Sping Boot Java backend application process gets killed - java

I have packaged my spring boot rest backend with mvn package.
When I run the jar on the server with java -jar ... the application starts and gets killed after a few seconds.
I also see that on the linux top view, that the java process goes over 300% CPU. Is that maybe the reason the process gets killed? And if yes, what can I do?
My spring boot application is not very big. Actually its almost empty.
Logs:
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.0.2.RELEASE)
2020-01-26 07:40:36.423 INFO 8144 --- [ main] d.c.c.CarorderprocessApplication : Starting CarorderprocessApplication v0.0.1-SNA
PSHOT on dedi1055.your-server.de with PID 8144 (/usr/www/users/waqfek/software_backend/carorderprocess-0.0.1-SNAPSHOT.jar started by waqfek in /us
r/www/users/waqfek/software_backend)
2020-01-26 07:40:36.426 INFO 8144 --- [ main] d.c.c.CarorderprocessApplication : No active profile set, falling back to default
profiles: default
2020-01-26 07:40:36.487 INFO 8144 --- [ main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servle
t.context.AnnotationConfigServletWebServerApplicationContext#5cbc508c: startup date [Sun Jan 26 07:40:36 CET 2020]; root of context hierarchy
2020-01-26 07:40:37.614 INFO 8144 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotati
on.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerB
ySpringCGLIB$$d289c8bd] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-01-26 07:40:37.915 INFO 8144 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8081 (http)
2020-01-26 07:40:37.939 INFO 8144 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-01-26 07:40:37.940 INFO 8144 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.31
2020-01-26 07:40:37.949 INFO 8144 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library whi
ch allows optimal performance in production environments was not found on the java.library.path: [/usr/java/packages/lib/amd64:/usr/lib/x86_64-lin
ux-gnu/jni:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu:/usr/lib/jni:/lib:/usr/lib]
2020-01-26 07:40:38.014 INFO 8144 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationCon
text
2020-01-26 07:40:38.014 INFO 8144 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization com
pleted in 1530 ms
2020-01-26 07:40:38.159 INFO 8144 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to:
[/*]
2020-01-26 07:40:38.159 INFO 8144 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [
/*]
2020-01-26 07:40:38.159 INFO 8144 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to:
[/*]
2020-01-26 07:40:38.159 INFO 8144 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*
]
2020-01-26 07:40:38.160 INFO 8144 --- [ost-startStop-1] .s.DelegatingFilterProxyRegistrationBean : Mapping filter: 'springSecurityFilterChain' to
: [/*]
2020-01-26 07:40:38.160 INFO 8144 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/]
2020-01-26 07:40:38.302 INFO 8144 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2020-01-26 07:40:38.306 WARN 8144 --- [ main] com.zaxxer.hikari.util.DriverDataSource : Registered driver with driverClassName=com.mysql.jdbc.Driver was not found, trying direct instantiation.
2020-01-26 07:40:38.491 INFO 8144 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2020-01-26 07:40:38.534 INFO 8144 --- [ main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2020-01-26 07:40:38.548 INFO 8144 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2020-01-26 07:40:38.625 INFO 8144 --- [ main] org.hibernate.Version : HHH000412: Hibernate Core {5.2.17.Final}
2020-01-26 07:40:38.627 INFO 8144 --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2020-01-26 07:40:38.661 INFO 8144 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2020-01-26 07:40:38.824 INFO 8144 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
2020-01-26 07:40:39.086 INFO 8144 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2020-01-26 07:40:39.172 INFO 8144 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2020-01-26 07:40:39.406 INFO 8144 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for #ControllerAdvice: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext#5cbc508c: startup date [Sun Jan 26 07:40:36 CET 2020]; root of context hierarchy
2020-01-26 07:40:39.444 WARN 8144 --- [ main] aWebConfiguration$JpaWebMvcConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2020-01-26 07:40:39.492 INFO 8144 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2020-01-26 07:40:39.494 INFO 8144 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2020-01-26 07:40:39.526 INFO 8144 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2020-01-26 07:40:39.526 INFO 8144 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2020-01-26 07:40:39.867 INFO 8144 --- [ main] .s.s.UserDetailsServiceAutoConfiguration :
Using generated security password: 8167df1e-24d1-4ebf-bb03-53e2385a1229
2020-01-26 07:40:40.030 INFO 8144 --- [ main] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: org.springframework.security.web.util.matcher.AnyRequestMatcher#1, [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter#d2de489, org.springframework.security.web.context.SecurityContextPersistenceFilter#28cda624, org.springframework.security.web.header.HeaderWriterFilter#5340477f, org.springframework.security.web.csrf.CsrfFilter#6f15d60e, org.springframework.security.web.authentication.logout.LogoutFilter#71687585, org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter#66ea810, org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter#5276d6ee, org.springframework.security.web.authentication.www.BasicAuthenticationFilter#2f953efd, org.springframework.security.web.savedrequest.RequestCacheAwareFilter#7eecb5b8, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter#475c9c31, org.springframework.security.web.authentication.AnonymousAuthenticationFilter#14bdbc74, org.springframework.security.web.session.SessionManagementFilter#7139992f, org.springframework.security.web.access.ExceptionTranslationFilter#446a1e84, org.springframework.security.web.access.intercept.FilterSecurityInterceptor#169bb4dd]
2020-01-26 07:40:40.112 INFO 8144 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2020-01-26 07:40:40.113 INFO 8144 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'dataSource' has been autodetected for JMX exposure
2020-01-26 07:40:40.118 INFO 8144 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located MBean 'dataSource': registering with JMX server as MBean [com.zaxxer.hikari:name=dataSource,type=HikariDataSource]
2020-01-26 07:40:40.142 INFO 8144 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8081 (http) with context path ''
2020-01-26 07:40:40.145 INFO 8144 --- [ main] d.c.c.CarorderprocessApplication : Started CarorderprocessApplication in 4.002 seconds (JVM running for 4.521)
Killed
...
top - 08:51:43 up 137 days, 11:30, 2 users, load average: 0.86, 0.39, 0.30
Tasks: 4 total, 1 running, 3 sleeping, 0 stopped, 0 zombie
%Cpu(s): 30.7 us, 0.9 sy, 0.0 ni, 68.1 id, 0.2 wa, 0.0 hi, 0.1 si, 0.0 st
KiB Mem : 16119112 total, 4416660 free, 7332300 used, 4370152 buff/cache
KiB Swap: 4194300 total, 3625572 free, 568728 used. 8221460 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
20338 waqfek 20 0 7069792 299952 16808 S 247.5 1.9 0:07.45 java
16765 waqfek 20 0 38960 3032 2704 R 0.0 0.0 0:00.57 top
27373 waqfek 20 0 14092 3600 3048 S 0.0 0.0 0:00.16 bash
28746 waqfek 20 0 14072 3524 2988 S 0.0 0.0 0:00.00 bash
I only have three files in my project:
1.:
package ...
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class CarorderprocessApplication {
public static void main(String[] args) {
SpringApplication.run(CarorderprocessApplication.class, args);
}
}
Then I have application.properties file with information for database connection and port.
pom.xml:
https://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
org.springframework.boot
spring-boot-starter-parent
2.0.2.RELEASE
de.countandcare
carorderprocess
0.0.1-SNAPSHOT
carorderprocess
Demo project for Spring Boot
<dependencyManagement>
<dependencies>
</dependencies>
</dependencyManagement>
<properties>
<java.version>1.8</java.version>
</properties>
<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-jdbc</artifactId>
<version>2.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.17</version>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0.2</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.5.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<executions>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>


