Develop Reference

Issue with Spring and MongoDB Atlas connection: Network is unreachable

I'm creating a simple web app for class that will use a MongoDB Atlas database, but I can't make any network connection. I have a user account set up, have 0.0.0.0/0 whitelisted, and believe I have the code setup correctly for a connection. When I try running to test the app, I get java.net.SocketException: Network is unreachable all over the place. With the console log below, does anyone see an obvious error? I have tried the ports to make sure they are open and haven't found an error, not sure why the connection totally fails.
application.properties:
# MongoDB Atlas - Connection
spring.data.mongodb.database=bookclub
spring.data.mongodb.uri=mongodb+srv://bookclub_user:<pwd>#cluster0.ne3yt.mongodb.net/<database>?retryWrites=true&w=majority
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>2.5.4</version>
</parent>
<groupId>com.bookclub</groupId>
<artifactId>bookclub</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>bookclub</name>
<description>CIS 530 Bookclub Project</description>
<properties>
<java.version>16</java.version>
</properties>
<dependencies>
<!-- Form validation fields -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
<version>2.5.5</version>
</dependency>
<!-- Thymeleaf template engine -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<!-- MongoDB Driver -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<!-- Spring Web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- Spring Test -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- Spring devtools -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.jetbrains</groupId>
<artifactId>annotations</artifactId>
<version>22.0.0</version>
<scope>compile</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
NEW console output:
:: Spring Boot :: (v2.5.4)
2021-10-04 04:52:24.130 INFO 36899 --- [ restartedMain] com.bookclub.BookclubApplication : Starting BookclubApplication using Java 16.0.2 on C02YPFQ9LVCG with PID 36899 (/Users/abecthold/Courses/cis-530/bookclub/target/classes started by abecthold in /Users/abecthold/Courses/cis-530/bookclub)
2021-10-04 04:52:24.132 INFO 36899 --- [ restartedMain] com.bookclub.BookclubApplication : No active profile set, falling back to default profiles: default
2021-10-04 04:52:24.169 INFO 36899 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2021-10-04 04:52:24.169 INFO 36899 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2021-10-04 04:52:24.574 INFO 36899 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data MongoDB repositories in DEFAULT mode.
2021-10-04 04:52:24.582 INFO 36899 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 6 ms. Found 0 MongoDB repository interfaces.
2021-10-04 04:52:24.914 INFO 36899 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2021-10-04 04:52:24.921 INFO 36899 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2021-10-04 04:52:24.921 INFO 36899 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.52]
2021-10-04 04:52:24.968 INFO 36899 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2021-10-04 04:52:24.968 INFO 36899 --- [ restartedMain] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 798 ms
2021-10-04 04:52:25.059 INFO 36899 --- [ restartedMain] org.mongodb.driver.cluster : Cluster created with settings {hosts=[cluster0.ne3yt.mongodb.net:27017], mode=SINGLE, requiredClusterType=UNKNOWN, serverSelectionTimeout='30000 ms'}
2021-10-04 04:52:25.127 INFO 36899 --- [ngodb.net:27017] org.mongodb.driver.cluster : Exception in monitor thread while connecting to server cluster0.ne3yt.mongodb.net:27017
com.mongodb.MongoSocketException: cluster0.ne3yt.mongodb.net: nodename nor servname provided, or not known
at com.mongodb.ServerAddress.getSocketAddresses(ServerAddress.java:211) ~[mongodb-driver-core-4.2.3.jar:na]
at com.mongodb.internal.connection.SocketStream.initializeSocket(SocketStream.java:75) ~[mongodb-driver-core-4.2.3.jar:na]
at com.mongodb.internal.connection.SocketStream.open(SocketStream.java:65) ~[mongodb-driver-core-4.2.3.jar:na]
at com.mongodb.internal.connection.InternalStreamConnection.open(InternalStreamConnection.java:143) ~[mongodb-driver-core-4.2.3.jar:na]
at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.lookupServerDescription(DefaultServerMonitor.java:188) ~[mongodb-driver-core-4.2.3.jar:na]
at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:144) ~[mongodb-driver-core-4.2.3.jar:na]
at java.base/java.lang.Thread.run(Thread.java:831) ~[na:na]
Caused by: java.net.UnknownHostException: cluster0.ne3yt.mongodb.net: nodename nor servname provided, or not known
at java.base/java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) ~[na:na]
