[jboss-dev-forums] [JBoss AS7 Development] - Re: Lazy modules resolving / linking

[Ales Justin]

Ales Justin [http://community.jboss.org/people/alesj] created the discussion

"Re: Lazy modules resolving / linking"

To view the discussion, visit: http://community.jboss.org/message/563685#563685

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> I'm looking into properly solving this.
After updating Module, I now simply try to reload based on Module's ClassLoader:

Module module = Module.getModule(target);
loader.updateModule(module, dependencySpec);
return new ClassLoaderLocalLoader(module.getClassLoader());

but this creates a deadlock:

main at 1, prio=5, in group 'main', status: 'waiting'
  java.lang.Thread.State: WAITING
      at java.lang.Object.wait(Object.java:-1)
      at java.lang.Object.wait(Object.java:485)
      at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:257)
      at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:52)
      at net.something.xyz.Module$1.run(Module.java:43)
      at org.jboss.as.modules.plugins.run.DefaultRuntime.execute(DefaultRuntime.java:64)
      at org.jboss.as.modules.Main.execute(Main.java:67)
      at org.jboss.asz.test.modules.ModulesTest.execute(ModulesTest.java:123)
      at org.jboss.asz.test.modules.ModulesTest.testArchive(ModulesTest.java:94)
      at org.jboss.asz.test.modules.ondemand.test.OnDemandTestCase.testBasic(OnDemandTestCase.java:47)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-1)
      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)

and

ClassLoader Thread at 1179 daemon, prio=5, in group 'main', status: 'runnable'
  java.lang.Thread.State: RUNNABLE
     blocks main at 1
      at java.lang.Class.forName0(Class.java:-1)
      at java.lang.Class.forName(Class.java:247)
      at org.jboss.modules.ClassLoaderLocalLoader.loadClassLocal(ClassLoaderLocalLoader.java:49)
      at org.jboss.as.modules.plugins.run.OnDemandLocalLoader.loadClassLocal(OnDemandLocalLoader.java:99)
      at org.jboss.modules.Module.loadModuleClass(Module.java:727)
      at org.jboss.modules.Module.loadModuleClass(Module.java:692)
      at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:186)
      at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:268)
      at org.jboss.modules.ConcurrentClassLoader.access$400(ConcurrentClassLoader.java:42)
      at org.jboss.modules.ConcurrentClassLoader$LoaderThread.run(ConcurrentClassLoader.java:337)
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