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From Kwi De Silva <>
Subject JPA - PCRegistry consuming 80% of Java heap - Production Error - Help!
Date Fri, 10 Sep 2010 20:34:21 GMT
We have a J2EE App running in Weblogic 10.3 and are receiving
OutOfMemoryException's.   A dump of the heap shows that
org.apache.openjpa.enhance.PCRegistry is taking up 79.91% of the heap
(see below).

Class Name      | Shallow Heap       | Retained Heap       | Percentage
class org.apache.openjpa.enhance.PCRegistry |  16       |
234,453,760             |     79.91%

JVM Params are listed below

-Xms1024m -Xmx1024m -XX:PermSize=256m -XX:MaxPermSize=256m
-Dweblogic.Domain=mydomain -Djava.awt.headless=true -Duser.language=en
-Duser.region=US -Dweblogic.Environment=prod

We are using OpenJPA shipped with WL10.3, the name of the JAR file is

The JPA Runtime appears to be using BEA Kodo 4.2.0load03

Has anyone ANY idea what is going on here. The server runs out of
memory after a week or 2, and needs to be recycled.

Any help greatly appreciated :-(

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