Develop Reference

Spring Security + SAML 2.0 Configuration --> WebServerException: Unable to start embedded Tomcat

Trying to configure Spring Security + Saml 2.0 for our app. Without the Spring Security config the app runs fine. As soon as we activate Spring Security we get a Tomcat exception as follows:
2023-01-12 19:53:21.191 INFO 31028 --- [ restartedMain] com.atos.AerApp : Starting AerApp using Java 17.0.5 on LAPTOP-FRSNQQSJ with PID 31028 (C:\Projects local\AER-Backend\backend\build\classes\java\main started by a882102 in C:\Projects local\AER-Backend\backend)
2023-01-12 19:53:21.192 INFO 31028 --- [ restartedMain] com.atos.AerApp : No active profile set, falling back to 1 default profile: "default"
2023-01-12 19:53:21.223 INFO 31028 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2023-01-12 19:53:21.223 INFO 31028 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2023-01-12 19:53:21.776 INFO 31028 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2023-01-12 19:53:21.813 INFO 31028 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 32 ms. Found 3 JPA repository interfaces.
2023-01-12 19:53:22.254 INFO 31028 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2023-01-12 19:53:22.260 INFO 31028 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2023-01-12 19:53:22.260 INFO 31028 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.70]
2023-01-12 19:53:22.325 INFO 31028 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2023-01-12 19:53:22.325 INFO 31028 --- [ restartedMain] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1102 ms
2023-01-12 19:53:22.334 ERROR 31028 --- [ restartedMain] o.s.b.web.embedded.tomcat.TomcatStarter : Error starting Tomcat context. Exception: org.springframework.beans.factory.UnsatisfiedDependencyException. Message: Error creating bean with name 'metadata' defined in class path resource [com/atos/config/SecurityConfig.class]: Unsatisfied dependency expressed through method 'metadata' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'relyingPartyRegistrationResolver' defined in class path resource [com/atos/config/SecurityConfig.class]: Unsatisfied dependency expressed through method 'relyingPartyRegistrationResolver' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'repository' defined in class path resource [com/atos/config/SecurityConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.security.saml2.provider.service.registration.RelyingPartyRegistrationRepository]: Factory method 'repository' threw exception; nested exception is java.lang.NullPointerException: Cannot invoke "java.net.URL.getFile()" because the return value of "java.lang.ClassLoader.getResource(String)" is null
2023-01-12 19:53:22.362 INFO 31028 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2023-01-12 19:53:22.368 WARN 31028 --- [ restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
2023-01-12 19:53:22.373 INFO 31028 --- [ restartedMain] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2023-01-12 19:53:22.389 ERROR 31028 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed
org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:165) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:577) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) ~[spring-boot-2.7.7.jar:2.7.7]
at com.atos.AerApp.main(AerApp.java:18) ~[main/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.7.7.jar:2.7.7]
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:142) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:479) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:211) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:184) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:162) ~[spring-boot-2.7.7.jar:2.7.7]
... 13 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'metadata' defined in class path resource [com/atos/config/SecurityConfig.class]: Unsatisfied dependency expressed through method 'metadata' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'relyingPartyRegistrationResolver' defined in class path resource [com/atos/config/SecurityConfig.class]: Unsatisfied dependency expressed through method 'relyingPartyRegistrationResolver' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'repository' defined in class path resource [com/atos/config/SecurityConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.security.saml2.provider.service.registration.RelyingPartyRegistrationRepository]: Factory method 'repository' threw exception; nested exception is java.lang.NullPointerException: Cannot invoke "java.net.URL.getFile()" because the return value of "java.lang.ClassLoader.getResource(String)" is null
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:541) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:212) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:203) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addServletContextInitializerBeans(ServletContextInitializerBeans.java:97) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.web.servlet.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:86) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getServletContextInitializerBeans(ServletWebServerApplicationContext.java:262) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.selfInitialize(ServletWebServerApplicationContext.java:236) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.web.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:53) ~[spring-boot-2.7.7.jar:2.7.7]
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5211) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) ~[na:na]
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:835) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) ~[na:na]
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:265) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:430) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) ~[tomcat-embed-core-9.0.70.jar:9.0.70]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123) ~[spring-boot-2.7.7.jar:2.7.7]
... 18 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'relyingPartyRegistrationResolver' defined in class path resource [com/atos/config/SecurityConfig.class]: Unsatisfied dependency expressed through method 'relyingPartyRegistrationResolver' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'repository' defined in class path resource [com/atos/config/SecurityConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.security.saml2.provider.service.registration.RelyingPartyRegistrationRepository]: Factory method 'repository' threw exception; nested exception is java.lang.NullPointerException: Cannot invoke "java.net.URL.getFile()" because the return value of "java.lang.ClassLoader.getResource(String)" is null
