java - Cant start tomcat with spring boot on linux

Question

Suddenly I cant start my embedded tomcat.

I get:

[main] ERROR o.a.coyote.http11.Http11NioProtocol - Failed to start end point associated with ProtocolHandler ["http-nio-86"]
java.net.SocketException: Permission denied

I tried changing tomcat port, I tried setting permissions: chmod 777 src/ -R

I use linux Mint 17

I have no idea what to do...

This is the stacktrace:

    [main] ERROR o.a.coyote.http11.Http11NioProtocol - Failed to start end point associated with ProtocolHandler ["http-nio-86"]
java.net.SocketException: Permission denied
    at sun.nio.ch.Net.bind0(Native Method) ~[na:1.7.0_67]
    at sun.nio.ch.Net.bind(Net.java:444) ~[na:1.7.0_67]
    at sun.nio.ch.Net.bind(Net.java:436) ~[na:1.7.0_67]
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214) ~[na:1.7.0_67]
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[na:1.7.0_67]
    at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:473) ~[tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:647) ~[tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:449) ~[tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:1007) [tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:459) [tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:731) [tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.startup.Tomcat.start(Tomcat.java:341) [tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:79) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:69) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:270) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:145) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:159) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:132) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:476) [spring-context-4.0.3.RELEASE.jar:4.0.3.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:120) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:648) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:909) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:898) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at com.company.WebApplication.main(WebApplication.java:23) [classes/:na]
- 2014-10-30 10:30:51,609 [main] ERROR o.a.catalina.core.StandardService - Failed to start connector [Connector[org.apache.coyote.http11.Http11NioProtocol-86]]
org.apache.catalina.LifecycleException: Failed to start component [Connector[org.apache.coyote.http11.Http11NioProtocol-86]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) [tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:459) ~[tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:731) [tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.startup.Tomcat.start(Tomcat.java:341) [tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:79) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:69) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:270) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:145) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:159) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:132) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:476) [spring-context-4.0.3.RELEASE.jar:4.0.3.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:120) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:648) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:909) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:898) [spring-boot-1.0.2.RELEASE.jar:1.0.2.RELEASE]
    at com.company.WebApplication.main(WebApplication.java:23) [classes/:na]
Caused by: org.apache.catalina.LifecycleException: service.getName(): "Tomcat";  Protocol handler start failed
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:1014) ~[tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-7.0.52.jar:7.0.52]
    ... 18 common frames omitted
Caused by: java.net.SocketException: Permission denied
    at sun.nio.ch.Net.bind0(Native Method) ~[na:1.7.0_67]
    at sun.nio.ch.Net.bind(Net.java:444) ~[na:1.7.0_67]
    at sun.nio.ch.Net.bind(Net.java:436) ~[na:1.7.0_67]
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214) ~[na:1.7.0_67]
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[na:1.7.0_67]
    at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:473) ~[tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:647) ~[tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:449) ~[tomcat-embed-core-7.0.52.jar:7.0.52]
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:1007) ~[tomcat-embed-core-7.0.52.jar:7.0.52]
    ... 19 common frames omitted
- 2014-10-30 10:30:51,609 [main] INFO  o.a.coyote.http11.Http11NioProtocol - Stopping ProtocolHandler ["http-nio-86"]
- 2014-10-30 10:30:51,609 [main] INFO  o.a.coyote.http11.Http11NioProtocol - Pausing ProtocolHandler ["http-nio-86"]
- 2014-10-30 10:30:51,609 [main] INFO  o.a.catalina.core.StandardService - Stopping service Tomcat
- 2014-10-30 10:30:51,612 [localhost-startStop-1] ERROR o.a.c.loader.WebappClassLoader - The web application [] appears to have started a thread named [Timer-0] but has failed to stop it. This is very likely to create a memory leak.
- 2014-10-30 10:30:51,612 [localhost-startStop-1] ERROR o.a.c.loader.WebappClassLoader - The web application [] appears to have started a thread named [com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0] but has failed to stop it. This is very likely to create a memory leak.
- 2014-10-30 10:30:51,612 [localhost-startStop-1] ERROR o.a.c.loader.WebappClassLoader - The web application [] appears to have started a thread named [com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1] but has failed to stop it. This is very likely to create a memory leak.
- 2014-10-30 10:30:51,613 [localhost-startStop-1] ERROR o.a.c.loader.WebappClassLoader - The web application [] appears to have started a thread named [com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2] but has failed to stop it. This is very likely to create a memory leak.
- 2014-10-30 10:30:51,613 [localhost-startStop-1] ERROR o.a.c.loader.WebappClassLoader - The web application [] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak.
Exception in thread "main" org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:135)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:476)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:120)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:648)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:311)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:909)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:898)
    at com.company.WebApplication.main(WebApplication.java:23)
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:106)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:69)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(Tomcat

Answer 1

Linux doesn't allow a normal user to bind to a TCP port that's <= 1024. There's a discussion of the reasons for that here. You're attempting to bind to 86 and, therefore, it's failing with "Permission denied". The quickest and safest solution is to configure the port with a value that's > 1024.

As you're using Boot's embedded Tomcat instance, the port's configured in application.properties using the server.port property.