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OPENJPA-2042: Diagnostics for Application Managed EntityManagerFactory leaks. 

git-svn-id: https://svn.apache.org/repos/asf/openjpa/branches/2.0.x@1338900 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jody Grassel 2012-05-15 21:20:13 +00:00
parent 8052dfd4ee
commit 7b36aa53c5
1 changed files with 9 additions and 3 deletions
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12
openjpa-kernel/src/main/java/org/apache/openjpa/enhance/PCRegistry.java
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@ -26,6 +26,7 @@ import java.util.Map;
import org.apache.openjpa.lib.util.Localizer;
import org.apache.openjpa.lib.util.ReferenceMap;
import org.apache.openjpa.lib.util.concurrent.ConcurrentReferenceHashMap;
import org.apache.openjpa.lib.util.concurrent.ConcurrentReferenceHashSet;
import org.apache.openjpa.util.UserException;
/**
@ -44,7 +45,9 @@ public class PCRegistry {
ReferenceMap.HARD);
// register class listeners
private static final Collection<RegisterClassListener> _listeners = new LinkedList<RegisterClassListener>();
// Weak reference prevents OutOfMemeoryError as described in OPENJPA-2042
private static final Collection<RegisterClassListener> _listeners =
new ConcurrentReferenceHashSet<RegisterClassListener>(ConcurrentReferenceHashSet.WEAK);
/**
* Register a {@link RegisterClassListener}.
@ -201,8 +204,11 @@ public class PCRegistry {
_metas.put(pcClass, meta);
}
synchronized (_listeners) {
for (RegisterClassListener r : _listeners)
r.register(pcClass);
for (RegisterClassListener r : _listeners) {
if (r != null) {
r.register(pcClass);
}
}
}
}