at java.base/java.net.InetAddress$PlatformNameService.lookupAllHostAddr(InetAddress.java:932) ~[na:na]
at java.base/java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1517) ~[na:na]
at java.base/java.net.InetAddress$NameServiceAddresses.get(InetAddress.java:851) ~[na:na]
at java.base/java.net.InetAddress.getAllByName0(InetAddress.java:1507) ~[na:na]
at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1366) ~[na:na]
at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1300) ~[na:na]
at com.mongodb.ServerAddress.getSocketAddresses(ServerAddress.java:203) ~[mongodb-driver-core-4.2.3.jar:na]
... 6 common frames omitted
2021-10-04 04:52:25.185 INFO 36899 --- [ restartedMain] o.s.b.d.a.OptionalLiveReloadServer : LiveReload server is running on port 35729
2021-10-04 04:52:25.394 INFO 36899 --- [ restartedMain] o.s.b.a.w.s.WelcomePageHandlerMapping : Adding welcome page template: index
2021-10-04 04:52:25.485 INFO 36899 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2021-10-04 04:52:25.493 INFO 36899 --- [ restartedMain] com.bookclub.BookclubApplication : Started BookclubApplication in 1.608 seconds (JVM running for 2.09)
2021-10-04 04:52:35.129 INFO 36899 --- [ngodb.net:27017] org.mongodb.driver.cluster : Exception in monitor thread while connecting to server cluster0.ne3yt.mongodb.net:27017
com.mongodb.MongoSocketException: cluster0.ne3yt.mongodb.net
at com.mongodb.ServerAddress.getSocketAddresses(ServerAddress.java:211) ~[mongodb-driver-core-4.2.3.jar:na]
at com.mongodb.internal.connection.SocketStream.initializeSocket(SocketStream.java:75) ~[mongodb-driver-core-4.2.3.jar:na]
at com.mongodb.internal.connection.SocketStream.open(SocketStream.java:65) ~[mongodb-driver-core-4.2.3.jar:na]
at com.mongodb.internal.connection.InternalStreamConnection.open(InternalStreamConnection.java:143) ~[mongodb-driver-core-4.2.3.jar:na]
at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.lookupServerDescription(DefaultServerMonitor.java:188) ~[mongodb-driver-core-4.2.3.jar:na]
at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:144) ~[mongodb-driver-core-4.2.3.jar:na]
at java.base/java.lang.Thread.run(Thread.java:831) ~[na:na]
Caused by: java.net.UnknownHostException: cluster0.ne3yt.mongodb.net
at java.base/java.net.InetAddress$CachedAddresses.get(InetAddress.java:800) ~[na:na]
at java.base/java.net.InetAddress$NameServiceAddresses.get(InetAddress.java:886) ~[na:na]
at java.base/java.net.InetAddress.getAllByName0(InetAddress.java:1507) ~[na:na]
at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1366) ~[na:na]
at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1300) ~[na:na]
at com.mongodb.ServerAddress.getSocketAddresses(ServerAddress.java:203) ~[mongodb-driver-core-4.2.3.jar:na]
... 6 common frames omitted
New errors on web view when trying to connect through the app:
There was an unexpected error (type=Internal Server Error, status=500).
Timed out after 30000 ms while waiting to connect. Client view of cluster state is {type=UNKNOWN, servers=[{address=cluster0.ne3yt.mongodb.net:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketException: cluster0.ne3yt.mongodb.net}, caused by {java.net.UnknownHostException: cluster0.ne3yt.mongodb.net}}]; nested exception is com.mongodb.MongoTimeoutException: Timed out after 30000 ms while waiting to connect. Client view of cluster state is {type=UNKNOWN, servers=[{address=cluster0.ne3yt.mongodb.net:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketException: cluster0.ne3yt.mongodb.net}, caused by {java.net.UnknownHostException: cluster0.ne3yt.mongodb.net}}]
org.springframework.dao.DataAccessResourceFailureException: Timed out after 30000 ms while waiting to connect. Client view of cluster state is {type=UNKNOWN, servers=[{address=cluster0.ne3yt.mongodb.net:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketException: cluster0.ne3yt.mongodb.net}, caused by {java.net.UnknownHostException: cluster0.ne3yt.mongodb.net}}]; nested exception is com.mongodb.MongoTimeoutException: Timed out after 30000 ms while waiting to connect. Client view of cluster state is {type=UNKNOWN, servers=[{address=cluster0.ne3yt.mongodb.net:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketException: cluster0.ne3yt.mongodb.net}, caused by {java.net.UnknownHostException: cluster0.ne3yt.mongodb.net}}
Caused by: com.mongodb.MongoTimeoutException: Timed out after 30000 ms while waiting to connect. Client view of cluster state is {type=UNKNOWN, servers=[{address=cluster0.ne3yt.mongodb.net:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketException: cluster0.ne3yt.mongodb.net}, caused by {java.net.UnknownHostException: cluster0.ne3yt.mongodb.net}}]

