Spring application using Maven including only Spring Web dependency gives "Unable to start embedded Tomcat serve" error.
The same project runs on other computers like expected.
Spring Boot Version: 2.4.3
Package Type: JAR
Java Version: 11
No additional code added from the starter project except to print to the console for testing.
pom.xml dependancies:
<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>
Log:
2021-02-22 16:17:28.896 INFO 34556 --- [ main] com.example.demo.DemoApplication : Starting DemoApplication using Java 11.0.10 on Soul with PID 34556 (C:\Users\ryne0\Desktop\FullStackWeb\Spring\demo\target\classes started by ryne0 in C:\Users\ryne0\Desktop\FullStackWeb\Spring\demo)
2021-02-22 16:17:28.900 INFO 34556 --- [ main] com.example.demo.DemoApplication : No active profile set, falling back to default profiles: default
2021-02-22 16:17:28.902 DEBUG 34556 --- [ main] o.s.boot.SpringApplication : Loading source class com.example.demo.DemoApplication
2021-02-22 16:17:28.995 DEBUG 34556 --- [ main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@457c9034
2021-02-22 16:17:30.317 DEBUG 34556 --- [ main] .s.b.w.e.t.TomcatServletWebServerFactory : Code archive: C:\Users\ryne0\.m2\repository\org\springframework\boot\spring-boot\2.4.3\spring-boot-2.4.3.jar
2021-02-22 16:17:30.318 DEBUG 34556 --- [ main] .s.b.w.e.t.TomcatServletWebServerFactory : Code archive: C:\Users\ryne0\.m2\repository\org\springframework\boot\spring-boot\2.4.3\spring-boot-2.4.3.jar
2021-02-22 16:17:30.318 DEBUG 34556 --- [ main] .s.b.w.e.t.TomcatServletWebServerFactory : None of the document roots [src/main/webapp, public, static] point to a directory and will be ignored.
2021-02-22 16:17:30.353 INFO 34556 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 81 (http)
2021-02-22 16:17:30.374 INFO 34556 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2021-02-22 16:17:30.387 INFO 34556 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.43]
2021-02-22 16:17:30.507 INFO 34556 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2021-02-22 16:17:30.507 DEBUG 34556 --- [ main] w.s.c.ServletWebServerApplicationContext : Published root WebApplicationContext as ServletContext attribute with name [org.springframework.web.context.WebApplicationContext.ROOT]
2021-02-22 16:17:30.508 INFO 34556 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1513 ms
2021-02-22 16:17:30.535 DEBUG 34556 --- [ main] o.s.b.w.s.ServletContextInitializerBeans : Mapping filters: characterEncodingFilter urls=[/*] order=-2147483648, formContentFilter urls=[/*] order=-9900, requestContextFilter urls=[/*] order=-105
2021-02-22 16:17:30.547 DEBUG 34556 --- [ main] o.s.b.w.s.ServletContextInitializerBeans : Mapping servlets: dispatcherServlet urls=[/]
2021-02-22 16:17:30.599 DEBUG 34556 --- [ main] o.s.b.w.s.f.OrderedRequestContextFilter : Filter 'requestContextFilter' configured for use
2021-02-22 16:17:30.600 DEBUG 34556 --- [ main] s.b.w.s.f.OrderedCharacterEncodingFilter : Filter 'characterEncodingFilter' configured for use
2021-02-22 16:17:30.600 DEBUG 34556 --- [ main] o.s.b.w.s.f.OrderedFormContentFilter : Filter 'formContentFilter' configured for use
2021-02-22 16:17:30.817 INFO 34556 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2021-02-22 16:17:30.828 DEBUG 34556 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : ControllerAdvice beans: 0 @ModelAttribute, 0 @InitBinder, 1 RequestBodyAdvice, 1 ResponseBodyAdvice
2021-02-22 16:17:30.949 DEBUG 34556 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : 2 mappings in 'requestMappingHandlerMapping'
2021-02-22 16:17:30.991 DEBUG 34556 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Patterns [/webjars/**, /**] in 'resourceHandlerMapping'
2021-02-22 16:17:31.003 DEBUG 34556 --- [ main] .m.m.a.ExceptionHandlerExceptionResolver : ControllerAdvice beans: 0 @ExceptionHandler, 1 ResponseBodyAdvice
2021-02-22 16:17:31.104 WARN 34556 --- [ 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
2021-02-22 16:17:31.110 INFO 34556 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'applicationTaskExecutor'
2021-02-22 16:17:31.122 INFO 34556 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2021-02-22 16:17:31.197 DEBUG 34556 --- [ main] ConditionEvaluationReportLoggingListener :
