Launching Spring application Address already in use

Question

I have this error launching my spring application:

java -jar target/gs-serving-web-content-0.1.0.jar

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::             (v0.5.0.M6)

2013-12-23 00:23:09.466  INFO 19252 --- [           main] hello.Application                        : Starting Application on mbp-de-antoine.home with PID 19252 (/Users/antoine/Documents/workspace-sts-3.4.0.RELEASE/springapp/target/gs-serving-web-content-0.1.0.jar started by antoine)
2013-12-23 00:23:09.511  INFO 19252 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@24024c39: startup date [Mon Dec 23 00:23:09 CET 2013]; root of context hierarchy
2013-12-23 00:23:10.910  INFO 19252 --- [           main] o.apache.catalina.core.StandardService   : Starting service Tomcat
2013-12-23 00:23:10.910  INFO 19252 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/7.0.42
2013-12-23 00:23:11.045  INFO 19252 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2013-12-23 00:23:11.046  INFO 19252 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1537 ms
2013-12-23 00:23:11.274  INFO 19252 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring FrameworkServlet 'dispatcherServlet'
2013-12-23 00:23:11.274  INFO 19252 --- [ost-startStop-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization started
2013-12-23 00:23:11.409  INFO 19252 --- [ost-startStop-1] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2013-12-23 00:23:11.634  INFO 19252 --- [ost-startStop-1] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/greeting],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String hello.GreetingController.greeting(java.lang.String,org.springframework.ui.Model)
2013-12-23 00:23:11.717  INFO 19252 --- [ost-startStop-1] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2013-12-23 00:23:11.717  INFO 19252 --- [ost-startStop-1] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2013-12-23 00:23:12.406  INFO 19252 --- [ost-startStop-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization completed in 1132 ms
2013-12-23 00:23:12.417 ERROR 19252 --- [           main] o.a.coyote.http11.Http11NioProtocol      : Failed to start end point associated with ProtocolHandler ["http-nio-8080"]

java.net.BindException: Address already in use
    at sun.nio.ch.Net.bind0(Native Method)
    at sun.nio.ch.Net.bind(Net.java:444)
    at sun.nio.ch.Net.bind(Net.java:436)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
    at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:473)
    at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:617)
    at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:444)
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:1010)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:459)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:732)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.startup.Tomcat.start(Tomcat.java:335)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:58)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:53)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:259)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:140)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:158)
    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:122)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:552)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:293)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:749)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:738)
    at hello.Application.main(Application.java:12)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
    at java.lang.Thread.run(Thread.java:744)

2013-12-23 00:23:12.419 ERROR 19252 --- [           main] o.apache.catalina.core.StandardService   : Failed to start connector [Connector[org.apache.coyote.http11.Http11NioProtocol-8080]]

org.apache.catalina.LifecycleException: Failed to start component [Connector[org.apache.coyote.http11.Http11NioProtocol-8080]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:459)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:732)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.startup.Tomcat.start(Tomcat.java:335)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:58)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:53)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:259)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:140)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:158)
    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:122)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:552)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:293)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:749)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:738)
    at hello.Application.main(Application.java:12)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
    at java.lang.Thread.run(Thread.java:744)
Caused by: org.apache.catalina.LifecycleException: service.getName(): "Tomcat";  Protocol handler start failed
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:1017)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 24 common frames omitted
Caused by: java.net.BindException: Address already in use
    at sun.nio.ch.Net.bind0(Native Method)
    at sun.nio.ch.Net.bind(Net.java:444)
    at sun.nio.ch.Net.bind(Net.java:436)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
    at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:473)
    at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:617)
    at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:444)
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:1010)
    ... 25 common frames omitted

2013-12-23 00:23:12.420  INFO 19252 --- [           main] o.apache.catalina.core.StandardService   : Stopping service Tomcat
2013-12-23 00:23:12.430  INFO 19252 --- [           main] nitializer$AutoConfigurationReportLogger : 


