[arquillian-issues] [JBoss JIRA] (ARQ-577) Enhance exception messages for cases where Drone instances cannot be destroyed because no context was created

[Aslak Knutsen (Updated) (JIRA)]

     [ https://issues.jboss.org/browse/ARQ-577?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aslak Knutsen updated ARQ-577:
------------------------------

    Fix Version/s: drone_1.0.0.CR3
                       (was: drone_1.0.0.Final)

    
> Enhance exception messages for cases where Drone instances cannot be destroyed because no context was created
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: ARQ-577
>                 URL: https://issues.jboss.org/browse/ARQ-577
>             Project: Arquillian
>          Issue Type: Enhancement
>      Security Level: Public(Everyone can see) 
>          Components: Extension - Drone
>    Affects Versions: drone_1.0.0.CR2
>            Reporter: Karel Piwko
>            Assignee: Karel Piwko
>            Priority: Minor
>             Fix For: drone_1.0.0.CR3
>
>
> When a deployment fails, during cleanup Drone instances are garbage-collected.
> There is a check for Drone instance to be null, however it might happen that there is even no context created.
> If there is no context, Drone throws following NPE:
> {code}
> java.lang.NullPointerException
> 	at org.jboss.arquillian.drone.impl.DroneDestructor.destroyClassScopedDrone(DroneDestructor.java:82)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
> 	at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99)
> 	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81)
> 	at org.jboss.arquillian.test.impl.TestContextHandler.createClassContext(TestContextHandler.java:68)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
> 	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
> 	at org.jboss.arquillian.test.impl.TestContextHandler.createSuiteContext(TestContextHandler.java:54)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
> 	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
> 	at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:134)
> 	at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:114)
> 	at org.jboss.arquillian.test.impl.EventTestRunnerAdaptor.afterClass(EventTestRunnerAdaptor.java:87)
> 	at org.jboss.arquillian.junit.Arquillian$3$1.evaluate(Arquillian.java:180)
> 	at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:290)
> 	at org.jboss.arquillian.junit.Arquillian.access$100(Arquillian.java:45)
> 	at org.jboss.arquillian.junit.Arquillian$3.evaluate(Arquillian.java:175)
> 	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
> 	at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:123)
> 	at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)
> 	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)
> 	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
> 	at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)
> 	at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:172)
> 	at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:104)
> 	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:70)
> {code}
> This NPE should either be wrapped (via Validate utils) or avoided.

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