Some ideas to check:
Try to run as detached: java -jar yourapp.jar &
Try ( just once ) to run under root
Check logs: journalctl -ex for details of who exactly has killed your application.
Depends on results, can plan next steps - typically which settings to adjust.

Related

Spring application stuck in start

I have a problem since I export and import a spring project, and it is that now it takes more than 70 seconds to start. Get stuck in Triggering deferred initialization of Spring Data repositories ...
This is the log of the console:
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.3.4.RELEASE)
2021-01-19 21:00:48.994 INFO 15368 --- [ restartedMain] com.practica.PracticaFinalApplication : Starting PracticaFinalApplication on DESKTOP-BG6SBT4 with PID 15368 (D:\workspace-spring-tool-suite-4-4.8.0.RELEASE\PRACTICA_FINAL\target\classes started by dani_ in D:\workspace-spring-tool-suite-4-4.8.0.RELEASE\PRACTICA_FINAL)
2021-01-19 21:00:48.998 INFO 15368 --- [ restartedMain] com.practica.PracticaFinalApplication : No active profile set, falling back to default profiles: default
2021-01-19 21:00:49.051 INFO 15368 --- [ restartedMain] o.s.b.devtools.restart.ChangeableUrls : The Class-Path manifest attribute in C:\Users\dani_\.m2\repository\com\oracle\database\jdbc\ojdbc8\19.3.0.0\ojdbc8-19.3.0.0.jar referenced one or more files that do not exist: file:/C:/Users/dani_/.m2/repository/com/oracle/database/jdbc/ojdbc8/19.3.0.0/oraclepki.jar
2021-01-19 21:00:49.051 INFO 15368 --- [ restartedMain] o.s.b.devtools.restart.ChangeableUrls : The Class-Path manifest attribute in C:\Users\dani_\.m2\repository\com\oracle\database\security\oraclepki\19.3.0.0\oraclepki-19.3.0.0.jar referenced one or more files that do not exist: file:/C:/Users/dani_/.m2/repository/com/oracle/database/security/oraclepki/19.3.0.0/osdt_core.jar,file:/C:/Users/dani_/.m2/repository/com/oracle/database/security/oraclepki/19.3.0.0/osdt_cert.jar,file:/C:/Users/dani_/.m2/repository/com/oracle/database/security/oraclepki/oracle.osdt/osdt_core.jar,file:/C:/Users/dani_/.m2/repository/com/oracle/database/security/oraclepki/oracle.osdt/osdt_cert.jar
2021-01-19 21:00:49.052 INFO 15368 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2021-01-19 21:00:49.052 INFO 15368 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2021-01-19 21:00:49.767 INFO 15368 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFERRED mode.
2021-01-19 21:00:49.848 INFO 15368 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 75ms. Found 6 JPA repository interfaces.
2021-01-19 21:00:50.143 INFO 15368 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.ws.config.annotation.DelegatingWsConfiguration' of type [org.springframework.ws.config.annotation.DelegatingWsConfiguration$$EnhancerBySpringCGLIB$$5974c00c] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-01-19 21:00:50.203 INFO 15368 --- [ restartedMain] .w.s.a.s.AnnotationActionEndpointMapping : Supporting [WS-Addressing August 2004, WS-Addressing 1.0]
2021-01-19 21:00:50.575 INFO 15368 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8085 (http)
2021-01-19 21:00:50.586 INFO 15368 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2021-01-19 21:00:50.587 INFO 15368 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.38]
2021-01-19 21:00:50.709 INFO 15368 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2021-01-19 21:00:50.710 INFO 15368 --- [ restartedMain] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1658 ms
2021-01-19 21:00:50.967 INFO 15368 --- [ restartedMain] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2021-01-19 21:00:51.007 INFO 15368 --- [ task-1] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2021-01-19 21:00:51.055 INFO 15368 --- [ task-1] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.4.21.Final
2021-01-19 21:00:51.101 WARN 15368 --- [ restartedMain] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2021-01-19 21:00:51.160 INFO 15368 --- [ task-1] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
2021-01-19 21:00:51.267 INFO 15368 --- [ task-1] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2021-01-19 21:00:51.313 INFO 15368 --- [ restartedMain] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: any request, [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter#5548d944, org.springframework.security.web.context.SecurityContextPersistenceFilter#52db2e9a, org.springframework.security.web.header.HeaderWriterFilter#2682a673, org.springframework.security.web.csrf.CsrfFilter#384244c7, org.springframework.security.web.authentication.logout.LogoutFilter#60a9bf00, org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter#14f3c976, org.springframework.security.web.savedrequest.RequestCacheAwareFilter#14a70864, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter#9aabdd5, org.springframework.security.web.authentication.AnonymousAuthenticationFilter#61618c62, org.springframework.security.web.session.SessionManagementFilter#1e6efa12, org.springframework.security.web.access.ExceptionTranslationFilter#72c01891, org.springframework.security.web.access.intercept.FilterSecurityInterceptor#43f59fcf]
2021-01-19 21:00:51.534 INFO 15368 --- [ task-1] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2021-01-19 21:00:51.551 INFO 15368 --- [ task-1] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.Oracle12cDialect
2021-01-19 21:00:51.756 INFO 15368 --- [ restartedMain] o.s.b.d.a.OptionalLiveReloadServer : LiveReload server is running on port 35729
2021-01-19 21:00:51.825 INFO 15368 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8085 (http) with context path ''
2021-01-19 21:00:51.828 INFO 15368 --- [ restartedMain] DeferredRepositoryInitializationListener : Triggering deferred initialization of Spring Data repositories…
2021-01-19 21:02:03.729 WARN 15368 --- [ task-1] o.h.b.i.InFlightMetadataCollectorImpl : HHH000069: Duplicate generator name sequence
2021-01-19 21:02:03.741 WARN 15368 --- [ task-1] o.h.b.i.InFlightMetadataCollectorImpl : HHH000069: Duplicate generator name sequence
2021-01-19 21:02:03.744 WARN 15368 --- [ task-1] o.h.b.i.InFlightMetadataCollectorImpl : HHH000069: Duplicate generator name sequence
2021-01-19 21:02:04.203 INFO 15368 --- [ task-1] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2021-01-19 21:02:04.211 INFO 15368 --- [ task-1] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2021-01-19 21:02:04.639 INFO 15368 --- [ restartedMain] DeferredRepositoryInitializationListener : Spring Data repositories initialized!
2021-01-19 21:02:04.647 INFO 15368 --- [ restartedMain] com.practica.PracticaFinalApplication : Started PracticaFinalApplication in 76.038 seconds (JVM running for 77.006)
And this is the pom.xml
4.0.0
org.springframework.boot
spring-boot-starter-parent
2.3.4.RELEASE
com.practica
PRACTICA_FINAL
0.0.1-SNAPSHOT
war
PRACTICA_FINAL
Practica
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web-services</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>com.oracle.database.jdbc</groupId>
<artifactId>ojdbc8</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.github.librepdf</groupId>
<artifactId>openpdf</artifactId>
<version>1.3.24</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.thymeleaf.extras</groupId>
<artifactId>thymeleaf-extras-springsecurity5</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>

