HTTP Status 500 – Internal Server Error

[Franklin]

HTTP Status 500 – Internal Server Error

---

Type Exception Report

Message Unable to register MBean [com.atlassian.confluence.jmx.TaskQueueWrapper@1848fc13] with key 'Confluence:name=MailTaskQueue'; nested exception is javax.management.InstanceAlreadyExistsException: Confluence:name=MailTaskQueue

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

org.springframework.jmx.export.UnableToRegisterMBeanException: Unable to register MBean [com.atlassian.confluence.jmx.TaskQueueWrapper@1848fc13] with key 'Confluence:name=MailTaskQueue'; nested exception is javax.management.InstanceAlreadyExistsException: Confluence:name=MailTaskQueue
	org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:625)

[Kirubel Tesfaye]

Hey @Franklin,

This exception is thrown because you might declare another bean with the same id as 'MailTaskQueue'. 

Solution #1:

I recommend that you change the bean id. It is an easy solution if there aren't other dependency on bean.

Hope this helps!

[Franklin]

Hey @Kirubel Tesfaye

Thank you!

Where is the bean id?

How can I change it?

[Kirubel Tesfaye]

hello again @Franklin,

The bean id is 

key 'Confluence:name=MailTaskQueue'

change MailTaskQueue into other name.

If this doesn't work, could you elaborate on what were you trying to do when this exception was thrown.

[Franklin]

 I find the bean id in log

I want to change the bean id

Which file should I change to change bean id?

[Kirubel Tesfaye]

After seeing your stacktrace...It seems like more of a permission issue rather than confliciting bean id. Check out this knowledge article to find resolution to jmx error

https://confluence.atlassian.com/confkb/unable-to-start-confluence-due-to-jmx-182158269.html?_ga=2.137795126.703459604.1534410422-1688932066.1529406557

[Franklin]

hello @Kirubel Tesfaye

I change the bean id

<entry key="Confluence:name=MailTaskQueueFranklin">
<bean class="com.atlassian.confluence.jmx.TaskQueueWrapper"><constructor-arg
ref="mailTaskQueue"/></bean>
</entry>

but it told me 

HTTP Status 500 – Internal Server Error

---

Type Exception Report

Message Unable to register MBean [com.atlassian.confluence.jmx.TaskQueueWrapper@2bd79177] with key 'Confluence:name=MailTaskQueueFranklin'; nested exception is javax.management.InstanceAlreadyExistsException: Confluence:name=MailTaskQueueFranklin

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

org.springframework.jmx.export.UnableToRegisterMBeanException: Unable to register MBean [com.atlassian.confluence.jmx.TaskQueueWrapper@2bd79177] with key 'Confluence:name=MailTaskQueueFranklin'; nested exception is javax.management.InstanceAlreadyExistsException: Confluence:name=MailTaskQueueFranklin
 org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:625)
 org.springframework.jmx.export.MBeanExporter.registerBeans(MBeanExporter.java:550)
 org.springframework.jmx.export.MBeanExporter.afterSingletonsInstantiated(MBeanExporter.java:432)
 org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:792)
 org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
 org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
 org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444)
 org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326)
 com.atlassian.config.spring.BootstrappedContainerContext.refresh(BootstrappedContainerContext.java:22)
 com.atlassian.confluence.tenant.TenantedContainerContext.refresh(TenantedContainerContext.java:24)
 com.atlassian.confluence.setup.actions.AbstractSetupAction.lambda$transitionFromColdToVacantState$0(AbstractSetupAction.java:152)
 java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
 com.atlassian.confluence.tenant.TenantGate$3.call(TenantGate.java:145)
 com.atlassian.confluence.setup.actions.AbstractSetupAction.transitionFromColdToVacantState(AbstractSetupAction.java:159)
 com.atlassian.confluence.setup.actions.SetupEmbeddedDatabaseAction.setupDatabase(SetupEmbeddedDatabaseAction.java:19)
 com.atlassian.confluence.setup.actions.AbstractDatabaseCreationAction.execute(AbstractDatabaseCreationAction.java:36)
 com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:168)
 com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
 com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
 com.atlassian.confluence.core.ConfluenceLicenseInterceptor.intercept(ConfluenceLicenseInterceptor.java:66)
 com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
 com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
 com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
 com.atlassian.confluence.validation.MessageHolderInterceptor.intercept(MessageHolderInterceptor.java:37)
 com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)

[Franklin]

When I set the confluence`s Database,it will tell me this mistake

[Franklin]

I use this

[Kirubel Tesfaye]

@Franklin,

Do you have other deployed atlassian product using the same tomcat server? If so deploying multiple Atlassian applications in a single Tomcat container is not supported.

[Kirubel Tesfaye]

If you don't have other atlassian product installed try the resolution in the link below.

https://confluence.atlassian.com/confkb/unable-to-start-confluence-due-to-jmx-182158269.html