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Posted to dev@avalon.apache.org by bu...@apache.org on 2002/12/04 13:56:12 UTC

DO NOT REPLY [Bug 15060] New: - deadlock in ResourceLimitingPool

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=15060

deadlock in ResourceLimitingPool

           Summary: deadlock in ResourceLimitingPool
           Product: Avalon
           Version: unspecified
          Platform: Sun
        OS/Version: Solaris
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: Excalibur
        AssignedTo: avalon-dev@jakarta.apache.org
        ReportedBy: harald-n@gmx.de


My application is running on a machine with 4 processors. After some hour my application don't work. 

In the stack trace I found a deadlock. 

 Found one Java-level deadlock:
 =============================
 "default Worker #2":
   waiting to lock monitor 0xd8618 (object 0xf1414bf0, a sun.misc.Launcher$ExtClassLoader),
   which is held by "default Worker #63"
 "default Worker #63":
   waiting to lock monitor 0xd8ab0 (object 0xf1414528, a java.lang.Object),
   which is held by "default Worker #2"
 
 Java stack information for the threads listed above:
 ===================================================
 "default Worker #2":
 	at java.lang.ClassLoader.loadClass(ClassLoader.java:288)
 	- waiting to lock <f1414bf0> (a sun.misc.Launcher$ExtClassLoader)
 	at java.lang.ClassLoader.loadClass(ClassLoader.java:292)
 	- locked <f14157a0> (a sun.misc.Launcher$AppClassLoader)
 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:265)
 	- locked <f14157a0> (a sun.misc.Launcher$AppClassLoader)
 	at java.lang.ClassLoader.loadClass(ClassLoader.java:292)
 	- locked <f14143e0> (a org.apache.avalon.phoenix.components.classloader.PolicyClassLoader)
 	at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
 	at javax.xml.parsers.FactoryFinder.newInstance(FactoryFinder.java:93)
                    :
                    :
 	at sun.reflect.GeneratedConstructorAccessor9.newInstance(Unknown Source)
 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
 	at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
 	at org.apache.avalon.excalibur.pool.DefaultObjectFactory.newInstance(DefaultObjectFactory.java:58)
 	at org.apache.avalon.excalibur.pool.ResourceLimitingPool.newPoolable(ResourceLimitingPool.java:631)
 	at org.apache.avalon.excalibur.pool.ResourceLimitingPool.get(ResourceLimitingPool.java:361)
 	- locked <f1414528> (a java.lang.Object)
                    :
                    :
 	- locked <f14142a8> (a de.denic.blocks.threadpool.DenicWorkerThread)
 "default Worker #63":
 	at org.apache.avalon.excalibur.pool.ResourceLimitingPool.put(ResourceLimitingPool.java:400)
 	- waiting to lock <f1414528> (a java.lang.Object)
                    :
                    :
 	- locked <f1854268> (a de.denic.blocks.threadpool.DenicWorkerThread)
 
 Found 1 deadlock.

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