In case it works for someone, I found the solution. I just had to add these two lines in my properties file and I went from starting in 70 seconds to starting in 4 seconds
spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults=false
spring.jpa.properties.hibernate.dialect =org.hibernate.dialect.Oracle12cDialect

I got whitelabel error page instead of eureka dashboard

I'm following a tutorial about Eureka to start up a sample eureka server ,I followed exactly the same steps but i get a whitelabel insteed of eureka dashbord, I will share with you all the configuration that I made
the POM.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com..discovery.service</groupId>
<artifactId>descoveryservice</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>descoveryservice</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Finchley.SR1</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
</repositories>
application.properties :
server.port=8010
spring.application.name=discoveryservice
eureka.client.registerWithEureka=false
eureka.client.fetchRegistry=false
eureka.client.serviceUrl.defaultZone = http://localhost:8010/eureka
and the finally the console :
2020-05-07 16:15:59.358 INFO 21060 --- [ main] o.s.core.annotation.AnnotationUtils : Failed to introspect annotations on class org.springframework.cloud.netflix.eureka.config.EurekaDiscoveryClientConfigServiceBootstrapConfiguration: java.lang.IllegalStateException: Could not obtain annotation attribute value for public abstract java.lang.Class[] org.springframework.boot.autoconfigure.condition.ConditionalOnClass.value()
2020-05-07 16:15:59.679 INFO 21060 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'configurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$97f8ff4f] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.1.3.RELEASE)
2020-05-07 16:16:01.722 INFO 21060 --- [ main] c.d.s.d.DescoveryserviceApplication : No active profile set, falling back to default profiles: default
2020-05-07 16:16:02.829 WARN 21060 --- [ main] o.s.boot.actuate.endpoint.EndpointId : Endpoint ID 'service-registry' contains invalid characters, please migrate to a valid format.
2020-05-07 16:16:03.242 INFO 21060 --- [ main] o.s.cloud.context.scope.GenericScope : BeanFactory id=889ab658-056e-3973-ba9c-f9fdd0f82c43
2020-05-07 16:16:03.378 INFO 21060 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$97f8ff4f] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-05-07 16:16:04.447 INFO 21060 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8010 (http)
2020-05-07 16:16:04.491 INFO 21060 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-05-07 16:16:04.491 INFO 21060 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.16]
2020-05-07 16:16:04.509 INFO 21060 --- [ main] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files\Java\jdk-11.0.6\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jdk-11.0.6/bin/server;C:/Program Files/Java/jdk-11.0.6/bin;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files\Git\cmd;;C:\Program Files\Docker\Docker\resources\bin;C:\ProgramData\DockerDesktop\version-bin;C:\Users\novatim\AppData\Local\Microsoft\WindowsApps;C:\Users\novatim\Desktop\apache-maven-3.6.3-bin\apache-maven-3.6.3\bin;C:\Program Files\Java\jdk-11.0.6\bin;;C:\Users\novatim\Desktop\eclipse-jee-2019-12-R-win32-x86_64\eclipse;;.]
2020-05-07 16:16:04.768 INFO 21060 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-05-07 16:16:04.768 INFO 21060 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 2996 ms
2020-05-07 16:16:04.935 WARN 21060 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2020-05-07 16:16:04.936 INFO 21060 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2020-05-07 16:16:04.962 INFO 21060 --- [ main] c.netflix.config.DynamicPropertyFactory : DynamicPropertyFactory is initialized with configuration sources: com.netflix.config.ConcurrentCompositeConfiguration#13ed066e
2020-05-07 16:16:06.652 INFO 21060 --- [ main] o.s.cloud.commons.util.InetUtils : Cannot determine local hostname
2020-05-07 16:16:08.337 INFO 21060 --- [ main] o.s.cloud.commons.util.InetUtils : Cannot determine local hostname
2020-05-07 16:16:08.963 WARN 21060 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2020-05-07 16:16:08.964 INFO 21060 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2020-05-07 16:16:09.222 INFO 21060 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2020-05-07 16:16:10.021 INFO 21060 --- [ main] o.s.b.a.e.web.EndpointLinksResolver : Exposing 2 endpoint(s) beneath base path '/actuator'
2020-05-07 16:16:10.174 INFO 21060 --- [ main] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING
2020-05-07 16:16:10.226 INFO 21060 --- [ main] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1
2020-05-07 16:16:10.229 INFO 21060 --- [ main] com.netflix.discovery.DiscoveryClient : Client configured to neither register nor query for data.
2020-05-07 16:16:10.243 INFO 21060 --- [ main] com.netflix.discovery.DiscoveryClient : Discovery Client initialized at timestamp 1588860970242 with initial instances count: 0
2020-05-07 16:16:10.250 INFO 21060 --- [ main] o.s.c.n.e.s.EurekaServiceRegistry : Registering application discoveryservice with eureka with status UP
2020-05-07 16:16:10.326 INFO 21060 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8010 (http) with context path ''
2020-05-07 16:16:10.333 INFO 21060 --- [ main] c.d.s.d.DescoveryserviceApplication : Started DescoveryserviceApplication in 13.391 seconds (JVM running for 14.094)
2020-05-07 16:16:17.202 INFO 21060 --- [nio-8010-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2020-05-07 16:16:17.204 INFO 21060 --- [nio-8010-exec-1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2020-05-07 16:16:17.223 INFO 21060 --- [nio-8010-exec-1] o.s.web.servlet.DispatcherServlet : Completed initialization in 19 ms
I do not know where the problem is it has been several hours that I am looking for a solution, if you have ideas do not hesitate to share them,
Thanks .

I guess you didn't add #EnableEurekaServer annotation to your main app
It should be like this
#SpringBootApplication
#EnableEurekaServer
public class DiscoveryServerApplication {
…
}

Apache Camel - Error in Code - PropertiesComponent with name properties must be defined in CamelContext to support property placeholders