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:541) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1391) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1311) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791) ~[spring-beans-5.3.24.jar:5.3.24]
... 58 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'repository' defined in class path resource [com/atos/config/SecurityConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.security.saml2.provider.service.registration.RelyingPartyRegistrationRepository]: Factory method 'repository' threw exception; nested exception is java.lang.NullPointerException: Cannot invoke "java.net.URL.getFile()" because the return value of "java.lang.ClassLoader.getResource(String)" is null
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:486) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1391) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1311) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791) ~[spring-beans-5.3.24.jar:5.3.24]
... 72 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.security.saml2.provider.service.registration.RelyingPartyRegistrationRepository]: Factory method 'repository' threw exception; nested exception is java.lang.NullPointerException: Cannot invoke "java.net.URL.getFile()" because the return value of "java.lang.ClassLoader.getResource(String)" is null
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.3.24.jar:5.3.24]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653) ~[spring-beans-5.3.24.jar:5.3.24]
... 86 common frames omitted
Caused by: java.lang.NullPointerException: Cannot invoke "java.net.URL.getFile()" because the return value of "java.lang.ClassLoader.getResource(String)" is null
at com.atos.config.SecurityConfig.repository(SecurityConfig.java:64) ~[main/:na]
at com.atos.config.SecurityConfig$$EnhancerBySpringCGLIB$$605b27de.CGLIB$repository$1(<generated>) ~[main/:na]
at com.atos.config.SecurityConfig$$EnhancerBySpringCGLIB$$605b27de$$FastClassBySpringCGLIB$$66e06ba2.invoke(<generated>) ~[main/:na]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.3.24.jar:5.3.24]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331) ~[spring-context-5.3.24.jar:5.3.24]
at com.atos.config.SecurityConfig$$EnhancerBySpringCGLIB$$605b27de.repository(<generated>) ~[main/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.3.24.jar:5.3.24]
... 87 common frames omitted
Process finished with exit code 0
Spring Security + Saml Config
#Configuration
public class SecurityConfig {
#Bean
SecurityFilterChain app(HttpSecurity http) throws Exception {
// #formatter:off
http
.authorizeHttpRequests((authorize) -> authorize
.anyRequest().authenticated()
)
.saml2Login(Customizer.withDefaults())
.saml2Logout(Customizer.withDefaults());
// #formatter:on
return http.build();
}
#Bean
RelyingPartyRegistrationResolver relyingPartyRegistrationResolver(
RelyingPartyRegistrationRepository registrations) {
return new DefaultRelyingPartyRegistrationResolver((id) -> registrations.findByRegistrationId("wac"));
}
#Bean
Saml2AuthenticationTokenConverter authentication(RelyingPartyRegistrationResolver registrations) {
return new Saml2AuthenticationTokenConverter(registrations);
}
#Bean
FilterRegistrationBean<Saml2MetadataFilter> metadata(RelyingPartyRegistrationResolver registrations) {
Saml2MetadataFilter metadata = new Saml2MetadataFilter(registrations, new OpenSamlMetadataResolver());
FilterRegistrationBean<Saml2MetadataFilter> filter = new FilterRegistrationBean<>(metadata);
filter.setOrder(-101);
return filter;
}
#Bean
RelyingPartyRegistrationRepository repository() throws Exception{
ClassLoader classLoader = getClass().getClassLoader();
File verificationKey = new File(classLoader.getResource("saml-certificate/saml.crt").getFile());
X509Certificate certificate = X509Support.decodeCertificate(verificationKey);
Saml2X509Credential credential= Saml2X509Credential.verification(certificate);
RelyingPartyRegistration wac = RelyingPartyRegistrations
.fromMetadataLocation("classpath:saml-certificate/cond2fa_256.xml")
.registrationId("wac").assertingPartyDetails((details) -> details.verificationX509Credentials(
(c) -> c.add(credential)
).wantAuthnRequestsSigned(false))
.singleLogoutServiceLocation("http://localhost:8080/logout/saml2/slo").build();
return new InMemoryRelyingPartyRegistrationRepository(wac);
}
}
application.properties
# Configure connection pooling if needed
spring.datasource.hikari.maximum-pool-size=10
#H2
spring.jpa.show-sql=false
spring.jpa.properties.hibernate.format_sql=true
spring.h2.console.enabled=true
spring.h2.console.path=/h2-console
spring.datasource.username=sa
spring.datasource.password=pass
spring.datasource.url=jdbc:h2:mem:testdb
#spring.jpa.hibernate.ddl-auto=none
spring.jpa.generate-ddl=false
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.mvc.pathmatch.matching-strategy = ANT_PATH_MATCHER
build.gradle
plugins {
id 'java'
id 'org.springframework.boot' version '2.7.7'
id 'io.spring.dependency-management' version '1.0.15.RELEASE'
}
group = 'com.atos'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '17'
configurations {
compileOnly {
extendsFrom annotationProcessor
}
}
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'org.springframework.boot:spring-boot-starter-validation'
implementation 'org.springframework.boot:spring-boot-starter-web'
implementation 'org.springframework.boot:spring-boot-starter-security'
compileOnly 'org.projectlombok:lombok'
developmentOnly 'org.springframework.boot:spring-boot-devtools'
annotationProcessor 'org.projectlombok:lombok'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
testImplementation 'org.springframework.security:spring-security-test'
implementation group: 'org.modelmapper', name: 'modelmapper', version: '3.1.1'
implementation 'org.springframework.security:spring-security-core:6.0.1'
implementation 'org.springframework.security:spring-security-saml2-service-provider'
//Swagger
implementation 'io.springfox:springfox-swagger-ui:3.0.0'
implementation 'io.springfox:springfox-boot-starter:3.0.0'
implementation 'io.springfox:springfox-swagger2:3.0.0'
// H2
runtimeOnly 'com.h2database:h2'
}
tasks.named('test') {
useJUnitPlatform()
}
tasks.withType(Jar).all {
duplicatesStrategy 'exclude'
}
Tried a bunch of dependencies suggested on stackoverflow for similar problems, changing the tomcat port, changing project jdk from 17 to 11 nothing helped. I'm still a junior dev btw.
Appreciate your feedback.

