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From "Bartosz Kowalewski (JIRA)" <j...@apache.org>
Subject [jira] Created: (ARIES-339) Aries builds fail due to incorrectly working setUp() methods in JMX itests
Date Tue, 15 Jun 2010 21:45:25 GMT
Aries builds fail due to incorrectly working setUp() methods in JMX itests
--------------------------------------------------------------------------

                 Key: ARIES-339
                 URL: https://issues.apache.org/jira/browse/ARIES-339
             Project: Aries
          Issue Type: Bug
          Components: JMX
            Reporter: Bartosz Kowalewski


1. There's a method annotated with @Before in the abstract test class. Most concrete test
classes also have methods annotated with @Before which inside their body also call the the
setUp() method from the abstract class. During a build both methods (the one from the abstract
class and the one from the concrete one) are called and the one from the subclass is called
first :|. This method  setups mbean server and then checks if required mbeans have been registered.
After it completes, the the setUp() method from the super class is called directly. It creates
a new mbean server - overrides the previous one. The new one is not prepared to be used inside
the test method as mbeans haven't been registered yet and there's no code that would wait
for those mbeans to be registered. This causes an exception to be thrown in various tests
and build to fail. Example:

java.lang.reflect.InvocationTargetException
	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.ops4j.pax.exam.rbc.internal.RemoteBundleContextImpl.remoteCall(RemoteBundleContextImpl.java:80)
	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 sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
	at sun.rmi.transport.Transport$1.run(Transport.java:159)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.reflect.InvocationTargetException
	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.ops4j.pax.exam.junit.extender.impl.internal.CallableTestMethodImpl.injectContextAndInvoke(CallableTestMethodImpl.java:134)
	at org.ops4j.pax.exam.junit.extender.impl.internal.CallableTestMethodImpl.call(CallableTestMethodImpl.java:101)
	... 19 more
Caused by: java.lang.reflect.UndeclaredThrowableException
	at $Proxy8.getExportedPackages(Unknown Source)
	at org.apache.aries.jmx.framework.BundleStateMBeanTest.testMBeanInterface(BundleStateMBeanTest.java:153)
	... 25 more
Caused by: javax.management.InstanceNotFoundException: osgi.core:type=bundleState,version=1.5
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(DefaultMBeanServerInterceptor.java:1094)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:833)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
	at javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:288)
	... 27 more

2. FrameworkMBeanTest does not wait for the FrameworkMBean at all.

3. Tests wait 5 seconds for mbeans to be registered. This is often not sufficient enough.

4. Some other minor changes are required.

A patch coming soon. 

Unfortunately, the list of JMX itests issues provided above is not complete. Additional experiments
need to be carried out and some other fixes will probably be required.

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