I am creating simple Apache Camel Spring boot program to transfer a file from one directory to another.
I am using application.yml file for route properties.
I am getting below error -
Exception: java.lang.IllegalArgumentException: PropertiesComponent with name properties must be defined in CamelContext to support property placeholders. Property with key [startRoute] not found in properties from text: {{startRoute}}
If give route value hard coded in configure() it's working fine. But giving error on using application.xml
POM
<?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 http://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>1.5.9.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.learncamel</groupId>
<artifactId>camel-spring-boot</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>camel-spring-boot</name>
<description>Demo project for APache Camel using Spring Boot</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-spring-boot-starter</artifactId>
<version>2.20.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
application.yml
server:
port: 8096
spring:
profiles:
active: dev
---
spring:
profiles: dev
startRoute: timer:\\fileCopyTimer?delay=5s&period=10s
fromRoute: file:C:\My_Drive\Knowledge\Apache_Camel_Tutorial\data\input?delete=true&readLock=none
toRoute: file:C:\My_Drive\Knowledge\Apache_Camel_Tutorial\data\output
message: From Dev
---
spring:
profiles: stage
startRoute: timer:\\fileCopyTimer?delay=5s&period=10s
fromRoute: file:C:\My_Drive\Knowledge\Apache_Camel_Tutorial\data\input?delete=true&readLock=none
toRoute: file:C:\My_Drive\Knowledge\Apache_Camel_Tutorial\data\output
message: From Dev
---
spring:
profiles: dev
startRoute: timer:\\fileCopyTimer?delay=5s&period=10s
fromRoute: file:C:\My_Drive\Knowledge\Apache_Camel_Tutorial\data\input?delete=true&readLock=none
toRoute: file:C:\My_Drive\Knowledge\Apache_Camel_Tutorial\data\output
message: From Dev
---
Code file
package com.learncamel.camelspringboot.route;
import org.apache.camel.builder.RouteBuilder;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Component;
#Component
public class SimpleCamelRoute extends RouteBuilder{
#Autowired
Environment environment;
#Override
public void configure() throws Exception{
try {
from("{{startRoute}}")
.pollEnrich("{{fromRoute}}")
.to("{{toRoute1}}");
}catch (Exception ex){
ex.printStackTrace();
}
}
}
Main Spring run code
package com.learncamel.camelspringboot;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class CamelSpringBootApplication {
public static void main(String[] args) {
SpringApplication.run(CamelSpringBootApplication.class, args);
}
}
Error on run
"C:\Program Files\Java\jdk1.8.0_131\bin\java.exe" -javaagent:C:\My_Drive\Development_Tools\ideaIC-2019.1.3.win\lib\idea_rt.jar=56429:C:\My_Drive\Development_Tools\ideaIC-2019.1.3.win\bin -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_131\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_131\jre\lib\rt.jar;C:\My_Drive\Knowledge\Apache_Camel_Tutorial\camel-spring-boot\target\classes;C:\Users\adikumar\.m2\repository\org\springframework\boot\spring-boot-starter-web\1.5.9.RELEASE\spring-boot-starter-web-1.5.9.RELEASE.jar;C:\Users\adikumar\.m2\repository\org\springframework\boot\spring-boot-starter\1.5.9.RELEASE\spring-boot-starter-1.5.9.RELEASE.jar;C:\Users\adikumar\.m2\repository\org\springframework\boot\spring-boot\1.5.9.RELEASE\spring-boot-1.5.9.RELEASE.jar;C:\Users\adikumar\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\1.5.9.RELEASE\spring-boot-autoconfigure-1.5.9.RELEASE.jar;C:\Users\adikumar\.m2\repository\org\springframework\boot\spring-boot-starter-logging\1.5.9.RELEASE\spring-boot-starter-logging-1.5.9.RELEASE.jar;C:\Users\adikumar\.m2\repository\ch\qos\logback\logback-classic\1.1.11\logback-classic-1.1.11.jar;C:\Users\adikumar\.m2\repository\ch\qos\logback\logback-core\1.1.11\logback-core-1.1.11.jar;C:\Users\adikumar\.m2\repository\org\slf4j\jcl-over-slf4j\1.7.25\jcl-over-slf4j-1.7.25.jar;C:\Users\adikumar\.m2\repository\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;C:\Users\adikumar\.m2\repository\org\slf4j\log4j-over-slf4j\1.7.25\log4j-over-slf4j-1.7.25.jar;C:\Users\adikumar\.m2\repository\org\yaml\snakeyaml\1.17\snakeyaml-1.17.jar;C:\Users\adikumar\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\1.5.9.RELEASE\spring-boot-starter-tomcat-1.5.9.RELEASE.jar;C:\Users\adikumar\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\8.5.23\tomcat-embed-core-8.5.23.jar;C:\Users\adikumar\.m2\repository\org\apache\tomcat\tomcat-annotations-api\8.5.23\tomcat-annotations-api-8.5.23.jar;C:\Users\adikumar\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\8.5.23\tomcat-embed-el-8.5.23.jar;C:\Users\adikumar\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\8.5.23\tomcat-embed-websocket-8.5.23.jar;C:\Users\adikumar\.m2\repository\org\hibernate\hibernate-validator\5.3.6.Final\hibernate-validator-5.3.6.Final.jar;C:\Users\adikumar\.m2\repository\javax\validation\validation-api\1.1.0.Final\validation-api-1.1.0.Final.jar;C:\Users\adikumar\.m2\repository\org\jboss\logging\jboss-logging\3.3.1.Final\jboss-logging-3.3.1.Final.jar;C:\Users\adikumar\.m2\repository\com\fasterxml\classmate\1.3.4\classmate-1.3.4.jar;C:\Users\adikumar\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.8.10\jackson-databind-2.8.10.jar;C:\Users\adikumar\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.8.0\jackson-annotations-2.8.0.jar;C:\Users\adikumar\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.8.10\jackson-core-2.8.10.jar;C:\Users\adikumar\.m2\repository\org\springframework\spring-web\4.3.13.RELEASE\spring-web-4.3.13.RELEASE.jar;C:\Users\adikumar\.m2\repository\org\springframework\spring-aop\4.3.13.RELEASE\spring-aop-4.3.13.RELEASE.jar;C:\Users\adikumar\.m2\repository\org\springframework\spring-beans\4.3.13.RELEASE\spring-beans-4.3.13.RELEASE.jar;C:\Users\adikumar\.m2\repository\org\springframework\spring-context\4.3.13.RELEASE\spring-context-4.3.13.RELEASE.jar;C:\Users\adikumar\.m2\repository\org\springframework\spring-webmvc\4.3.13.RELEASE\spring-webmvc-4.3.13.RELEASE.jar;C:\Users\adikumar\.m2\repository\org\springframework\spring-expression\4.3.13.RELEASE\spring-expression-4.3.13.RELEASE.jar;C:\Users\adikumar\.m2\repository\org\apache\camel\camel-spring-boot-starter\2.20.1\camel-spring-boot-starter-2.20.1.jar;C:\Users\adikumar\.m2\repository\org\apache\camel\camel-spring-boot\2.20.1\camel-spring-boot-2.20.1.jar;C:\Users\adikumar\.m2\repository\org\apache\camel\camel-spring\2.20.1\camel-spring-2.20.1.jar;C:\Users\adikumar\.m2\repository\org\springframework\spring-tx\4.3.13.RELEASE\spring-tx-4.3.13.RELEASE.jar;C:\Users\adikumar\.m2\repository\com\sun\xml\bind\jaxb-core\2.2.11\jaxb-core-2.2.11.jar;C:\Users\adikumar\.m2\repository\com\sun\xml\bind\jaxb-impl\2.2.11\jaxb-impl-2.2.11.jar;C:\Users\adikumar\.m2\repository\org\apache\camel\camel-core-starter\2.20.1\camel-core-starter-2.20.1.jar;C:\Users\adikumar\.m2\repository\org\apache\camel\camel-core\2.20.1\camel-core-2.20.1.jar;C:\Users\adikumar\.m2\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;C:\Users\adikumar\.m2\repository\org\springframework\spring-core\4.3.13.RELEASE\spring-core-4.3.13.RELEASE.jar" com.learncamel.camelspringboot.CamelSpringBootApplication
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.9.RELEASE)
2019-07-24 11:50:00.555 INFO 13308 --- [ main] c.l.c.CamelSpringBootApplication : Starting CamelSpringBootApplication on N-20HEPF10W2TB with PID 13308 (C:\My_Drive\Knowledge\Apache_Camel_Tutorial\camel-spring-boot\target\classes started by adikumar in C:\My_Drive\Knowledge\Apache_Camel_Tutorial\camel-spring-boot)
2019-07-24 11:50:00.559 INFO 13308 --- [ main] c.l.c.CamelSpringBootApplication : The following profiles are active: dev
2019-07-24 11:50:00.676 INFO 13308 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext#3d680b5a: startup date [Wed Jul 24 11:50:00 IST 2019]; root of context hierarchy
2019-07-24 11:50:03.285 INFO 13308 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.apache.camel.spring.boot.CamelAutoConfiguration' of type [org.apache.camel.spring.boot.CamelAutoConfiguration$$EnhancerBySpringCGLIB$$c34a4622] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-07-24 11:50:05.190 INFO 13308 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8096 (http)
2019-07-24 11:50:05.208 INFO 13308 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-07-24 11:50:05.210 INFO 13308 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.23
2019-07-24 11:50:05.423 INFO 13308 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-07-24 11:50:05.423 INFO 13308 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 4747 ms
2019-07-24 11:50:05.773 INFO 13308 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2019-07-24 11:50:05.781 INFO 13308 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2019-07-24 11:50:05.782 INFO 13308 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2019-07-24 11:50:05.782 INFO 13308 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2019-07-24 11:50:05.782 INFO 13308 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2019-07-24 11:50:06.420 INFO 13308 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for #ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext#3d680b5a: startup date [Wed Jul 24 11:50:00 IST 2019]; root of context hierarchy
2019-07-24 11:50:06.538 INFO 13308 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2019-07-24 11:50:06.539 INFO 13308 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2019-07-24 11:50:06.579 INFO 13308 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2019-07-24 11:50:06.580 INFO 13308 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2019-07-24 11:50:06.676 INFO 13308 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2019-07-24 11:50:07.193 WARN 13308 --- [ main] o.a.c.i.DefaultCamelBeanPostProcessor : No CamelContext defined yet so cannot inject into bean: routesHealthCheckRepository