How to debug Springboot "Failed to start bean 'webServerStartStop'... Unable to start embedded Tomcat server on Digital Ocean droplet

I'm trying to run a Spring Boot application with HTTPS enabled on the Digital Ocean droplet. The application ran previously with no issues until a recent restart from the server.
I keep getting "Failed to start bean 'webServerStartStop'... Unable to start embedded Tomcat server" error.
How can I start to debug this? I tried to capture the output log from the server in a .txt file, and this is the output.
Things I have tried:
Rolling back to a previous app version
Updating MySQL version
Updating server
I'm running:
Java 11 - jar app
MySQL v8.0.25 Community Server
2021-07-09 04:04:37.224 INFO 9278 --- [ task-1] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform] 2021-07-09 04:04:37.238 INFO 9278 --- [ task-1] j.LocalContainerEntityManagerFactoryBean
: Initialized JPA EntityManagerFactory for persistence unit 'default' 2021-07-09 04:04:40.570 INFO 9278 --- [ main] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: OrRequestMatcher [requestMatchers=[Ant [pattern='/oauth/token'], Ant [pattern='/oauth/token_key'],
Ant [pattern='/oauth/check_token']]], [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter#4248b963, org.springframework.security.web.context.SecurityContextPersistenceFilter#1dc76fa1, org.springframework.security.web.header.HeaderWriterFilter#2f508f3c,
org.springframework.security.web.authentication.logout.LogoutFilter#ad9e63e, org.springframework.security.web.authentication.www.BasicAuthenticationFilter#3abfe845, org.springframework.security.web.savedrequest.RequestCacheAwareFilter#33d53216, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter#7808f638,
org.springframework.security.web.authentication.AnonymousAuthenticationFilter#7f08caf, org.springframework.security.web.session.SessionManagementFilter#2459319c, org.springframework.security.web.access.ExceptionTranslationFilter#71f0b72e, org.springframework.security.web.access.intercept.FilterSecurityInterceptor#2650f79]
2021-07-09 04:04:40.607 INFO 9278 --- [ main] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfiguration$NotOAuthRequestMatcher#7be3a9ce, [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter#37d871c2,
org.springframework.security.web.context.SecurityContextPersistenceFilter#2c0b4c83, org.springframework.security.web.header.HeaderWriterFilter#4893b344, org.springframework.web.filter.CorsFilter#3baf6936, org.springframework.security.web.authentication.logout.LogoutFilter#3bfc6a5e,
org.springframework.security.oauth2.provider.authentication.OAuth2AuthenticationProcessingFilter#62db0521, org.springframework.security.web.savedrequest.RequestCacheAwareFilter#78525ef9, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter#2d0ecb24,
org.springframework.security.web.authentication.AnonymousAuthenticationFilter#285f38f6, org.springframework.security.web.session.SessionManagementFilter#53a665ad, org.springframework.security.web.access.ExceptionTranslationFilter#249e0271, org.springframework.security.web.access.intercept.FilterSecurityInterceptor#4acb2510]
2021-07-09 04:04:40.610 INFO 9278 --- [ main] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: any request, [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter#27b2faa6, org.springframework.security.web.context.SecurityContextPersistenceFilter#57c47a9e,
org.springframework.security.web.header.HeaderWriterFilter#4eed2acf, org.springframework.security.web.authentication.logout.LogoutFilter#61d84e08, org.springframework.security.web.savedrequest.RequestCacheAwareFilter#642505c7, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter#4339e0de,
org.springframework.security.web.authentication.AnonymousAuthenticationFilter#6428591a, org.springframework.security.web.session.SessionManagementFilter#36fc05ff, org.springframework.security.web.access.ExceptionTranslationFilter#476e8796, org.springframework.security.web.access.intercept.FilterSecurityInterceptor#715d6168]
2021-07-09 04:04:40.779 WARN 9278 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Failed to start bean 'webServerStartStop';
nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat server 2021-07-09 04:04:40.784 INFO 9278 --- [ main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence
unit 'default' 2021-07-09 04:04:40.785 INFO 9278 --- [ main] .SchemaDropperImpl$DelayedDropActionImpl : HHH000477: Starting delayed evictData of schema as part of SessionFactory shut-down' 2021-07-09 04:04:40.786 DEBUG 9278 --- [ main] org.hibernate.SQL
: alter table contacts drop foreign key FKna8bddygr3l3kq1imghgcskt8 2021-07-09 04:04:40.808 DEBUG 9278 --- [ main] org.hibernate.SQL : alter table leads drop foreign key FK50ynw1akb9fok4ronueu0efpk 2021-07-09 04:04:40.934 DEBUG 9278 --- [ main] org.hibernate.SQL
: alter table leads drop foreign key FK10u8b7klywjncgkn7xffx7ncu 2021-07-09 04:04:41.033 DEBUG 9278 --- [ main] org.hibernate.SQL : alter table leads_notes drop foreign key FKhpoad9uf9y5lh6nv7iqb06uk2 2021-07-09 04:04:41.065 DEBUG 9278 --- [ main] org.hibernate.SQL
: alter table leads_notes drop foreign key FK6tw7yuipyu91x1d4csegdumpt 2021-07-09 04:04:41.093 DEBUG 9278 --- [ main] org.hibernate.SQL : alter table submissions drop foreign key FKpy8k2vjp2ax1glqn4tc77f362 2021-07-09 04:04:41.169 DEBUG 9278 --- [ main]
org.hibernate.SQL : alter table submissions drop foreign key FKhwyuy355rlq3e0d1lw5nxywum 2021-07-09 04:04:41.196 DEBUG 9278 --- [ main] org.hibernate.SQL : alter table submissions drop foreign key FKhfixvturyi8nqcvr8qbujkmmd 2021-07-09 04:04:41.227 DEBUG
9278 --- [ main] org.hibernate.SQL : alter table submissions drop foreign key FKaddc6b566b2j07ndp34akltik 2021-07-09 04:04:41.252 DEBUG 9278 --- [ main] org.hibernate.SQL : alter table users drop foreign key FKin8gn4o1hpiwe6qe4ey7ykwq7 2021-07-09 04:04:41.300
DEBUG 9278 --- [ main] org.hibernate.SQL : alter table users_roles drop foreign key FKa62j07k5mhgifpp955h37ponj 2021-07-09 04:04:41.331 DEBUG 9278 --- [ main] org.hibernate.SQL : alter table users_roles drop foreign key FK2o0jvgh89lemvvo17cbqvdxaa 2021-07-09
04:04:41.353 DEBUG 9278 --- [ main] org.hibernate.SQL : drop table if exists categories 2021-07-09 04:04:41.361 DEBUG 9278 --- [ main] org.hibernate.SQL : drop table if exists companies 2021-07-09 04:04:41.377 DEBUG 9278 --- [ main] org.hibernate.SQL
: drop table if exists contacts 2021-07-09 04:04:41.397 DEBUG 9278 --- [ main] org.hibernate.SQL : drop table if exists leads 2021-07-09 04:04:41.446 DEBUG 9278 --- [ main] org.hibernate.SQL : drop table if exists leads_notes 2021-07-09 04:04:41.465 DEBUG
9278 --- [ main] org.hibernate.SQL : drop table if exists leads_status 2021-07-09 04:04:41.474 DEBUG 9278 --- [ main] org.hibernate.SQL : drop table if exists products 2021-07-09 04:04:41.482 DEBUG 9278 --- [ main] org.hibernate.SQL : drop table if exists
roles 2021-07-09 04:04:41.493 DEBUG 9278 --- [ main] org.hibernate.SQL : drop table if exists submissions 2021-07-09 04:04:41.503 DEBUG 9278 --- [ main] org.hibernate.SQL : drop table if exists submissions_status 2021-07-09 04:04:41.517 DEBUG 9278 ---
[ main] org.hibernate.SQL : drop table if exists users 2021-07-09 04:04:41.537 DEBUG 9278 --- [ main] org.hibernate.SQL : drop table if exists users_roles 2021-07-09 04:04:41.560 INFO 9278 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting
down ExecutorService 'applicationTaskExecutor' 2021-07-09 04:04:41.564 INFO 9278 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated... 2021-07-09 04:04:41.585 INFO 9278 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1
- Shutdown completed. 2021-07-09 04:04:41.599 INFO 9278 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat] 2021-07-09 04:04:41.636 INFO 9278 --- [ main] ConditionEvaluationReportLoggingListener : Error starting ApplicationContext.
To display the conditions report re-run your application with 'debug' enabled. 2021-07-09 04:04:41.652 ERROR 9278 --- [ main] o.s.boot.SpringApplication : Application run failed org.springframework.context.ApplicationContextException: Failed to start
bean 'webServerStartStop'; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat server at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:185)
~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:53) ~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:360)
~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:158) ~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:122)
~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:894) ~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:553)
~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758)
~[spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
~[spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237)
~[spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE] at com.maxwelton.investorportal.InvestorPortalBackendApplication.main(InvestorPortalBackendApplication.java:10)
~[classes!/:0.0.1-SNAPSHOT] 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.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49) ~[investor-portal-backend-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT] at org.springframework.boot.loader.Launcher.launch(Launcher.java:109)
~[investor-portal-backend-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT] at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) ~[investor-portal-backend-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT] at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:88)
~[investor-portal-backend-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT] Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat server at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.start(TomcatWebServer.java:229)
~[spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE] at org.springframework.boot.web.servlet.context.WebServerStartStopLifecycle.start(WebServerStartStopLifecycle.java:43) ~[spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182)
~[spring-context-5.2.6.RELEASE.jar!/:5.2.6.RELEASE] ... 22 common frames omitted Caused by: java.lang.IllegalArgumentException: standardService.connector.startFailed at org.apache.catalina.core.StandardService.addConnector(StandardService.java:231) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.addPreviouslyRemovedConnectors(TomcatWebServer.java:282) ~[spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.start(TomcatWebServer.java:213)
~[spring-boot-2.3.0.RELEASE.jar!/:2.3.0.RELEASE] ... 24 common frames omitted Caused by: org.apache.catalina.LifecycleException: Protocol handler start failed at org.apache.catalina.connector.Connector.startInternal(Connector.java:1058) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35] at org.apache.catalina.core.StandardService.addConnector(StandardService.java:227) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35] ... 26 common
frames omitted Caused by: java.lang.IllegalArgumentException: None of the [protocols] specified are supported by the SSL engine : [[TSLv1.2]] at org.apache.tomcat.util.net.SSLUtilBase.getEnabled(SSLUtilBase.java:151) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35]
at org.apache.tomcat.util.net.SSLUtilBase.
<init>(SSLUtilBase.java:109) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35] at org.apache.tomcat.util.net.SSLUtilBase.
<init>(SSLUtilBase.java:83) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35] at org.apache.tomcat.util.net.openssl.OpenSSLUtil.
<init>(OpenSSLUtil.java:42) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35] at org.apache.tomcat.util.net.openssl.OpenSSLImplementation.getSSLUtil(OpenSSLImplementation.java:36) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35] at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:88)
~[tomcat-embed-core-9.0.35.jar!/:9.0.35] at org.apache.tomcat.util.net.AbstractJsseEndpoint.initialiseSsl(AbstractJsseEndpoint.java:71) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35] at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:216)
~[tomcat-embed-core-9.0.35.jar!/:9.0.35] at org.apache.tomcat.util.net.AbstractEndpoint.bindWithCleanup(AbstractEndpoint.java:1141) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35] at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:1227)
~[tomcat-embed-core-9.0.35.jar!/:9.0.35] at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:592) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35] at org.apache.catalina.connector.Connector.startInternal(Connector.java:1055) ~[tomcat-embed-core-9.0.35.jar!/:9.0.35]
... 28 common frames omitted
My DB properties are
spring.datasource.url=jdbc:mysql://localhost/db_investor_portal?useLegacyDatetimeCode=false&serverTimezone=UTC&useSSL=true
spring.datasource.username=**********
spring.datasource.password=**********
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.jpa.database-platform=org.hibernate.dialect.MySQL8Dialect
spring.jpa.hibernate.ddl-auto=create-drop
spring.jackson.serialization.fail-on-empty-beans=false
logging.level.org.hibernate.SQL=debug
spring.servlet.multipart.max-file-size=10MB
spring.servlet.multipart.max-request-size=10MB
#SpringBoot SSL configuration for Digital Ocean
#server.ssl.enabled=true
#server.port=8443
#server.ssl.key-store=/etc/letsencrypt/live/*****
#server.ssl.key-store-password=***********
#server.ssl.key-store-type=PKCS12
#server.ssl.protocol=TLS
#server.ssl.enabled-protocols=TSLv1.2
#server.ssl.ciphers=TSL_AES_256_GCM_SHA384, TLS_CHACHA20_POLY1305_SHA256, TLS_AES_128_GCM_SHA256
And my 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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.maxwelton.investorportal</groupId>
<artifactId>investor-portal-backend</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>investor-portal-backend</name>
<packaging>jar</packaging>
<description>Backend for MW Investor Portal</description>
<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-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
<version>8.0.24</version><!--$NO-MVN-MAN-VER$-->
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.security.oauth/spring-security-oauth2 -->
<dependency>
<groupId>org.springframework.security.oauth</groupId>
<artifactId>spring-security-oauth2</artifactId>
<version>2.3.5.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.security/spring-security-jwt -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-jwt</artifactId>
<version>1.0.10.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.xml.bind/jaxb-api -->
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.glassfish.jaxb/jaxb-runtime -->
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
<mainClass>${start-class}</mainClass>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>com.maxwelton.investorportal.InvestorPortalBackendApplication</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

