[jboss-dev-forums] [Design of POJO Server] - Re: First real SARDeployer porting issue

[scott.stark@jboss.org]

The next issue is that the thread context class loader seen in the mbean invocations as in this stack:

  | Thread [VFSDeploymentScanner]
  | 	InvocationContext.loadClass(String) line: 317	
  | 	InvocationContext.getReturnTypeClass() line: 198	
  | 	Invocation.getReturnTypeClass() line: 121	
  | 	ModelMBeanOperationInterceptor.invoke(Invocation) line: 65	
  | 	Invocation.invoke() line: 90	
  | 	XMBean(AbstractMBeanInvoker).invoke(String, Object[], String[]) line: 264	
  | 	MBeanServerImpl.invoke(ObjectName, String, Object[], String[]) line: 668	
  | 	ServiceCreator.installPlainMBean(MBeanServer, ObjectName, ServiceMetaData) line: 199	
  | 	ServiceCreator.install(MBeanServer, ObjectName, ServiceMetaData, Object) line: 111	
  | 	InstantiateAction.installAction(ServiceControllerContext) line: 45	
  | 	InstantiateAction(ServiceControllerContextAction).install(ControllerContext) line: 46	
  | 	ServiceControllerContextActions(AbstractControllerContextActions).install(ControllerContext, ControllerState, ControllerState) line: 51	
  | 	ServiceControllerContext(AbstractControllerContext).install(ControllerState, ControllerState) line: 226	
  | 	ServiceControllerContext.install(ControllerState, ControllerState) line: 187	
  | 	AbstractKernelController(AbstractController).install(ControllerContext, ControllerState, ControllerState) line: 596	
  | 	AbstractKernelController(AbstractController).incrementState(ControllerContext, boolean) line: 346	
  | 	AbstractKernelController(AbstractController).resolveContexts(ControllerState, ControllerState, boolean) line: 438	
  | 	AbstractKernelController(AbstractController).resolveContexts(boolean) line: 379	
  | 	AbstractKernelController(AbstractController).change(ControllerContext, ControllerState, boolean) line: 263	
  | 	AbstractKernelController(AbstractController).change(ControllerContext, ControllerState) line: 164	
  | 	ServiceController.install(Element, ObjectName) line: 228	
  | 	SARDeployer.deploy(DeploymentContext) line: 309	
  | 	DeploymentGraphVisitor.visit(Graph<DeploymentContext>, Vertex<DeploymentContext>) line: 74	
  | 	Graph<T>.depthFirstSearch(Vertex<T>, VisitorEX<T,E>) line: 225	
  | 	MainDeployerImpl.deploy(Deployment) line: 321	
  | 	VFSDeploymentScannerImpl.deploy(VirtualFile) line: 608	
  | 	VFSDeploymentScannerImpl.scan() line: 520	
  | 	VFSDeploymentScannerImpl.run() line: 376	
  | 	Executors$RunnableAdapter<T>.call() line: 417	
  | 	FutureTask$Sync.innerRunAndReset() line: 280	
  | 	ScheduledThreadPoolExecutor$ScheduledFutureTask<V>(FutureTask<V>).runAndReset() line: 135	
  | 	ScheduledThreadPoolExecutor$ScheduledFutureTask<V>.access$101(ScheduledThreadPoolExecutor$ScheduledFutureTask) line: 65	
  | 	ScheduledThreadPoolExecutor$ScheduledFutureTask<V>.runPeriodic() line: 142	
  | 	ScheduledThreadPoolExecutor$ScheduledFutureTask<V>.run() line: 166	
  | 	ThreadPoolExecutor$Worker.runTask(Runnable) line: 650	
  | 	ThreadPoolExecutor$Worker.run() line: 675	
  | 	Thread.run() line: not available
  | 

is neither the bean nor SARDeployer class loader. Its the server core org.jboss.system.server.NoAnnotationURLClassLoader, which does not have the jmx classes in the current setup. These are only visible via the JMXClassLoader instance associated with the JMXKernel and SARDeployer beans.

The VFSClassLoader is not a valid ClassLoadingDomain/DomainClassLoader that can support a unified typesystem currently. This is something I'm going to work on next week while I"m on vacation.

What I want to do for now is punt and put the jmx class back into the core server loader class loader and spend a couple of hours cleaning up as many SARDeployer issues as I can, and then document the curent state of the VDF impl in the MC_VDF_WORK branch so some progress on porting deployer can be done next week while I'm out.


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