2019-07-24 11:50:07.663 INFO 13308 --- [ main] o.a.c.i.converter.DefaultTypeConverter : Type converters loaded (core: 192, classpath: 1)
2019-07-24 11:50:08.969 INFO 13308 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
org.apache.camel.RuntimeCamelException: java.lang.IllegalArgumentException: PropertiesComponent with name properties must be defined in CamelContext to support property placeholders. Property with key [startRoute] not found in properties from text: {{startRoute}}
at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1831)
at org.apache.camel.model.RouteDefinitionHelper.initRouteInputs(RouteDefinitionHelper.java:380)
at org.apache.camel.model.RouteDefinitionHelper.prepareRouteImp(RouteDefinitionHelper.java:298)
at org.apache.camel.model.RouteDefinitionHelper.prepareRoute(RouteDefinitionHelper.java:270)
at org.apache.camel.model.RoutesDefinition.route(RoutesDefinition.java:205)
at org.apache.camel.model.RoutesDefinition.from(RoutesDefinition.java:158)
at org.apache.camel.builder.RouteBuilder.from(RouteBuilder.java:169)
at com.learncamel.camelspringboot.route.SimpleCamelRoute.configure(SimpleCamelRoute.java:17)
at org.apache.camel.builder.RouteBuilder.checkInitialized(RouteBuilder.java:462)
at org.apache.camel.builder.RouteBuilder.configureRoutes(RouteBuilder.java:402)
at org.apache.camel.builder.RouteBuilder.addRoutesToCamelContext(RouteBuilder.java:383)
at org.apache.camel.impl.DefaultCamelContext$1.call(DefaultCamelContext.java:1032)
at org.apache.camel.impl.DefaultCamelContext$1.call(DefaultCamelContext.java:1029)
at org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:3268)
at org.apache.camel.impl.DefaultCamelContext.addRoutes(DefaultCamelContext.java:1029)
at org.apache.camel.spring.boot.RoutesCollector.onApplicationEvent(RoutesCollector.java:131)
at org.apache.camel.spring.boot.RoutesCollector.onApplicationEvent(RoutesCollector.java:57)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:393)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:347)
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:883)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
at com.learncamel.camelspringboot.CamelSpringBootApplication.main(CamelSpringBootApplication.java:11)
Caused by: java.lang.IllegalArgumentException: PropertiesComponent with name properties must be defined in CamelContext to support property placeholders. Property with key [startRoute] not found in properties from text: {{startRoute}}
at org.apache.camel.component.properties.DefaultPropertiesParser$ParsingContext.getPropertyValue(DefaultPropertiesParser.java:270)
at org.apache.camel.component.properties.DefaultPropertiesParser$ParsingContext.readProperty(DefaultPropertiesParser.java:156)
at org.apache.camel.component.properties.DefaultPropertiesParser$ParsingContext.doParse(DefaultPropertiesParser.java:115)
at org.apache.camel.component.properties.DefaultPropertiesParser$ParsingContext.parse(DefaultPropertiesParser.java:99)
at org.apache.camel.component.properties.DefaultPropertiesParser.parseUri(DefaultPropertiesParser.java:62)
at org.apache.camel.component.properties.PropertiesComponent.parseUri(PropertiesComponent.java:235)
at org.apache.camel.component.properties.PropertiesComponent.parseUri(PropertiesComponent.java:178)
at org.apache.camel.impl.DefaultCamelContext.resolvePropertyPlaceholders(DefaultCamelContext.java:2555)
at org.apache.camel.model.ProcessorDefinitionHelper.resolvePropertyPlaceholders(ProcessorDefinitionHelper.java:735)
at org.apache.camel.model.RouteDefinitionHelper.initRouteInputs(RouteDefinitionHelper.java:378)
... 30 more
2019-07-24 11:50:09.112 INFO 13308 --- [ main] o.a.camel.spring.boot.RoutesCollector : Loading additional Camel XML routes from: classpath:camel/*.xml
2019-07-24 11:50:09.113 INFO 13308 --- [ main] o.a.camel.spring.boot.RoutesCollector : Loading additional Camel XML rests from: classpath:camel-rest/*.xml
2019-07-24 11:50:09.129 INFO 13308 --- [ main] o.a.camel.spring.SpringCamelContext : Apache Camel 2.20.1 (CamelContext: camel-1) is starting
2019-07-24 11:50:09.131 INFO 13308 --- [ main] o.a.c.m.ManagedManagementStrategy : JMX is enabled
2019-07-24 11:50:09.456 INFO 13308 --- [ main] o.a.camel.spring.SpringCamelContext : StreamCaching is not in use. If using streams then its recommended to enable stream caching. See more details at http://camel.apache.org/stream-caching.html
2019-07-24 11:50:09.459 INFO 13308 --- [ main] o.a.camel.spring.SpringCamelContext : Total 0 routes, of which 0 are started
2019-07-24 11:50:09.460 INFO 13308 --- [ main] o.a.camel.spring.SpringCamelContext : Apache Camel 2.20.1 (CamelContext: camel-1) started in 0.330 seconds
2019-07-24 11:50:09.541 INFO 13308 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8096 (http)
2019-07-24 11:50:09.550 INFO 13308 --- [ main] c.l.c.CamelSpringBootApplication : Started CamelSpringBootApplication in 10.001 seconds (JVM running for 11.102)