The error says: None of the [protocols] specified are supported by the SSL engine : [[TSLv1.2]]
You have a typo in protocol name TSLv1.2 -> TLSv1.2
Also, there is a typo in cipher name, it must be TLS_AES_256_GCM_SHA384

Spring Boot embedded Tomcat server not starting in intellij idea

I am facing issue while running my newly created spring boot application using spring initializer.
The embedded tomcat is failing to start with below error
org.springframework.context.ApplicationContextException: Failed to
start bean 'webServerStartStop'; nested exception is
org.springframework.boot.web.server.WebServerException: Unable to
start embedded Tomcat server
Below is the full exception stack trace message while running the application
SnapShooter listening on port 57894
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.4.4)
2021-04-25 11:48:44.048 INFO 2372 --- [ main] e.T.TransactionManagementBootApplication : Starting TransactionManagementBootApplication using Java 1.8.0_212 on DESKTOP-8UK0JH5 with PID 2372 (D:\core-java-practice-programs\Gradle_Practice\TransactionManagementBoot\target\classes started by dell in D:\core-java-practice-programs\Gradle_Practice)
2021-04-25 11:48:44.051 INFO 2372 --- [ main] e.T.TransactionManagementBootApplication : No active profile set, falling back to default profiles: default
2021-04-25 11:48:44.866 INFO 2372 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2021-04-25 11:48:44.880 INFO 2372 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 5 ms. Found 0 JPA repository interfaces.
2021-04-25 11:48:45.827 INFO 2372 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8085 (http)
2021-04-25 11:48:45.837 INFO 2372 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2021-04-25 11:48:45.837 INFO 2372 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.44]
2021-04-25 11:48:45.980 INFO 2372 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2021-04-25 11:48:45.980 INFO 2372 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1865 ms
2021-04-25 11:48:46.028 INFO 2372 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2021-04-25 11:48:46.195 INFO 2372 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2021-04-25 11:48:46.202 INFO 2372 --- [ main] o.s.b.a.h2.H2ConsoleAutoConfiguration : H2 console available at '/h2-console'. Database available at 'jdbc:h2:mem:ashok'
2021-04-25 11:48:46.448 INFO 2372 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2021-04-25 11:48:46.502 INFO 2372 --- [ main] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.4.29.Final
2021-04-25 11:48:46.616 INFO 2372 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2021-04-25 11:48:46.722 INFO 2372 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
2021-04-25 11:48:47.222 INFO 2372 --- [ main] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2021-04-25 11:48:47.231 INFO 2372 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2021-04-25 11:48:47.279 WARN 2372 --- [ main] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2021-04-25 11:48:47.414 INFO 2372 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2021-04-25 11:48:47.660 INFO 2372 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Marking servlet [jsp] as unavailable
2021-04-25 11:48:47.662 WARN 2372 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Failed to start bean 'webServerStartStop'; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat server
2021-04-25 11:48:47.664 INFO 2372 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'applicationTaskExecutor'
2021-04-25 11:48:47.664 INFO 2372 --- [ main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2021-04-25 11:48:47.664 INFO 2372 --- [ main] .SchemaDropperImpl$DelayedDropActionImpl : HHH000477: Starting delayed evictData of schema as part of SessionFactory shut-down'
2021-04-25 11:48:47.670 INFO 2372 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2021-04-25 11:48:47.671 INFO 2372 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
2021-04-25 11:48:48.013 INFO 2372 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2021-04-25 11:48:48.041 INFO 2372 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-04-25 11:48:48.056 ERROR 2372 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.context.ApplicationContextException: Failed to start bean 'webServerStartStop'; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat server
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:181) ~[spring-context-5.3.5.jar:5.3.5]
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54) ~[spring-context-5.3.5.jar:5.3.5]
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356) ~[spring-context-5.3.5.jar:5.3.5]
at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_212]
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155) ~[spring-context-5.3.5.jar:5.3.5]
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123) ~[spring-context-5.3.5.jar:5.3.5]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:935) ~[spring-context-5.3.5.jar:5.3.5]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.5.jar:5.3.5]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.4.jar:2.4.4]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:769) [spring-boot-2.4.4.jar:2.4.4]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) [spring-boot-2.4.4.jar:2.4.4]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) [spring-boot-2.4.4.jar:2.4.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) [spring-boot-2.4.4.jar:2.4.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1313) [spring-boot-2.4.4.jar:2.4.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1302) [spring-boot-2.4.4.jar:2.4.4]
at com.example.TransactionManagementBoot.TransactionManagementBootApplication.main(TransactionManagementBootApplication.java:10) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_212]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_212]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_212]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_212]
at com.intellij.uiDesigner.snapShooter.SnapShooter.main(SnapShooter.java:58) [uiDesigner.jar:na]
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat server
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.start(TomcatWebServer.java:229) ~[spring-boot-2.4.4.jar:2.4.4]
at org.springframework.boot.web.servlet.context.WebServerStartStopLifecycle.start(WebServerStartStopLifecycle.java:43) ~[spring-boot-2.4.4.jar:2.4.4]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) ~[spring-context-5.3.5.jar:5.3.5]
... 20 common frames omitted
Caused by: org.springframework.boot.web.server.WebServerException: Servlet [jsp] in web application [] threw load() exception
at org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedContext.load(TomcatEmbeddedContext.java:87) ~[spring-boot-2.4.4.jar:2.4.4]
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184) ~[na:1.8.0_212]
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382) ~[na:1.8.0_212]
at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580) ~[na:1.8.0_212]
at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:270) ~[na:1.8.0_212]
at java.util.TreeMap$ValueSpliterator.forEachRemaining(TreeMap.java:2897) ~[na:1.8.0_212]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[na:1.8.0_212]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[na:1.8.0_212]
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151) ~[na:1.8.0_212]
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174) ~[na:1.8.0_212]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_212]
at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418) ~[na:1.8.0_212]
at org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedContext.lambda$deferredLoadOnStartup$0(TomcatEmbeddedContext.java:65) ~[spring-boot-2.4.4.jar:2.4.4]
at org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedContext.doWithThreadContextClassLoader(TomcatEmbeddedContext.java:106) ~[spring-boot-2.4.4.jar:2.4.4]
at org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedContext.deferredLoadOnStartup(TomcatEmbeddedContext.java:64) ~[spring-boot-2.4.4.jar:2.4.4]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.performDeferredLoadOnStartup(TomcatWebServer.java:305) ~[spring-boot-2.4.4.jar:2.4.4]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.start(TomcatWebServer.java:216) ~[spring-boot-2.4.4.jar:2.4.4]
... 22 common frames omitted
Caused by: javax.servlet.ServletException: Class [org.apache.jasper.servlet.JspServlet] is not a Servlet
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1047) ~[tomcat-embed-core-9.0.44.jar:9.0.44]
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:983) ~[tomcat-embed-core-9.0.44.jar:9.0.44]
at org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedContext.load(TomcatEmbeddedContext.java:82) ~[spring-boot-2.4.4.jar:2.4.4]
... 38 common frames omitted
Caused by: java.lang.ClassCastException: org.apache.jasper.servlet.JspServlet cannot be cast to javax.servlet.Servlet
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1042) ~[tomcat-embed-core-9.0.44.jar:9.0.44]
... 40 common frames omitted
Process finished with exit code 1
My Pom.xml file is as below
<?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>2.4.4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>TransactionManagementBoot</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>TransactionManagementBoot</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jasper</artifactId>
<version>10.0.4</version>
</dependency>
<dependency>
<groupId>jakarta.servlet.jsp</groupId>
<artifactId>jakarta.servlet.jsp-api</artifactId>
<version>3.0.0-M1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
My Run config is as below
Run Config Snapshot
Any help will be highly appreciated

If you want to use embedded tomcat in spring boot, you must change your dependency libriary tomcat-jasper to tomcat-embed-jasper.
There is spring-boot-starter-tomcat in spring-boot-starter-web. you can see here.
There is tomcat-embed-core in spring-boot-starter-tomcat to use embedded tomcat. you can see here.
embed-jaspser which includes dependency with tomcat-embed-core. you can see here.
The tomcat-jasper you used is unnecessary because it doesn't include with dependency tomcat-embed-core. you can see here.

