Kedar Mhaswade wrote:
>
>> most likely residing in the JMX HTTP connector.
>
> Do you have any definitive reasons to believe so, or is it just a (wild)
> guess based on stack trace?
>
> As an aside, does JSR-88 talk about thread-safety of the deployment
> operations?
> Pardon my ignorance here.
I was going to ask the same thread-safety question about AMX! I am in
the process of looking into our JSR-88 implementation to check for
thread safety, and of course that layers on AMX.
-Tim
>
> Kedar
>
>> did you talk to Lloyd about this ?
>>
>> Jerome
>>
>> vince kraemer wrote:
>>
>>> I am using GF V1 U1 Build 11.
>>>
>>> I have got an intermittent problem when I use JSR-88 APIs to do
>>> deployment on multi-processor boxes.
>>>
>>> Here is one of the stack traces that I have seen...
>>>
>>> javax.enterprise.deploy.spi.exceptions.TargetException: Error
>>> getting required modules
>>> at
>>> com.sun.enterprise.deployapi.SunDeploymentManager.getModules(SunDeploymentManager.java:380)
>>>
>>> at
>>> com.sun.enterprise.deployapi.SunDeploymentManager.getAvailableModules(SunDeploymentManager.java:315)
>>>
>>> at
>>> org.netbeans.modules.j2ee.sun.ide.dm.SunDeploymentManager.getAvailableModules(SunDeploymentManager.java:506)
>>>
>>> at
>>> org.netbeans.modules.j2ee.deployment.impl.TargetServer.getAvailableTMIDsMap(TargetServer.java:298)
>>>
>>> at
>>> org.netbeans.modules.j2ee.deployment.impl.TargetServer.processLastTargetModules(TargetServer.java:334)
>>>
>>> at
>>> org.netbeans.modules.j2ee.deployment.impl.TargetServer.init(TargetServer.java:108)
>>>
>>> at
>>> org.netbeans.modules.j2ee.deployment.impl.TargetServer.deploy(TargetServer.java:445)
>>>
>>> [catch] at
>>> org.netbeans.modules.j2ee.deployment.devmodules.api.Deployment.deploy(Deployment.java:106)
>>>
>>> at org.netbeans.modules.j2ee.ant.Deploy.execute(Deploy.java:82)
>>> at
>>> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
>>> at org.apache.tools.ant.Task.perform(Task.java:364)
>>> at org.apache.tools.ant.Target.execute(Target.java:341)
>>> at org.apache.tools.ant.Target.performTasks(Target.java:369)
>>> at
>>> org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
>>> at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
>>> at
>>> org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
>>>
>>> at
>>> org.apache.tools.ant.Project.executeTargets(Project.java:1068)
>>> at
>>> org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:240)
>>>
>>> at
>>> org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:293)
>>>
>>> at
>>> org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:131)
>>> Caused by: java.lang.reflect.UndeclaredThrowableException
>>> at $Proxy14.waitAMXReady(Unknown Source)
>>> at
>>> com.sun.enterprise.deployapi.SunDeploymentManager.getRootProxy(SunDeploymentManager.java:1627)
>>>
>>> at
>>> com.sun.enterprise.deployapi.SunDeploymentManager.getModulesOnATarget(SunDeploymentManager.java:397)
>>>
>>> at
>>> com.sun.enterprise.deployapi.SunDeploymentManager.getModules(SunDeploymentManager.java:366)
>>>
>>> ... 19 more
>>> Caused by: java.io.IOException
>>> at
>>> java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2232)
>>>
>>> at
>>> java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2698)
>>>
>>> at
>>> java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:750)
>>> at java.io.ObjectInputStream.<init>(ObjectInputStream.java:268)
>>> at
>>> com.sun.enterprise.admin.jmx.remote.comm.ServletConnection.receive(ServletConnection.java:107)
>>>
>>> at
>>> com.sun.enterprise.admin.jmx.remote.comm.MBeanServerMessageConductor.invoke(MBeanServerMessageConductor.java:62)
>>>
>>> at
>>> com.sun.enterprise.admin.jmx.remote.internal.RemoteMBeanServerConnection.invoke(RemoteMBeanServerConnection.java:408)
>>>
>>> at
>>> javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:201)
>>>
>>> at
>>> com.sun.appserv.management.util.jmx.MBeanProxyHandler.invoke(MBeanProxyHandler.java:647)
>>>
>>> at
>>> com.sun.appserv.management.client.handler.AMXProxyHandler._invoke(AMXProxyHandler.java:1091)
>>>
>>> at
>>> com.sun.appserv.management.client.handler.AMXProxyHandler.invoke(AMXProxyHandler.java:1002)
>>>
>>> ... 23 more
>>>
>>>
>>> Are the JSR-88 apis supposed to be safe for use in real
>>> multithreaded conditions?
>>>
>>> Thanks,
>>> vbk
>>>
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