[seam-issues] [JBoss JIRA] (JBSEAM-4993) Deadlock between SFSB EJB lock and Component.getInstanceFromFactory factoryLock

Tue, 03 Jul 2012 05:32:46 -0700

In the current version there is still a deadlock between SFSB Synchronization lock and the component lock used by Component.getInstanceFromFactory in a specific case.

The problematic case is when the factory is used (mediately or immediately) from another method in the same SFSB, such as in the following case:

@Stateful
   @Scope(ScopeType.SESSION)
   @Name("factoryLock.test")
   public static class FactoryLockAction implements FactoryLockLocal
   {
      public String testSameFactory() {
         Thread.sleep(500);
         return (String)Component.getInstance("factoryLock.testString", true);
      }
      
      @Factory(value="factoryLock.testString", scope=ScopeType.SESSION)
      public String getTestString() {
         return "testString";
      }
      @Remove
      public void remove() {}
   }


with one thread evaluating #{factoryLock.test.testSameFactory()} and the other #{factoryLock.testString}



See FactoryLockTest.sameFactoryLock
Change By: Marek Schmidt (03/Jul/12 8:29 AM)
Resolution: Done
Status: Resolved Reopened
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