The SAML stack can be difficult to debug! Look at the last Exception in the stack trace:
Caused by: java.lang.NullPointerException: Cannot invoke
"java.net.URL.getFile()" because the return value of
"java.lang.ClassLoader.getResource(String)" is null
Looks like an error locating classpath:saml-certificate/cond2fa_256.xml.
Check that the path saml-certificate/cond2fa_256.xml is spelled right.
Check that the file cond2fa_256.xml does really appear within a directory named saml-certificate either in your file system or in a JAR file.
If in your file system, saml-certificate should be a sub-directory of one of the entries in your CLASSPATH.
If in a JAR file, then saml-certificate should be a top-level directory in that JAR file.

Error creating bean with name 'integrationGlobalProperties' after updated spring boot from 2.4.1 to 2.7.0

Im trying to run this Spring Boot project. Im trying to upgrade spring boot from version 2.4.1 to 2.7.0. I get those errors that you can see in the error stacktrace. Everything is working fine in version 2.4.1. Im using Intellij 2020.3 and also get the same errors running with maven.
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.ms.md</groupId>
<artifactId>app</artifactId>
<version>1.0.0</version>
<name>proxyapp</name>
<description>application</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.4.13</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
<version>2.4.11</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-gcp-starter-pubsub</artifactId>
<version>1.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-core</artifactId>
<version>5.4.3</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
<version>2.4.3</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-oauth2-resource-server</artifactId>
<version>5.5.4</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-oauth2-jose</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.retry</groupId>
<artifactId>spring-retry</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
<version>2.4.12</version>
</dependency>
<dependency>
<groupId>com.azure.spring</groupId>
<artifactId>azure-spring-boot-starter-active-directory</artifactId>
<version>3.6.0</version>
</dependency>
<dependency>
<groupId>com.microsoft.azure</groupId>
<artifactId>azure-keyvault-secrets-spring-boot-starter</artifactId>
<version>2.3.5</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.azure</groupId>
<artifactId>azure-core</artifactId>
<version>1.23.1</version>
</dependency>
<dependency>
<groupId>com.azure</groupId>
<artifactId>azure-messaging-servicebus</artifactId>
<version>7.5.2</version>
</dependency>
<dependency>
<groupId>com.microsoft.azure</groupId>
<artifactId>azure-storage</artifactId>
<version>8.6.6</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.22</version>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.8.0</version>
</dependency>
<dependency>
<groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-ui</artifactId>
<version>1.6.0</version>
</dependency>
<!-- Test -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-launcher</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>2.4.2</version>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
</project>
Error stacktrace
2022-06-03 10:39:52.667 INFO 15667 --- [ main] faultConfiguringBeanFactoryPostProcessor : No bean named 'errorChannel' has been explicitly defined. Therefore, a default PublishSubscribeChannel will be created.
2022-06-03 10:39:52.674 INFO 15667 --- [ main] faultConfiguringBeanFactoryPostProcessor : No bean named 'integrationHeaderChannelRegistry' has been explicitly defined. Therefore, a default DefaultHeaderChannelRegistry will be created.
2022-06-03 10:39:52.748 INFO 15667 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.integration.config.IntegrationManagementConfiguration' of type [org.springframework.integration.config.IntegrationManagementConfiguration] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2022-06-03 10:39:52.814 INFO 15667 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'integrationChannelResolver' of type [org.springframework.integration.support.channel.BeanFactoryChannelResolver] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2022-06-03 10:39:52.816 INFO 15667 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'integrationDisposableAutoCreatedBeans' of type [org.springframework.integration.config.annotation.Disposables] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2022-06-03 10:39:53.040 INFO 15667 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2022-06-03 10:39:53.046 INFO 15667 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2022-06-03 10:39:53.046 INFO 15667 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.63]
2022-06-03 10:39:53.148 INFO 15667 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2022-06-03 10:39:53.148 INFO 15667 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1744 ms
2022-06-03 10:39:53.319 INFO 15667 --- [ main] c.m.a.s.a.a.AADAuthenticationProperties : Creating AzureADStatelessAuthFilter bean.
2022-06-03 10:39:53.944 INFO 15667 --- [ main] o.s.s.web.DefaultSecurityFilterChain : Will secure any request with [org.springframework.security.web.session.DisableEncodeUrlFilter#24aedcc5, org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter#74ebd159, org.springframework.security.web.context.SecurityContextPersistenceFilter#37ffe4f3, org.springframework.security.web.header.HeaderWriterFilter#785a4557, org.springframework.security.web.csrf.CsrfFilter#78eafad, org.springframework.security.web.authentication.logout.LogoutFilter#4751cd3, org.springframework.security.oauth2.server.resource.web.BearerTokenAuthenticationFilter#7dd3981e, org.springframework.security.web.savedrequest.RequestCacheAwareFilter#202f054f, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter#13908f9c, org.springframework.security.web.authentication.AnonymousAuthenticationFilter#1850f2da, org.springframework.security.web.session.SessionManagementFilter#3739f3c9, org.springframework.security.web.access.ExceptionTranslationFilter#3ef0e576, org.springframework.security.web.access.intercept.FilterSecurityInterceptor#8851ec]
2022-06-03 10:39:55.291 WARN 15667 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'channelInitializer': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'integrationGlobalProperties' defined in class path resource [org/springframework/boot/autoconfigure/integration/IntegrationAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.integration.context.IntegrationProperties]: Factory method 'integrationGlobalProperties' threw exception; nested exception is java.lang.IllegalAccessError: class org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration tried to access private method 'void org.springframework.integration.context.IntegrationProperties.<init>()' (org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration and org.springframework.integration.context.IntegrationProperties are in unnamed module of loader 'app')