The version of JSP that comes with Tomcat 10 is not compatible with the embedded Tomcat 9: Tomcat 9 is a Servlet 4.0 servlet container, while Tomcat 10 is a Servlet 5.0 servlet container (cf. this question).
Therefore you should use a version of Jasper compatible with your version of Tomcat. Since spring-boot-starter-parent manages the versions of Tomcat dependencies, just delete the <version> property:
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
and remove the jakarta.servlet.jsp-api dependency.
Edit: Remark also that the scope of tomcat-embed-jasper should be provided so Spring Boot will not package it into WEB-INF/lib (it will put it into WEB-INF/lib-provided instead) and you will not encounter version conflicts if you deploy the project to an external Tomcat.
You can find the list of artifacts for which Spring Boot manages the versions in the spring-boot-dependencies POM.

I had the same problem. I dont know why but when I put spring-boot-starter-web dependency first in the dependency list in the pom file it got resolved on its own! Please confirm if this works for anyone else too.

JAXB ClassNotFoundException Building Spring Boot App 2.2.0 with Java 11

I've created a Spring Boot application using version 2.2.0.BUILD-SNAPSHOT with Java 11 (POM below):
<?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>2.2.0.BUILD-SNAPSHOT</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.mycompany</groupId>
<artifactId>Eureka-Service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Eureka-Service</name>
<description>Spring Boot Eureka Service</description>
<properties>
<java.version>11</java.version>
<spring-cloud.version>Greenwich.BUILD-SNAPSHOT</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</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>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</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-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</pluginRepository>
</pluginRepositories>
</project>
When the app starts up, it throws this exception:
2018-12-30 14:09:43.584 INFO 1305 --- [ main]
c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec
XStreamXml
2018-12-30 14:09:43.584 INFO 1305 --- [ main]
c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec
XStreamXml
2018-12-30 14:09:43.710 ERROR 1305 --- [ main] c.s.j.s.i.w.WadlApplicationContextImpl : Implementation of JAXB-API has not been found on module path or classpath.
javax.xml.bind.JAXBException: Implementation of JAXB-API has not been found on module path or classpath.
at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:177) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.ContextFinder.find(ContextFinder.java:364) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:508) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:465) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:366) ~[jaxb-api-2.3.1.jar:2.3.0]
at com.sun.jersey.server.impl.wadl.WadlApplicationContextImpl.<init>(WadlApplicationContextImpl.java:107) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.wadl.WadlFactory.init(WadlFactory.java:100) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.RootResourceUriRules.initWadl(RootResourceUriRules.java:169) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.RootResourceUriRules.<init>(RootResourceUriRules.java:106) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1359) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.WebApplicationImpl.access$700(WebApplicationImpl.java:180) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:799) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:795) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193) ~[jersey-core-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:795) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:790) ~[jersey-server-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:509) ~[jersey-servlet-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:339) ~[jersey-servlet-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605) ~[jersey-servlet-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:207) ~[jersey-servlet-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:394) ~[jersey-servlet-1.19.1.jar:1.19.1]
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:744) ~[jersey-servlet-1.19.1.jar:1.19.1]
at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:270) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:106) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4511) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5157) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1382) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1372) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
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-9.0.14.jar:9.0.14]
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na]
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:907) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:831) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1382) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1372) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
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-9.0.14.jar:9.0.14]
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na]
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:907) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:423) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:933) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.apache.catalina.startup.Tomcat.start(Tomcat.java:398) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:106) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:86) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:414) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:174) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:181) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:154) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:540) ~[spring-context-5.1.4.BUILD-SNAPSHOT.jar:5.1.4.BUILD-SNAPSHOT]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at com.orbis.EurekaServiceApplication.main(EurekaServiceApplication.java:13) ~[classes/:na]
Caused by: java.lang.ClassNotFoundException: com.sun.xml.internal.bind.v2.ContextFactory
at org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedWebappClassLoader.loadClass(TomcatEmbeddedWebappClassLoader.java:70) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1173) ~[tomcat-embed-core-9.0.14.jar:9.0.14]
at javax.xml.bind.ServiceLoaderUtil.nullSafeLoadClass(ServiceLoaderUtil.java:122) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.ServiceLoaderUtil.safeLoadClass(ServiceLoaderUtil.java:155) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:174) ~[jaxb-api-2.3.1.jar:2.3.0]
... 61 common frames omitted
2018-12-30 14:09:43.790 WARN 1305 --- [ main] o.s.c.n.a.ArchaiusAutoConfiguration : No spring.application.name found, defaulting to 'application'
2018-12-30 14:09:43.790 WARN 1305 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2018-12-30 14:09:43.791 INFO 1305 --- [ 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.
2018-12-30 14:09:43.922 INFO 1305 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2018-12-30 14:09:44.330 INFO 1305 --- [ main] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING
2018-12-30 14:09:44.368 INFO 1305 --- [ main] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1
2018-12-30 14:09:44.368 INFO 1305 --- [ main] com.netflix.discovery.DiscoveryClient : Client configured to neither register nor query for data.
2018-12-30 14:09:44.378 INFO 1305 --- [ main] com.netflix.discovery.DiscoveryClient : Discovery Client initialized at timestamp 1546178984375 with initial instances count: 0
2018-12-30 14:09:44.405 INFO 1305 --- [ main] c.n.eureka.DefaultEurekaServerContext : Initializing ...
2018-12-30 14:09:44.406 INFO 1305 --- [ main] c.n.eureka.cluster.PeerEurekaNodes : Adding new peer nodes [http://localhost:8761/eureka/]
2018-12-30 14:09:44.583 INFO 1305 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2018-12-30 14:09:44.584 INFO 1305 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
2018-12-30 14:09:44.584 INFO 1305 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2018-12-30 14:09:44.584 INFO 1305 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2018-12-30 14:09:44.668 INFO 1305 --- [ main] c.n.eureka.cluster.PeerEurekaNodes : Replica node URL: http://localhost:8761/eureka/
2018-12-30 14:09:44.675 INFO 1305 --- [ main] c.n.e.registry.AbstractInstanceRegistry : Finished initializing remote region registries. All known remote regions: []
2018-12-30 14:09:44.675 INFO 1305 --- [ main] c.n.eureka.DefaultEurekaServerContext : Initialized
2018-12-30 14:09:44.682 INFO 1305 --- [ main] o.s.b.a.e.web.EndpointLinksResolver : Exposing 2 endpoint(s) beneath base path '/actuator'
2018-12-30 14:09:44.741 INFO 1305 --- [ main] o.s.c.n.e.s.EurekaServiceRegistry : Registering application UNKNOWN with eureka with status UP
2018-12-30 14:09:44.744 INFO 1305 --- [ Thread-12] o.s.c.n.e.server.EurekaServerBootstrap : Setting the eureka configuration..
2018-12-30 14:09:44.745 INFO 1305 --- [ Thread-12] o.s.c.n.e.server.EurekaServerBootstrap : Eureka data center value eureka.datacenter is not set, defaulting to default
2018-12-30 14:09:44.745 INFO 1305 --- [ Thread-12] o.s.c.n.e.server.EurekaServerBootstrap : Eureka environment value eureka.environment is not set, defaulting to test
2018-12-30 14:09:44.754 INFO 1305 --- [ Thread-12] o.s.c.n.e.server.EurekaServerBootstrap : isAws returned false
2018-12-30 14:09:44.755 INFO 1305 --- [ Thread-12] o.s.c.n.e.server.EurekaServerBootstrap : Initialized server context
2018-12-30 14:09:44.755 INFO 1305 --- [ Thread-12] c.n.e.r.PeerAwareInstanceRegistryImpl : Got 1 instances from neighboring DS node
2018-12-30 14:09:44.755 INFO 1305 --- [ Thread-12] c.n.e.r.PeerAwareInstanceRegistryImpl : Renew threshold is: 1
2018-12-30 14:09:44.755 INFO 1305 --- [ Thread-12] c.n.e.r.PeerAwareInstanceRegistryImpl : Changing status to UP
2018-12-30 14:09:44.761 INFO 1305 --- [ Thread-12] e.s.EurekaServerInitializerConfiguration : Started Eureka Server
2018-12-30 14:09:44.775 INFO 1305 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8761 (http) with context path ''
2018-12-30 14:09:44.775 INFO 1305 --- [ main] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 8761
2018-12-30 14:09:44.777 INFO 1305 --- [ main] com.orbis.EurekaServiceApplication : Started EurekaServiceApplication in 4.097 seconds (JVM running for 5.186)
2018-12-30 14:10:44.762 INFO 1305 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Running the evict task with compensationTime 0msaa
However, when i remove the following dependency:
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>
the application fails to start up:
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:125) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:86) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:414) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:174) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:181) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:154) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
... 8 common frames omitted
Caused by: java.lang.IllegalStateException: StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[] failed to start
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.rethrowDeferredStartupExceptions(TomcatWebServer.java:171) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:109) ~[spring-boot-2.2.0.BUILD-SNAPSHOT.jar:2.2.0.BUILD-SNAPSHOT]
... 13 common frames omitted