Wrong alignment in application.yml
If want to use property as {{startRoute}}, ensure no space before property in .yml file
or use absolute path like {{spring.startRoute}}
I have tested. Issue resolved.

My spring-app doesn't receive my GET

So I've been trying to do the example from spring's official guide on connecting Spring with MySQL (https://spring.io/guides/gs/accessing-data-mysql/)
I didn't follow it 100% since I'm using STS for my overall project. The thing is when I use POSTMAN or just my browser to send data
such as :
localhost:8000/demo/add?name=First&email=someemail#someemailprovider.com
I get the error not found.
The java code is the same as in the guide . My application.properties is this:
server.port=8000
spring.jpa.hibernate.ddl-auto=create
spring.datasource.url=jdbc:mysql://localhost:3306/db_example
spring.datasource.username=springuser
spring.datasource.password=ThePassword
and my pom.xml is this
<?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
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>dbDemo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>dbDemo</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<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>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
The answer from my browser is:
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing
this as a fallback.
Tue Jul 10 21:15:52 EEST 2018
There was an unexpected error (type=Not Found, status=404).
No message available
And from postman :
{
"timestamp": "2018-07-10T18:08:28.208+0000",
"status": 404,
"error": "Not Found",
"message": "No message available",
"path": "/demo/add"
}
The log from spring's console is :
:: Spring Boot :: (v2.0.3.RELEASE)
2018-07-10 20:32:36.453 INFO 7815 --- [ main] com.example.demo.DbDemoApplication : Starting DbDemoApplication on max-kans with PID 7815 (/home/max/Desktop/Fetina/Earino/projectTL/softEngine/dbDemo/target/classes started by max in /home/max/Desktop/Fetina/Earino/projectTL/softEngine/dbDemo)
2018-07-10 20:32:36.496 INFO 7815 --- [ main] com.example.demo.DbDemoApplication : No active profile set, falling back to default profiles: default
2018-07-10 20:32:36.742 INFO 7815 --- [ main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext#2aa5fe93: startup date [Tue Jul 10 20:32:36 EEST 2018]; root of context hierarchy
2018-07-10 20:32:41.650 INFO 7815 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$5ab04215] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-07-10 20:32:42.775 INFO 7815 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8000 (http)
2018-07-10 20:32:43.344 INFO 7815 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2018-07-10 20:32:43.344 INFO 7815 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.31
2018-07-10 20:32:44.326 INFO 7815 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib]
2018-07-10 20:32:47.580 INFO 7815 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2018-07-10 20:32:47.581 INFO 7815 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 10868 ms
2018-07-10 20:32:48.187 INFO 7815 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/]
2018-07-10 20:32:48.192 INFO 7815 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-07-10 20:32:48.193 INFO 7815 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-07-10 20:32:48.193 INFO 7815 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-07-10 20:32:48.193 INFO 7815 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2018-07-10 20:32:50.090 INFO 7815 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2018-07-10 20:32:54.757 INFO 7815 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2018-07-10 20:32:55.307 INFO 7815 --- [ main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2018-07-10 20:32:55.640 INFO 7815 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2018-07-10 20:32:58.848 INFO 7815 --- [ main] org.hibernate.Version : HHH000412: Hibernate Core {5.2.17.Final}
2018-07-10 20:32:59.125 INFO 7815 --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2018-07-10 20:33:00.513 INFO 7815 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2018-07-10 20:33:02.175 INFO 7815 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
2018-07-10 20:33:03.329 INFO 7815 --- [ main] o.h.t.schema.internal.SchemaCreatorImpl : HHH000476: Executing import script 'org.hibernate.tool.schema.internal.exec.ScriptSourceInputNonExistentImpl#7a8406c2'
2018-07-10 20:33:03.331 INFO 7815 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2018-07-10 20:33:06.623 INFO 7815 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-10 20:33:08.065 INFO 7815 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for #ControllerAdvice: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext#2aa5fe93: startup date [Tue Jul 10 20:32:36 EEST 2018]; root of context hierarchy
2018-07-10 20:33:08.206 WARN 7815 --- [ main] aWebConfiguration$JpaWebMvcConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2018-07-10 20:33:08.322 INFO 7815 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-07-10 20:33:08.324 INFO 7815 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2018-07-10 20:33:08.368 INFO 7815 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-10 20:33:08.368 INFO 7815 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-10 20:33:09.610 INFO 7815 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2018-07-10 20:33:09.613 INFO 7815 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'dataSource' has been autodetected for JMX exposure
2018-07-10 20:33:09.622 INFO 7815 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located MBean 'dataSource': registering with JMX server as MBean [com.zaxxer.hikari:name=dataSource,type=HikariDataSource]
2018-07-10 20:33:10.003 INFO 7815 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8000 (http) with context path ''
2018-07-10 20:33:10.154 INFO 7815 --- [ main] com.example.demo.DbDemoApplication : Started DbDemoApplication in 35.885 seconds (JVM running for 39.933)
2018-07-10 20:34:07.354 INFO 7815 --- [nio-8000-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring FrameworkServlet 'dispatcherServlet'
2018-07-10 20:34:07.354 INFO 7815 --- [nio-8000-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started
2018-07-10 20:34:07.962 INFO 7815 --- [nio-8000-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 608 ms
My controller is pretty much identical to the one from spring's guide :
package hello;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import hello.User;
import hello.UserRepository;
#Controller // This means that this class is a Controller
#RequestMapping(path="/demo")
// This means URL's start with /demo (after Application path)
public class UserController {
#Autowired
// This means to get the bean called userRepository
// Which is auto-generated by Spring, we will use it to handle the data
private UserRepository userRepository;
#GetMapping(path="/add") // Map ONLY GET Requests
public #ResponseBody String addNewUser(#RequestParam String name,
#RequestParam String email) {
// #ResponseBody means the returned String is the response,
// not a view name
User n = new User();
n.setName(name);
n.setEmail(email);
userRepository.save(n);
return "Saved";
}
#GetMapping(path="/all")
public #ResponseBody Iterable<User> getAllUsers() {
// This returns a JSON or XML with the users
return userRepository.findAll();
}
}