2021-02-22 16:17:32.117 ERROR 34556 --- [ 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-5.3.4.jar:5.3.4]
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356) ~[spring-context-5.3.4.jar:5.3.4]
at java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[na:na]
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:934) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:585) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) ~[spring-boot-2.4.3.jar:2.4.3]
at com.example.demo.DemoApplication.main(DemoApplication.java:10) ~[classes/: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-2.4.3.jar:2.4.3]
at org.springframework.boot.web.servlet.context.WebServerStartStopLifecycle.start(WebServerStartStopLifecycle.java:43) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) ~[spring-context-5.3.4.jar:5.3.4]
... 15 common frames omitted
Caused by: java.lang.IllegalArgumentException: standardService.connector.startFailed
at org.apache.catalina.core.StandardService.addConnector(StandardService.java:244) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.addPreviouslyRemovedConnectors(TomcatWebServer.java:282) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.start(TomcatWebServer.java:213) ~[spring-boot-2.4.3.jar:2.4.3]
... 17 common frames omitted
Caused by: org.apache.catalina.LifecycleException: Protocol handler start failed
at org.apache.catalina.connector.Connector.startInternal(Connector.java:1074) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.StandardService.addConnector(StandardService.java:240) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
... 19 common frames omitted
Caused by: java.io.IOException: Unable to establish loopback connection
at java.base/sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:94) ~[na:na]
at java.base/sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:61) ~[na:na]
at java.base/java.security.AccessController.doPrivileged(Native Method) ~[na:na]
at java.base/sun.nio.ch.PipeImpl.<init>(PipeImpl.java:171) ~[na:na]
at java.base/sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50) ~[na:na]
at java.base/java.nio.channels.Pipe.open(Pipe.java:155) ~[na:na]
at java.base/sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:142) ~[na:na]
at java.base/sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44) ~[na:na]
at java.base/java.nio.channels.Selector.open(Selector.java:295) ~[na:na]
at org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector(NioSelectorPool.java:52) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.tomcat.util.net.NioSelectorPool.close(NioSelectorPool.java:119) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.tomcat.util.net.NioEndpoint.unbind(NioEndpoint.java:386) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.tomcat.util.net.AbstractEndpoint.bindWithCleanup(AbstractEndpoint.java:1198) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:1279) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:608) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.connector.Connector.startInternal(Connector.java:1071) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
... 21 common frames omitted
Caused by: java.net.BindException: Cannot assign requested address: connect
at java.base/sun.nio.ch.Net.connect0(Native Method) ~[na:na]
at java.base/sun.nio.ch.Net.connect(Net.java:476) ~[na:na]
at java.base/sun.nio.ch.Net.connect(Net.java:468) ~[na:na]
at java.base/sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:694) ~[na:na]
at java.base/java.nio.channels.SocketChannel.open(SocketChannel.java:194) ~[na:na]
at java.base/sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:127) ~[na:na]
at java.base/sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:76) ~[na:na]
... 36 common frames omitted
There was control software installed for the individuals Network interface controller (NIC) that allowed both ethernet and wifi to be used simultaneously. This was installed to supposedly improve gaming experience, but did not play nicely with tomcat in Spring. Once disabled the application was able to run as expected.
Edit:
A similar error occurs if your address or port is incorrect / already used. This fixes the error in most situations, but a driver like the one mentioned above may cause the error.