=========================
AUTO-CONFIGURATION REPORT
=========================


Positive matches:
-----------------

   MessageSourceAutoConfiguration
      - @ConditionalOnMissingBean (types: org.springframework.context.MessageSource; SearchStrategy: all) found no beans (OnBeanCondition)

   PropertyPlaceholderAutoConfiguration#propertySourcesPlaceholderConfigurer
      - @ConditionalOnMissingBean (types: org.springframework.context.support.PropertySourcesPlaceholderConfigurer; SearchStrategy: current) found no beans (OnBeanCondition)

   ThymeleafAutoConfiguration
      - @ConditionalOnClass classes found: org.thymeleaf.spring3.SpringTemplateEngine (OnClassCondition)
      - @ConditionalOnClass classes found: org.thymeleaf.spring3.SpringTemplateEngine (OnClassCondition)

   ThymeleafAutoConfiguration.DefaultTemplateResolverConfiguration
      - @ConditionalOnMissingBean (names: defaultTemplateResolver; SearchStrategy: all) found no beans (OnBeanCondition)

   ThymeleafAutoConfiguration.ThymeleafDefaultConfiguration
      - @ConditionalOnMissingBean (types: org.thymeleaf.spring3.SpringTemplateEngine; SearchStrategy: all) found no beans (OnBeanCondition)

   ThymeleafAutoConfiguration.ThymeleafViewResolverConfiguration
      - @ConditionalOnClass classes found: javax.servlet.Servlet (OnClassCondition)
      - @ConditionalOnClass classes found: javax.servlet.Servlet (OnClassCondition)

   ThymeleafAutoConfiguration.ThymeleafViewResolverConfiguration#thymeleafViewResolver
      - @ConditionalOnMissingBean (names: thymeleafViewResolver; SearchStrategy: all) found no beans (OnBeanCondition)

   DispatcherServletAutoConfiguration
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - @ConditionalOnClass classes found: org.springframework.web.servlet.DispatcherServlet (OnClassCondition)
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - @ConditionalOnClass classes found: org.springframework.web.servlet.DispatcherServlet (OnClassCondition)
      - @ConditionalOnBean (types: org.springframework.boot.context.embedded.EmbeddedServletContainerFactory; SearchStrategy: all) found the following [tomcatEmbeddedServletContainerFactory] (OnBeanCondition)

   DispatcherServletAutoConfiguration#dispatcherServlet
      - no DispatcherServlet found (DispatcherServletAutoConfiguration.DefaultDispatcherServletCondition)

   EmbeddedServletContainerAutoConfiguration
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - found web application StandardServletEnvironment (OnWebApplicationCondition)

   EmbeddedServletContainerAutoConfiguration.EmbeddedTomcat
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.apache.catalina.startup.Tomcat (OnClassCondition)
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.apache.catalina.startup.Tomcat (OnClassCondition)
      - @ConditionalOnMissingBean (types: org.springframework.boot.context.embedded.EmbeddedServletContainerFactory; SearchStrategy: current) found no beans (OnBeanCondition)

   ServerPropertiesAutoConfiguration#serverProperties
      - @ConditionalOnMissingBean (types: org.springframework.boot.context.embedded.properties.ServerProperties; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.springframework.web.servlet.DispatcherServlet,org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter (OnClassCondition)
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.springframework.web.servlet.DispatcherServlet,org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter (OnClassCondition)
      - @ConditionalOnMissingBean (types: org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration#hiddenHttpMethodFilter
      - @ConditionalOnMissingBean (types: org.springframework.web.filter.HiddenHttpMethodFilter; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#defaultViewResolver
      - @ConditionalOnMissingBean (types: org.springframework.web.servlet.view.InternalResourceViewResolver; SearchStrategy: all) found no beans (OnBeanCondition)


Negative matches:
-----------------

   RabbitAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.amqp.rabbit.core.RabbitTemplate,com.rabbitmq.client.Channel (OnClassCondition)

   AopAutoConfiguration
      - required @ConditionalOnClass classes not found: org.aspectj.lang.annotation.Aspect,org.aspectj.lang.reflect.Advice (OnClassCondition)

   BatchAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.batch.core.launch.JobLauncher (OnClassCondition)

   JpaRepositoriesAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.data.jpa.repository.JpaRepository (OnClassCondition)

   MongoRepositoriesAutoConfiguration
      - required @ConditionalOnClass classes not found: com.mongodb.Mongo,org.springframework.data.mongodb.repository.MongoRepository (OnClassCondition)

   DataSourceAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType (OnClassCondition)

   DataSourceTransactionManagerAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.jdbc.core.JdbcTemplate,org.springframework.transaction.PlatformTransactionManager (OnClassCondition)

   JmsTemplateAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.jms.core.JmsTemplate,javax.jms.ConnectionFactory (OnClassCondition)

   DeviceResolverAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.mobile.device.DeviceResolverHandlerInterceptor,org.springframework.mobile.device.DeviceHandlerMethodArgumentResolver (OnClassCondition)

   HibernateJpaAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean,org.springframework.transaction.annotation.EnableTransactionManagement,javax.persistence.EntityManager,org.hibernate.ejb.HibernateEntityManager (OnClassCondition)

   ReactorAutoConfiguration
      - required @ConditionalOnClass classes not found: reactor.spring.context.config.EnableReactor (OnClassCondition)

   ThymeleafAutoConfiguration.ThymeleafSecurityDialectConfiguration
      - required @ConditionalOnClass classes not found: org.thymeleaf.extras.springsecurity3.dialect.SpringSecurityDialect (OnClassCondition)

   ThymeleafAutoConfiguration.ThymeleafWebLayoutConfiguration
      - required @ConditionalOnClass classes not found: nz.net.ultraq.thymeleaf.LayoutDialect (OnClassCondition)

   EmbeddedServletContainerAutoConfiguration.EmbeddedJetty
      - required @ConditionalOnClass classes not found: org.eclipse.jetty.server.Server,org.eclipse.jetty.util.Loader (OnClassCondition)

   MultipartAutoConfiguration
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.springframework.web.multipart.support.StandardServletMultipartResolver (OnClassCondition)
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.springframework.web.multipart.support.StandardServletMultipartResolver (OnClassCondition)
      - @ConditionalOnBean (types: javax.servlet.MultipartConfigElement; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#beanNameViewResolver
      - @ConditionalOnBean (types: org.springframework.web.servlet.View; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#viewResolver
      - @ConditionalOnBean (types: org.springframework.web.servlet.View; SearchStrategy: all) found no beans (OnBeanCondition)

   WebSocketAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.web.socket.WebSocketHandler (OnClassCondition)



java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
    at java.lang.Thread.run(Thread.java:744)
Caused by: org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embdedded Tomcat
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:138)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:476)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:552)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:293)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:749)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:738)
    at hello.Application.main(Application.java:12)
    ... 6 more
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embdedded Tomcat
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:85)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:53)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:259)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:140)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:158)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:135)
    ... 13 more
Caused by: java.lang.IllegalStateException: Tomcat connector in failed state
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:81)
    ... 18 more

I think this is because my port is used. My port 8080 is used so I try the port 8181 I have no application on the port 8181

in the tomcat server.xml I set the port to 8181 but the problem persist

I find this post:

Alternate port for Tomcat (not 8080) when starting with Maven?

But I have the same problem after launching mvn -Dmaven.tomcat.port=8181 tomcat:run-war

I don't realy understand how to maven is linked to the tomcat server This is 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>

    <groupId>org.springframework</groupId>
    <artifactId>gs-serving-web-content</artifactId>
    <version>0.1.0</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>0.5.0.M6</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.thymeleaf</groupId>
            <artifactId>thymeleaf-spring3</artifactId>
        </dependency>
    </dependencies>

    <properties>
        <start-class>hello.Application</start-class>
    </properties>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

    <repositories>
        <repository>
            <id>spring-milestone</id>
            <url>http://repo.spring.io/libs-milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

    <pluginRepositories>
        <pluginRepository>
            <id>spring-milestone</id>
            <url>http://repo.spring.io/libs-milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>

</project>

Thanks for your help

Answer 1

Just met same problem.