2022-06-03 10:39:55.295 INFO 15667 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2022-06-03 10:39:55.317 INFO 15667 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-06-03 10:39:55.334 ERROR 15667 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'channelInitializer': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'integrationGlobalProperties' defined in class path resource [org/springframework/boot/autoconfigure/integration/IntegrationAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.integration.context.IntegrationProperties]: Factory method 'integrationGlobalProperties' threw exception; nested exception is java.lang.IllegalAccessError: class org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration tried to access private method 'void org.springframework.integration.context.IntegrationProperties.<init>()' (org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration and org.springframework.integration.context.IntegrationProperties are in unnamed module of loader 'app')
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:628) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:953) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) ~[spring-context-5.3.20.jar:5.3.20]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.20.jar:5.3.20]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.0.jar:2.7.0]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:734) ~[spring-boot-2.7.0.jar:2.7.0]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.0.jar:2.7.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) ~[spring-boot-2.7.0.jar:2.7.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306) ~[spring-boot-2.7.0.jar:2.7.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1295) ~[spring-boot-2.7.0.jar:2.7.0]
at com.equinor.mss.mdm.MdmProxyAppApplication.main(MdmProxyAppApplication.java:11) ~[classes/:na]
Caused by: org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'integrationGlobalProperties' defined in class path resource [org/springframework/boot/autoconfigure/integration/IntegrationAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.integration.context.IntegrationProperties]: Factory method 'integrationGlobalProperties' threw exception; nested exception is java.lang.IllegalAccessError: class org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration tried to access private method 'void org.springframework.integration.context.IntegrationProperties.<init>()' (org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration and org.springframework.integration.context.IntegrationProperties are in unnamed module of loader 'app')
at org.springframework.context.expression.StandardBeanExpressionResolver.evaluate(StandardBeanExpressionResolver.java:170) ~[spring-context-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractBeanFactory.evaluateBeanDefinitionString(AbstractBeanFactory.java:1631) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.doEvaluate(BeanDefinitionValueResolver.java:280) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.evaluate(BeanDefinitionValueResolver.java:252) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:226) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1707) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1452) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) ~[spring-beans-5.3.20.jar:5.3.20]
... 15 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'integrationGlobalProperties' defined in class path resource [org/springframework/boot/autoconfigure/integration/IntegrationAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.integration.context.IntegrationProperties]: Factory method 'integrationGlobalProperties' threw exception; nested exception is java.lang.IllegalAccessError: class org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration tried to access private method 'void org.springframework.integration.context.IntegrationProperties.<init>()' (org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration and org.springframework.integration.context.IntegrationProperties are in unnamed module of loader 'app')
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:638) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.integration.context.IntegrationContextUtils.getBeanOfType(IntegrationContextUtils.java:173) ~[spring-integration-core-5.4.3.jar:5.4.3]
at org.springframework.integration.context.IntegrationContextUtils.getIntegrationProperties(IntegrationContextUtils.java:195) ~[spring-integration-core-5.4.3.jar:5.4.3]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
at org.springframework.expression.spel.support.ReflectiveMethodExecutor.execute(ReflectiveMethodExecutor.java:139) ~[spring-expression-5.3.20.jar:5.3.20]
at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:139) ~[spring-expression-5.3.20.jar:5.3.20]
at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:95) ~[spring-expression-5.3.20.jar:5.3.20]
at org.springframework.expression.spel.ast.CompoundExpression.getValueRef(CompoundExpression.java:61) ~[spring-expression-5.3.20.jar:5.3.20]
at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:91) ~[spring-expression-5.3.20.jar:5.3.20]
at org.springframework.expression.spel.ast.SpelNodeImpl.getValue(SpelNodeImpl.java:112) ~[spring-expression-5.3.20.jar:5.3.20]
at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:273) ~[spring-expression-5.3.20.jar:5.3.20]
at org.springframework.context.expression.StandardBeanExpressionResolver.evaluate(StandardBeanExpressionResolver.java:167) ~[spring-context-5.3.20.jar:5.3.20]
... 22 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.integration.context.IntegrationProperties]: Factory method 'integrationGlobalProperties' threw exception; nested exception is java.lang.IllegalAccessError: class org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration tried to access private method 'void org.springframework.integration.context.IntegrationProperties.<init>()' (org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration and org.springframework.integration.context.IntegrationProperties are in unnamed module of loader 'app')
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.3.20.jar:5.3.20]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653) ~[spring-beans-5.3.20.jar:5.3.20]
... 45 common frames omitted
Caused by: java.lang.IllegalAccessError: class org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration tried to access private method 'void org.springframework.integration.context.IntegrationProperties.<init>()' (org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration and org.springframework.integration.context.IntegrationProperties are in unnamed module of loader 'app')
at org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration.integrationGlobalProperties(IntegrationAutoConfiguration.java:94) ~[spring-boot-autoconfigure-2.7.0.jar:2.7.0]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.3.20.jar:5.3.20]
... 46 common frames omitted
Process finished with exit code 1
Thank you for help in advance!

Solved the issues by upgrading:
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-core</artifactId>
<version>5.5.12</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-oauth2-resource-server</artifactId>
<version>5.7.1</version>
</dependency>

Spring Boot REST - MYSQL connection not working

I am trying to follow a simple sample app tutorial to create a spring boot app and connect it to a mysql database. Using IntelliJ ide. https://www.youtube.com/watch?v=YVl6M5ztOu8
Project Structure:
src/main/java/com.example.crudSample
src/main/java/com.example.crudSample/controller/ApiController
src/main/java/com.example.crudSample/models/User
src/main/java/com.example.crudSample/repo/UserRepo
src/test/java/com.example.crudSample/CrudSampleApplicationTests.java
When I try to run this sample app I get the following error message:
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.RuntimeException: Failed to load driver class com.mysql.cj.jdbc.Driver in either of HikariConfig class loader or Thread context classloader
**Steps Taken To Run The Program:
Create connection in mysql workbench called "restfulapi"
parameters are root with localhost port 3306, user is admin
Test Connection: Successfully Made MYSQL Connection (was not prompted for a password when clicking)
Click on Connection on MySQL Workbench (did not prompt for a password when clicking connection), and create a crudusers schema
Run the spring program using the application runner class
Received the error message**
pom.xml:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
</dependencies>
application.properties code:
spring.datasource.url=jdbc:mysql://localhost:3306/crudusers?useSSL=true&serverTimezone=UTC
spring.datasource.username = root
spring.jpa.hibernate.ddl-auto=update
UserRepo Code:
package com.example.crudSample.repo;
import com.example.crudSample.models.User;
import org.springframework.data.jpa.repository.JpaRepository;
public interface UserRepo extends JpaRepository<User, Long> {
}
ApiController Code:
package com.example.crudSample.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
#RestController
public class ApiController {
#GetMapping(value="/")
public String getPage() {
return "Welcome";
}
}
User Class Code:
package com.example.crudSample.models;
import javax.persistence.*;
#Entity
public class User {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;
#Column
private String firstName;
#Column
private String lastName;
#Column
private int age;
#Column
private String occupation;
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getOccupation() {
return occupation;
}
public void setOccupation(String occupation) {
this.occupation = occupation;
}
}
CrudSampleApplicationTests.java code:
package com.example.crudSample;
/*
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
#SpringBootTest
class CrudSampleApplicationTests {
#Test
void contextLoads() {
}
}
*/
Here is the full stack trace:
2022-02-27 02:31:19.645 INFO 19172 --- [ main] c.e.crudSample.CrudSampleApplication : No active profile set, falling back to 1 default profile: "default"
2022-02-27 02:31:20.419 INFO 19172 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2022-02-27 02:31:20.471 INFO 19172 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 43 ms. Found 1 JPA repository interfaces.
2022-02-27 02:31:21.586 INFO 19172 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2022-02-27 02:31:21.597 INFO 19172 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2022-02-27 02:31:21.597 INFO 19172 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.58]
2022-02-27 02:31:21.743 INFO 19172 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2022-02-27 02:31:21.743 INFO 19172 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 2020 ms
2022-02-27 02:31:21.829 ERROR 19172 --- [ main] com.zaxxer.hikari.HikariConfig : Failed to load driver class com.mysql.cj.jdbc.Driver from HikariConfig class classloader jdk.internal.loader.ClassLoaders$AppClassLoader#2626b418
2022-02-27 02:31:21.832 WARN 19172 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'dataSourceScriptDatabaseInitializer' defined in class path resource [org/springframework/boot/autoconfigure/sql/init/DataSourceInitializationConfiguration.class]: Unsatisfied dependency expressed through method 'dataSourceScriptDatabaseInitializer' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.RuntimeException: Failed to load driver class com.mysql.cj.jdbc.Driver in either of HikariConfig class loader or Thread context classloader
2022-02-27 02:31:21.836 INFO 19172 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2022-02-27 02:31:21.851 INFO 19172 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-02-27 02:31:21.877 ERROR 19172 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'dataSourceScriptDatabaseInitializer' defined in class path resource [org/springframework/boot/autoconfigure/sql/init/DataSourceInitializationConfiguration.class]: Unsatisfied dependency expressed through method 'dataSourceScriptDatabaseInitializer' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.RuntimeException: Failed to load driver class com.mysql.cj.jdbc.Driver in either of HikariConfig class loader or Thread context classloader
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:541) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1154) ~[spring-context-5.3.16.jar:5.3.16]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:908) ~[spring-context-5.3.16.jar:5.3.16]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.16.jar:5.3.16]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.4.jar:2.6.4]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:740) ~[spring-boot-2.6.4.jar:2.6.4]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:415) ~[spring-boot-2.6.4.jar:2.6.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) ~[spring-boot-2.6.4.jar:2.6.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) ~[spring-boot-2.6.4.jar:2.6.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) ~[spring-boot-2.6.4.jar:2.6.4]
at com.example.crudSample.CrudSampleApplication.main(CrudSampleApplication.java:10) ~[classes/:na]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.RuntimeException: Failed to load driver class com.mysql.cj.jdbc.Driver in either of HikariConfig class loader or Thread context classloader
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:638) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791) ~[spring-beans-5.3.16.jar:5.3.16]
... 21 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.RuntimeException: Failed to load driver class com.mysql.cj.jdbc.Driver in either of HikariConfig class loader or Thread context classloader
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.3.16.jar:5.3.16]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653) ~[spring-beans-5.3.16.jar:5.3.16]
... 35 common frames omitted
Caused by: java.lang.RuntimeException: Failed to load driver class com.mysql.cj.jdbc.Driver in either of HikariConfig class loader or Thread context classloader
at com.zaxxer.hikari.HikariConfig.setDriverClassName(HikariConfig.java:491) ~[HikariCP-4.0.3.jar:na]
at org.springframework.boot.jdbc.DataSourceBuilder$MappedDataSourceProperty.set(DataSourceBuilder.java:460) ~[spring-boot-2.6.4.jar:2.6.4]
at org.springframework.boot.jdbc.DataSourceBuilder$MappedDataSourceProperties.set(DataSourceBuilder.java:355) ~[spring-boot-2.6.4.jar:2.6.4]
at org.springframework.boot.jdbc.DataSourceBuilder.build(DataSourceBuilder.java:181) ~[spring-boot-2.6.4.jar:2.6.4]
at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration.createDataSource(DataSourceConfiguration.java:48) ~[spring-boot-autoconfigure-2.6.4.jar:2.6.4]
at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari.dataSource(DataSourceConfiguration.java:90) ~[spring-boot-autoconfigure-2.6.4.jar:2.6.4]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.3.16.jar:5.3.16]
... 36 common frames omitted
Process finished with exit code 1

