[jboss-jira] [JBoss JIRA] (WFLY-2692) infinite wait in BasicComponent#waitForComponentStart() causes server hang

[Thomas Frühbeck (JIRA)]

Thomas Frühbeck created WFLY-2692:
-------------------------------------

             Summary: infinite wait in BasicComponent#waitForComponentStart() causes server hang
                 Key: WFLY-2692
                 URL: https://issues.jboss.org/browse/WFLY-2692
             Project: WildFly
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: EE
    Affects Versions: 8.0.0.CR1
            Reporter: Thomas Frühbeck
            Assignee: David Lloyd


some error in deployment may cause infinite wait on BasicComponent#waitForComponentStart():

     protected void waitForComponentStart() {
        if (!gate) {
            // Block until successful start
            synchronized (this) {
               while (!gate) {
                    // TODO: check for failure condition
                    try {
                        wait();
 
The server life cycle management is completely blocked, no normal redeployment/shutdown will work!
Please provide some remedy (e.g. timed wait and fail?), IMHO this is really _very_ distressing for a production ready system.
 
Sample stack trace:
"MSC service thread 1-7" prio=10 tid=0x00007f6c60001800 nid=0x7af0 in Object.wait() [0x00007f6cbd785000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x00000000e20a0a20> (a org.jboss.as.ejb3.component.singleton.SingletonComponent)
        at java.lang.Object.wait(Object.java:503)
        at org.jboss.as.ee.component.BasicComponent.waitForComponentStart(BasicComponent.java:115)
        - locked <0x00000000e20a0a20> (a org.jboss.as.ejb3.component.singleton.SingletonComponent)
        at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:145)
        at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:133)
        at org.jboss.as.ee.component.BasicComponent.createInstance(BasicComponent.java:89)
        at org.jboss.as.ejb3.component.singleton.SingletonComponent.getComponentInstance(SingletonComponent.java:123)
        - locked <0x00000000e20bfa10> (a java.lang.Object)
        at org.jboss.as.ejb3.component.singleton.SingletonComponentInstanceAssociationInterceptor.processInvocation(SingletonComponentInstanceAssociationInterce
ptor.java:47)
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
        at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41)
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
        at org.jboss.as.ejb3.component.invocationmetrics.WaitTimeInterceptor.processInvocation(WaitTimeInterceptor.java:43)
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
        at org.jboss.as.ejb3.security.SecurityContextInterceptor.processInvocation(SecurityContextInterceptor.java:95)
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
        at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64)
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
        at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59)
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
        at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50)
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
        at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:55)
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
        at org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:64)
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
        at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:325)
        at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:437)
        at org.jboss.invocation.AccessCheckingInterceptor.processInvocation(AccessCheckingInterceptor.java:61)
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
        at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:325)
        at org.jboss.invocation.PrivilegedWithCombinerInterceptor.processInvocation(PrivilegedWithCombinerInterceptor.java:80)
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
        at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)
        at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:185)
        at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:182)
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
        at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)
        at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:73)


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