Starting from Java 9 the JAXB implementation has been removed. So what you have added is only the API and you need to add the implementation also. There might be several alternatives.
As a fix you could add - for example, as there are other implementations also I guess - this dependency:
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>org.eclipse.persistence.moxy</artifactId>
<version>2.7.3</version>
</dependency>
Here is an excellent explanation about this.
Why it has been removed (excerpt from above link):
Java’s standard library isn’t exactly small and lightweight. In the course of the past 20+ years, many features have been added to it, mostly because at the time it was thought that it would be a good idea if Java supported a particular technology out-of-the-box.
One of these was support for XML-based web services. When Java SE 6 was released in December 2006, XML-based web services were popular, so the developers of the Java language thought it would be a good idea if Java would have support for calling web services as a standard feature. It was decided to add the necessary APIs, that were originally developed as part of Java EE, to Java SE. Among these were JAX-WS (Java API for XML-Based Web Services) and JAXB.
With today’s trend towards microservices, it’s important that the Java runtime environment is small and lightweight, so having a large runtime library with built-in support for every possible technology isn’t as advantageous anymore.
Therefore, a proposal was made in JEP-320 to remove the Java EE and CORBA modules from the JDK.
Note about MOXy: you might also need to add jaxp.properties that contains line:
javax.xml.bind.context.factory=org.eclipse.persistence.jaxb.JAXBContextFactory
to get rid of problem:
javax.xml.bind.JAXBException: Implementation of JAXB-API has not been found on module path or classpath.-
Added yet pretty printed version of comment from Orby that contains dependencies for Sun's implementation:
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>2.3.0</version>
</dependency>