You should add all this lines
spring.jpa.hibernate.ddl-auto=create
spring.datasource.initialization-mode=always
spring.datasource.url=jdbc:mysql://localhost:3306/snapchat?useUnicode=yes&characterEncoding=UTF-8&characterSetResults=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC
spring.datasource.username=root
spring.datasource.password=
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
jwt.secret={bcrypt}$donald
spring.jpa.properties.hibernate.connection.characterEncoding=utf-8
spring.jpa.properties.hibernate.connection.CharSet=utf-8
spring.jpa.properties.hibernate.connection.useUnicode=true
server.tomcat.uri-encoding=UTF-8
server.servlet.encoding.charset=UTF-8
server.servlet.encoding.enabled=true
server.servlet.encoding.force=true
Could change the name of DB in my case is "snapchat"
you should the add this dependency on pom.xml
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.23</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.3.5</version>
</dependency>

Solved the issue by removing the scope tag for the dependency in the pom.xml file and then refreshing the pom.xml file.
Old Code:
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
New Code:
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>

You should also specify the connector for mysql
spring.datasource.driver-class=com.mysql.jdbc.Driver
I think this should fix it.

#EnableJpaRepositories is not detecting or #Autowired of Repository is not detected anywhere in spring-boot application

I have referred many stackoverflow questions similar to this. I have tried all the solutions provided and the suggestions. But keeps giving the error due to non-detection of #Autowired of Repository class irrespective of its definition in #EnableJpaRepositories in the Boot application file. I have tried using
#Configuration
#EnableAutoConfiguration
#ComponentScan("com.example.repository") as well in the Boot application class.
Nothing seems to resolve the error.
Desperately seeking help from anyone who can find out what am I doing wrong. Please help me out. I have been trying to find on the internet and tried on my own. But still no luck and I have not been patient for the past two days because of this.
I want to resolve this and get ready to get a job using spring-boot-starter-data-jpa in their project. So please help.
===============================================================================
enter code here
folder structure
src->main->java->com
- ApplicationDataSource.java
src->main->java->com->example->controller
- H2Controller.java
src->main->java->com->example->service
- H2Service.java
src->main->java->com->example->repository
- H2Repository.java
-------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>h2sample</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>h2sample</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
<version>9.0.10</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>2.3.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.3.2.RELEASE</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.jolbox</groupId>
<artifactId>bonecp</artifactId>
<version>0.8.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
---------------------------------------------------
package com;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import com.example.repository.H2Repository;
import com.example.repository.City;
/*
* #Configuration
*
* #EnableAutoConfiguration
*
* #ComponentScan("com.example.h2sample")
*/
#SpringBootApplication(scanBasePackages= {"com.example.controller","com.example.service"})
#EnableJpaRepositories("com.example.repository")
public class H2sampleApplication {
public static void main(String[] args) {
SpringApplication.run(H2sampleApplication.class, args);
}
}
--------------------
package com.example.controller;
import org.springframework.http.ResponseEntity;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.beans.factory.annotation.Autowired;
import com.example.service.H2Service;
#RestController
public class H2Controller {
#Autowired
private H2Service h2service;
#GetMapping(value="/testh2")
public String testh2() {
return "Hi Test "+h2service.getH2Service();
}
}
-------------------------------------------
package com.example.service;
import org.springframework.stereotype.Service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import com.example.repository.H2Repository;
import com.example.repository.City;
#Service
public class H2Service {
#Autowired
private H2Repository<City> h2repository;
public String getH2Service() {
System.out.println(h2repository.findAll());
return " from Service";
}
}
--------------------------------------
package com.example.repository;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
import org.springframework.stereotype.Component;
import java.util.List;
public interface H2Repository<City> extends CrudRepository<City, Long> {
public List<City> findAll();
}
-----------------------------------------
package com.example.repository;
import java.util.Objects;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table(name = "CITY")
public class City {
#Id
private Long id;
private String name;
private int population;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getPopulation() {
return population;
}
public void setPopulation(int population) {
this.population = population;
}
}
===================================================================
server.servlet.context-path=/h2
spring.datasource.driverClassName=org.h2.Driver
spring.datasource.url=jdbc:h2:./test-db
spring.datasource.username=sa
spring.datasource.password=password
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.jpa.show-sql=true
Error
----
H2Sample\h2sample\target\classes started by Sethu in H:\H2Sample\h2sample)
2020-07-28 11:39:01.955 INFO 14236 --- [ main] com.H2sampleApplication : No active profile set, falling back to default profiles: default
2020-07-28 11:39:02.453 INFO 14236 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2020-07-28 11:39:02.511 INFO 14236 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 46ms. Found 1 JPA repository interfaces.
2020-07-28 11:39:03.610 INFO 14236 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2020-07-28 11:39:03.624 INFO 14236 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-07-28 11:39:03.624 INFO 14236 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.37]