Finally I found the process running on 8080 was owned by other user, such as root. which caused I (user dev) can't find it by lsof -i :8080 or lsof -t -i :8080 -s TCP:LISTEN.

Answer 2

This is because the port is already running in the background.So you can restart the eclipse and try again. OR open the file application.properties and change the value of 'server.port' to some other value like ex:- 8000/8181

Answer 3

I was looking for a solution for Windows but didn't found any. Finally, figured out that that there is a dangling java application using the port. Maybe it's the earlier instance of the spring application and ended the process.

I used tcpview from Microsoft. It shows services/applications using which port on your computer.

You can end the process. And Done!

Answer 4

This error basically happens when the specific port is not free. So there are two solutions, you can free that port by killing or closing the service which is using it or you can run your application (tomcat) on a different port.

Solution 1: Free the port

On a Linux machine you can find the process-id of port's consumer and then kill it. Use the following command (it is assume that the default port is 8080)

netstat -pnltu | grep -i "8080"

The output of the above-mentioned command would be something like:

tcp6   0  0 :::8080    :::*      LISTEN      20674/java 

Then you can easily kill the process with its processid:

kill 20674

On a windows machine to find a processid use netstat -ano -p tcp |find "8080". To kill the process use taskkill /F /PID 1234 (instead of 1234 enter the founded processid).

Solution 2: Change the default port

In the development process developers use the port 8080 that you can change it easily. You need to specify your desired port number in the application.properties file of your project (/src/main/resources/application.properties) by using the following specification:

server.port=8081

You can also set an alternative port number while executing the .jar file

- java -jar spring-boot-application.jar --server.port=8081

Please notice that sometimes (not necessarily) you have to change other ports too like:

management.port=
tomcat.jvmroute=
tomcat.ajp.port=
tomcat.ajp.redirectPort=
etc...

Answer 5

Right click in console and click Terminate/Disconnect All option.

OR

Click on 'Display selected console' icon on top right corner of the console window and, choose and terminate the console which holds the port still.

Answer 6

Spring Boot uses embedded Tomcat by default, but it handles it differently without using tomcat-maven-plugin. To change the port use --server.port parameter for example:

java -jar target/gs-serving-web-content-0.1.0.jar --server.port=8181

Update. Alternatively put server.port=8181 into application.properties (or application.yml).

Answer 7

It is really old question. Maybe this is usefull. Focusing in your title problem, it is how I start my applications and then I can easily shutdown them. Change the port number for each application you want to start as mentioned above.

application.properties

#using curl -X POST localhost:8080/actuator/shutdown to avoid:
#netstat -ano | find "8080"
#taskkill /F /PID xxxx (xxxx stands for PID)
management.endpoints.web.exposure.include=*
management.endpoint.shutdown.enabled=true
endpoints.shutdown.enabled=true

add this dependency:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

Now you can shotdown easily by

curl -X POST localhost:8080/actuator/shutdown

Answer 8

I was getting same issue, i.e. protocol handler start failed. Cause was port is already in use. I found whether the port was in use or not. It was. So I killed the process that was running on that port and restarted my spring boot application. And it worked. :)

Answer 9

you can configure another port number in your IDE /src/main/resources/application.properties

server.port=8081

otherwise right click on the IDE console tab and select Terminate/Disconnect All

Answer 10

In your application.properties file -

/src/main/resources/application.properties

Change the port number to something like this -

server.port=8181

Or alternatively you can provide alternative port number while executing your jar file - java -jar resource-server/build/libs/resource-server.jar --server.port=8888

Answer 11

I try to change port number in the following file - /src/main/resources/application-prod.yml

And inside this file I made this change:

server: port: 8100 (or whatever you want)

I hope that this will works good for you

Answer 12

You can resolve this following these steps:

1. Right click on the project you are running.
2. Click on Run as and Run Configurations from the option.
3. A new run configuration will open. Under Spring Boot Tab see for Override properties.
4. Add the property-value pair as server.port=8181, or any other port of your choice. This will override the default port which is 8080

Answer 13

In Eclipse, if Spring Tool Suite is installed, you can go to Boot Dashboard and expand local in explorer and right click on the application that is running on port 8080 and stop it before you re run your application.