Spring-Boot and Hibernate issue

I am just building a new App based on Spring-Boot 2.0.3.RELEASE, Hibernate and Java 9.
Since last night I had some issues for what I just have rebuilt it again to find step by step where the problem is located.
I am constantly facing the same issue and I cannot fix it by myself.
The Error:
2018-07-19 10:32:38.949 INFO 9080 --- [ main] com.tmtest.demo.DemoApplication : Starting DemoApplication on DESKTOP-MKTBJ7O with PID 9080 (D:\Git\test2\target\classes started by N-rG in D:\Git\test2)
2018-07-19 10:32:38.952 INFO 9080 --- [ main] com.tmtest.demo.DemoApplication : No active profile set, falling back to default profiles: default
2018-07-19 10:32:39.012 INFO 9080 --- [ main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext#2c07545f: startup date [Thu Jul 19 10:32:39 CEST 2018]; root of context hierarchy
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.springframework.cglib.core.ReflectUtils$1 (file:/C:/Users/N-rG/.m2/repository/org/springframework/spring-core/5.0.7.RELEASE/spring-core-5.0.7.RELEASE.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain)
WARNING: Please consider reporting this to the maintainers of org.springframework.cglib.core.ReflectUtils$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
2018-07-19 10:32:39.967 INFO 9080 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$53763105] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-07-19 10:32:40.174 INFO 9080 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2018-07-19 10:32:40.198 INFO 9080 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2018-07-19 10:32:40.198 INFO 9080 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.31
2018-07-19 10:32:40.207 INFO 9080 --- [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: [D:\Program Files\Java\jdk-10.0.1\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;D:\Program Files\nodejs\;D:\Program Files\Git\cmd;C:\Users\N-rG\AppData\Local\Programs\Python\Python36-32\Scripts\;C:\Users\N-rG\AppData\Local\Programs\Python\Python36-32\;C:\Users\N-rG\AppData\Local\Microsoft\WindowsApps;C:\Users\N-rG\AppData\Roaming\npm;.]
2018-07-19 10:32:40.279 INFO 9080 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2018-07-19 10:32:40.279 INFO 9080 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1272 ms
2018-07-19 10:32:40.372 INFO 9080 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-07-19 10:32:40.372 INFO 9080 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-07-19 10:32:40.372 INFO 9080 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-07-19 10:32:40.372 INFO 9080 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2018-07-19 10:32:40.372 INFO 9080 --- [ost-startStop-1] .s.DelegatingFilterProxyRegistrationBean : Mapping filter: 'springSecurityFilterChain' to: [/*]
2018-07-19 10:32:40.372 INFO 9080 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/]
2018-07-19 10:32:40.467 INFO 9080 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2018-07-19 10:32:40.531 INFO 9080 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2018-07-19 10:32:40.557 INFO 9080 --- [ main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2018-07-19 10:32:40.566 INFO 9080 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2018-07-19 10:32:40.603 INFO 9080 --- [ main] org.hibernate.Version : HHH000412: Hibernate Core {5.3.2.Final}
2018-07-19 10:32:40.604 INFO 9080 --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2018-07-19 10:32:40.650 INFO 9080 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.4.Final}
2018-07-19 10:32:40.727 INFO 9080 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
2018-07-19 10:32:40.838 WARN 9080 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.tmtest.demo.Backend.Factory.FactoryWorker.factoryPublisher in com.tmtest.demo.Backend.Factory.FactoryPublisher.factoryWorkerList
2018-07-19 10:32:40.839 INFO 9080 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2018-07-19 10:32:40.849 INFO 9080 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
2018-07-19 10:32:40.850 INFO 9080 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2018-07-19 10:32:40.860 INFO 9080 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-07-19 10:32:40.867 ERROR 9080 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.tmtest.demo.Backend.Factory.FactoryWorker.factoryPublisher in com.tmtest.demo.Backend.Factory.FactoryPublisher.factoryWorkerList
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1708) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:581) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1089) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:859) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at com.tmtest.demo.DemoApplication.main(DemoApplication.java:12) [classes/:na]
Caused by: org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: com.tmtest.demo.Backend.Factory.FactoryWorker.factoryPublisher in com.tmtest.demo.Backend.Factory.FactoryPublisher.factoryWorkerList
at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:782) ~[hibernate-core-5.3.2.Final.jar:5.3.2.Final]
at org.hibernate.cfg.annotations.CollectionBinder$1.secondPass(CollectionBinder.java:733) ~[hibernate-core-5.3.2.Final.jar:5.3.2.Final]
at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:54) ~[hibernate-core-5.3.2.Final.jar:5.3.2.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1696) ~[hibernate-core-5.3.2.Final.jar:5.3.2.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1664) ~[hibernate-core-5.3.2.Final.jar:5.3.2.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:287) ~[hibernate-core-5.3.2.Final.jar:5.3.2.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:904) ~[hibernate-core-5.3.2.Final.jar:5.3.2.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:935) ~[hibernate-core-5.3.2.Final.jar:5.3.2.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:57) ~[spring-orm-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:390) ~[spring-orm-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:377) ~[spring-orm-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1767) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1704) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
... 16 common frames omitted
Process finished with exit code 1
My 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>
<groupId>com.tmtest</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo</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>10</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-security</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>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>jquery</artifactId>
<version>3.3.1-1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.0.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.3.2.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.3.2.Final</version>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
The FactoryPublisher class
#Entity
#Getter
#Setter
#EqualsAndHashCode
public class FactoryPublisher {
#OneToMany(mappedBy = "factoryPublisher", cascade = CascadeType.ALL, fetch = FetchType.EAGER, orphanRemoval = true)
private final List<FactoryWorker> factoryWorkerList = new ArrayList<>();
private final VirtualTimer virtualTimer = VirtualTimer.CounterFactory.getNewCounter();
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
public FactoryPublisher() {
for (int i = 0; i < 2; i++) {
factoryWorkerList.add(new FactoryWorker());
}
new Thread(virtualTimer).start();
}
public synchronized void updateWorkers() {
factoryWorkerList.forEach(factoryWorker -> factoryWorker.updateWorker(virtualTimer.getCurrentValue()));
}
}
and the Worker:
#Entity
#Getter
#Setter
public class FactoryWorker {
#GeneratedValue(strategy = GenerationType.AUTO)
#Id
private long iD;
public void updateWorker(final int timeData) {
//System.out.println("worker: " + iD + " was updated with data: " + timeData);
}
}
the main:
#SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}

The exception message is giving a hint already:
mappedBy reference an unknown target entity property: com.tmtest.demo.Backend.Factory.FactoryWorker.factoryPublisher in com.tmtest.demo.Backend.Factory.FactoryPublisher.factoryWorkerList
The mappedBy property can be used to define a bi-directional mapping, where you define the relation on one side (eg #ManyToOne) and use the mappedBy property on the other side so it knows how the relation works.
However, in your case you don't have a bi-directional mapping. In fact, you don't have a field called factoryPublisher in your FactoryWorker entity, so it can't resolve your mapping.
To solve this, you want to map the factoryPublisher field within FactoryWorker, for example:
#Entity
#Getter
#Setter
public class FactoryWorker {
#GeneratedValue(strategy = GenerationType.AUTO)
#Id
private long iD;
// Add this
#ManyToOne
private FactoryPublisher factoryPublisher;
// ...
}
Alternatively, if you don't want a bi-directional mapping, you can remove the mappedBy property on #OneToMany.