2020-07-28 11:39:03.754 INFO 14236 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/h2] : Initializing Spring embedded WebApplicationContext
2020-07-28 11:39:03.755 INFO 14236 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1736 ms
2020-07-28 11:39:03.922 INFO 14236 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2020-07-28 11:39:04.047 INFO 14236 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2020-07-28 11:39:05.024 INFO 14236 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2020-07-28 11:39:05.072 INFO 14236 --- [ main] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.4.18.Final
2020-07-28 11:39:05.309 INFO 14236 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
2020-07-28 11:39:05.414 INFO 14236 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
Hibernate: drop table if exists city CASCADE
Hibernate: create table city (id bigint not null, name varchar(255), population integer not null, primary key (id))
2020-07-28 11:39:05.970 INFO 14236 --- [ main] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2020-07-28 11:39:05.980 INFO 14236 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2020-07-28 11:39:06.135 WARN 14236 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'h2Controller': Unsatisfied dependency expressed through field 'h2service'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'h2Service': Unsatisfied dependency expressed through field 'h2repository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'h2Repository' defined in com.example.repository.H2Repository defined in #EnableJpaRepositories declared on H2sampleApplication: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class java.lang.Object
2020-07-28 11:39:06.136 INFO 14236 --- [ main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2020-07-28 11:39:06.141 INFO 14236 --- [ main] .SchemaDropperImpl$DelayedDropActionImpl : HHH000477: Starting delayed evictData of schema as part of SessionFactory shut-down'
Hibernate: drop table if exists city CASCADE
2020-07-28 11:39:06.150 INFO 14236 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2020-07-28 11:39:06.188 INFO 14236 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
2020-07-28 11:39:06.194 INFO 14236 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2020-07-28 11:39:06.223 INFO 14236 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-07-28 11:39:06.255 ERROR 14236 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'h2Controller': Unsatisfied dependency expressed through field 'h2service'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'h2Service': Unsatisfied dependency expressed through field 'h2repository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'h2Repository' defined in com.example.repository.H2Repository defined in #EnableJpaRepositories declared on H2sampleApplication: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class java.lang.Object
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1420) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at com.H2sampleApplication.main(H2sampleApplication.java:28) [classes/:na]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'h2Service': Unsatisfied dependency expressed through field 'h2repository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'h2Repository' defined in com.example.repository.H2Repository defined in #EnableJpaRepositories declared on H2sampleApplication: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class java.lang.Object
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1420) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1307) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
... 20 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'h2Repository' defined in com.example.repository.H2Repository defined in #EnableJpaRepositories declared on H2sampleApplication: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class java.lang.Object
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1794) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1307) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
... 33 common frames omitted
Caused by: java.lang.IllegalArgumentException: Not a managed type: class java.lang.Object
at org.hibernate.metamodel.internal.MetamodelImpl.managedType(MetamodelImpl.java:582) ~[hibernate-core-5.4.18.Final.jar:5.4.18.Final]
at org.hibernate.metamodel.internal.MetamodelImpl.managedType(MetamodelImpl.java:85) ~[hibernate-core-5.4.18.Final.jar:5.4.18.Final]
at org.springframework.data.jpa.repository.support.JpaMetamodelEntityInformation.<init>(JpaMetamodelEntityInformation.java:75) ~[spring-data-jpa-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.data.jpa.repository.support.JpaEntityInformationSupport.getEntityInformation(JpaEntityInformationSupport.java:66) ~[spring-data-jpa-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getEntityInformation(JpaRepositoryFactory.java:229) ~[spring-data-jpa-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:179) ~[spring-data-jpa-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:162) ~[spring-data-jpa-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:72) ~[spring-data-jpa-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:309) ~[spring-data-commons-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:297) ~[spring-data-commons-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.data.util.Lazy.getNullable(Lazy.java:212) ~[spring-data-commons-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.data.util.Lazy.get(Lazy.java:94) ~[spring-data-commons-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:300) ~[spring-data-commons-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:144) ~[spring-data-jpa-2.3.2.RELEASE.jar:2.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1853) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1790) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
... 43 common frames omitted
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.079 s
[INFO] Finished at: 2020-07-28T11:39:06+05:30
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.3.2.RELEASE:run (default-cli) on project h2sample: Application finished with exit code: 1 -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
--------------------------------------------------------------------------------------