Your #SpringBootApplication class is in the package com.example.demo (according to the startup log), but your #Controller is in package hello. By default, Spring Boot won't auto-discover Spring classes that are outside the package the #SpringBootApplication class is in. Either move the UserController somewhere under the com.example.demo, or add #ComponentScan annotation targeting your hello package to the main Spring Boot app class.

Java Spring Boot: How to response send redirect html to UI

I have done sample spring boot app. I do not know what I am missing.
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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>SpringBootRestEx</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
MyApplicationClass
#SpringBootApplication
public class SpringBootRestExApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootRestExApplication.class, args);
}
}
MyRestCallClass
#RestController
public class RestControllerClass {
#RequestMapping("/rest/test/")
public #ResponseBody void testOne(HttpServletResponse response) throws IOException{
response.sendRedirect("help.html");
}
}
AplicationProperyfile
server.port=8787
server.context-path=/demo
My help.html file under resource & static folder.
I am getting 404 error.
**UPDATE - 1 **
- this is my LOG.
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.4.3.RELEASE)
2016-12-30 12:49:58.781 INFO 9576 --- [ main] com.example.SpringBootRestExApplication : Starting SpringBootRestExApplication on Hydrogen with PID 9576 (D:\18062016_AceKab_WorkShop\10-11-2016_mysql_Acekab\SpringBootRestEx\target\classes started by ace in D:\18062016_AceKab_WorkShop\10-11-2016_mysql_Acekab\SpringBootRestEx)
2016-12-30 12:49:58.788 INFO 9576 --- [ main] com.example.SpringBootRestExApplication : No active profile set, falling back to default profiles: default
2016-12-30 12:49:58.940 INFO 9576 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext#1622f1b: startup date [Fri Dec 30 12:49:58 IST 2016]; root of context hierarchy
2016-12-30 12:50:02.411 INFO 9576 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8787 (http)
2016-12-30 12:50:02.438 INFO 9576 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2016-12-30 12:50:02.440 INFO 9576 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.6
2016-12-30 12:50:02.718 INFO 9576 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/demo] : Initializing Spring embedded WebApplicationContext
2016-12-30 12:50:02.719 INFO 9576 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 3788 ms
2016-12-30 12:50:03.145 INFO 9576 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2016-12-30 12:50:03.154 INFO 9576 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2016-12-30 12:50:03.155 INFO 9576 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2016-12-30 12:50:03.156 INFO 9576 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2016-12-30 12:50:03.156 INFO 9576 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2016-12-30 12:50:03.965 INFO 9576 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for #ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext#1622f1b: startup date [Fri Dec 30 12:49:58 IST 2016]; root of context hierarchy
2016-12-30 12:50:04.126 INFO 9576 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/rest/test/]}" onto public void com.example.RestControllerClass.testOne(javax.servlet.http.HttpServletResponse) throws java.io.IOException
2016-12-30 12:50:04.137 INFO 9576 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2016-12-30 12:50:04.138 INFO 9576 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2016-12-30 12:50:04.222 INFO 9576 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-12-30 12:50:04.222 INFO 9576 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-12-30 12:50:04.313 INFO 9576 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-12-30 12:50:04.628 INFO 9576 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2016-12-30 12:50:04.803 INFO 9576 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8787 (http)
2016-12-30 12:50:04.820 INFO 9576 --- [ main] com.example.SpringBootRestExApplication : Started SpringBootRestExApplication in 6.889 seconds (JVM running for 7.666)
2016-12-30 12:52:10.192 INFO 9576 --- [nio-8787-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/demo] : Initializing Spring FrameworkServlet 'dispatcherServlet'
2016-12-30 12:52:10.192 INFO 9576 --- [nio-8787-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started
2016-12-30 12:52:10.222 INFO 9576 --- [nio-8787-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 30 ms

First of all i don't understand why you use #ResponseBody a method which return type void. Remove it. Then you need to use View Resolver to show html page and if you want to redirect it you can use an approach like below:
#Controller
public class RestControllerClass {
#RequestMapping("/rest/test/")
public String testOne(HttpServletResponse response) throws IOException{
return "redirect:/help";
}
}
HelpController.java
#Controller
public class HelpController {
#RequestMapping("/help")
public String get(HttpServletResponse response) throws IOException{
return "help";
}
}
in application.properties under src/main/resources folder.
spring.mvc.view.prefix=/static/
spring.mvc.view.suffix=.html

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