Answer 14

I would suggest to kill the port number. It worked for me

netstat -ano | findstr :yourPortNumber taskkill /PID typeyourPIDhere /F

Answer 15

Basically the default server usually run on the background at port 8080. Open services.msc and stop tomcat server and try running the spring boot application again.

Answer 16

This only worked for me by setting additional properties and using available arbitrary port numbers, like this:

• YML

/src/main/resources/application.yml

server:
  port: 18181
management:
  port: 9191
tomcat:
  jvmroute: 5478
  ajp:
    port: 4512
    redirectPort: 1236

• Properties

/src/main/resources/application.properties

server.port=18181
management.port=9191
tomcat.jvmroute=5478
tomcat.ajp.port=4512
tomcat.ajp.redirectPort=1236     

Answer 17

You have another process that’s listening on port 8080 which is the default port that’s used by Spring Boot’s web support. You either need to stop that process or configure your app to listen on another port.

You can change the port configuration by adding server.port=4040 (for example) to src/main/resources/application.properties

Answer 18

In my case, Oracle TNS Service was using port 8080, found that using running the command "netstat - anob" as an administrator. Simply used Shutdown Database from the Windows start menu to stop that service and was able to start the SpringBoot app without any issue.

Also if you cannot find out which app is using the 8080 port and just want to run the SprintBoot app, you can click on Run As... and in the VM arguments enter: -Dserver.port=0 (this will pick any random available port) or you can be specific like: -Dserver.port=8081

Hope it helps.

Answer 19

first, check that who uses port 8080.

• telnet localhost 8080
• use browser to open http://localhost:8080

if the port 8080 is in use, change the listening port to 8181.

if you use IDEA, modify start configuration, Run-> Edit Configuration enter image description here

if you use mvn spring-boot, then use the command:

mvn spring-boot:run -Dserver.port=8181

if you use java -jar, then use the command:

java -jar xxxx.jar --server.port=8181

Answer 20

I resolved this problem, by stop the application (red square in Eclipse) before run again. If you don't stop it , the application stay in run mode , so port still used .

Answer 21

In my case looking in the servers window only showed a tomcat server that I had never used for this project. My SpringBoot project used an embedded tomcat server and it did not stop when my application finished. This button which I indicate with a red arrow will stop the application and the Tomcat server so next time I run the application I will not get the error that an Instance of Tomcat is already running on port 8080.

actual error messages:

Verify the connector's configuration, identify and stop any process that's listening on port 8080, or configure this application to listen on another port.

Caused by: java.net.BindException: Address already in use Caused by: org.apache.catalina.LifecycleException: service.getName(): "Tomcat"; Protocol handler start failed

I will now be looking into a way to shut down all services on completion of my SpringBoot Consuming Rest application in this tutorial https://spring.io/guides/gs/consuming-rest/

spring-boot

Answer 22

Run the following command to search for the process that is using the port

lsof -i :<portNumber> | grep LISTEN

in your case this will be -->

lsof -i :8080 | grep LISTEN
java    78960 xyxss  119u  IPv6 0x6c20d372bc88c27d      0t0  TCP *:8092 (LISTEN)

The 78960 is the process id, use the following command to kill the process

kill -9 78960

Launch the application again.

Answer 23

Configure another port number(eg:8181) in /src/main/resources/application.properties

server.port=8181

Answer 24

Close the application, then restart it after changing to a new port:

${port:8181}

You can use any new unused port. Here, I used port 8181.

Answer 25

You need to stop the server before re-launching. Look for the red box icon or server view.

Answer 26

Using IntelliJ, I got this error when I tried to run a Spring app while there was one app already running. I had to stop the first one. After that, running the second app didn't return any errors.