Do not need the component scan if you have your main class at the top of the structure, also not need
#Configuration
#EnableAutoConfiguration
#ComponentScan("com.example.repository") as well in the Boot application class.
only need
#SpringBootApplication in your main class.
HERE NOT FOLLOWING DEFAULT STRUCTURE OF SPRING
use the
#ComponentScan(basePackages = {"com.example"})
try this following code:
#SpringBootApplication
#EnableAutoConfiguration
#ComponentScan(basePackages={"<base package name>"})
#EnableJpaRepositories(basePackages="<repository package name>")
#EnableTransactionManagement
#EntityScan(basePackages="<entity package name>")

In your Service class, replace below
#Autowired
private H2Repository<City> h2repository;
with
#Autowired
private H2Repository h2repository;
And also your repository interface, replace below
public interface H2Repository<City> extends CrudRepository<City, Long>
with
public interface H2Repository extends CrudRepository<City, Long>

I could solve this issue by selecting the right java version, dependencies in pom.xml, application.properties and made sure the SQL server is running.

IntelliJ with spring-boot-jetty-jsp

I'm trying to run the spring-boot-jetty-jsp sample. It works from the command line using mvn jetty:run but when I try it in IntelliJ I get this error:
2016-07-16 02:54:25.150 INFO 19012 --- [ main] s.jetty.jsp.SampleJettyJspApplication : Starting SampleJettyJspApplication on dac-Latitude-E7450 with PID 19012 (/home/dac/proj/spring-boot-master/spring-boot-samples/spring-boot-sample-jetty-jsp/target/classes started by dac in /home/dac/proj/spring-boot-master/spring-boot-samples/spring-boot-sample-jetty-jsp)
2016-07-16 02:54:25.153 INFO 19012 --- [ main] s.jetty.jsp.SampleJettyJspApplication : No active profile set, falling back to default profiles: default
2016-07-16 02:54:25.252 INFO 19012 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext#3ad83a66: startup date [Sat Jul 16 02:54:25 CEST 2016]; root of context hierarchy
2016-07-16 02:54:25.402 WARN 19012 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [sample.jetty.jsp.SampleJettyJspApplication]; nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.support.SpringBootServletInitializer
2016-07-16 02:54:25.426 ERROR 19012 --- [ main] o.s.boot.SpringApplication : Application startup failed
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [sample.jetty.jsp.SampleJettyJspApplication]; nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.support.SpringBootServletInitializer
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:187) ~[spring-context-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:321) ~[spring-context-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:243) ~[spring-context-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273) ~[spring-context-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:98) ~[spring-context-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:681) ~[spring-context-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:523) ~[spring-context-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-1.4.0.BUILD-SNAPSHOT.jar:1.4.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:369) [spring-boot-1.4.0.BUILD-SNAPSHOT.jar:1.4.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:313) [spring-boot-1.4.0.BUILD-SNAPSHOT.jar:1.4.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1185) [spring-boot-1.4.0.BUILD-SNAPSHOT.jar:1.4.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1174) [spring-boot-1.4.0.BUILD-SNAPSHOT.jar:1.4.0.BUILD-SNAPSHOT]
at sample.jetty.jsp.SampleJettyJspApplication.main(SampleJettyJspApplication.java:33) [classes/:na]
Caused by: java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.support.SpringBootServletInitializer
at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:163) ~[spring-core-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:301) ~[spring-context-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:237) ~[spring-context-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:204) ~[spring-context-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:173) ~[spring-context-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
... 12 common frames omitted
Caused by: java.lang.NoClassDefFoundError: javax/servlet/ServletContext
at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_91]
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_91]
at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_91]
at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:152) ~[spring-core-4.3.2.BUILD-20160715.204924-12.jar:4.3.2.BUILD-SNAPSHOT]
... 16 common frames omitted
Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletContext
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_91]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_91]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_91]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_91]
... 20 common frames omitted
Disconnected from the target VM, address: '127.0.0.1:36461', transport: 'socket'
Process finished with exit code 1
It is possible to create a maven configuration in IntelliJ and run the jetty:run argument with that configuration, then it works. But what does the above error mean?

It's because the example lists Jetty starter dependency as provided so IntelliJ does not include it in your module, making ServletContext class unavailable, thus causing the NoClassDefFound exception.
Change the definition of spring-boot-starter-jetty dependency in your pom.xml file:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
<!--<scope>provided</scope>-->
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>apache-jsp</artifactId>
<!--<scope>provided</scope>-->
</dependency>
and refresh/reimport the maven project in IntelliJ.
Alternatively, if you do not wish to change the example code, you can manually edit the dependencies in your module's settings in IntelliJ - simply change all Provided dependencies to Compile and it should yield a similar result.