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OPENJPA-285. I am going ahead with the integration of Kevan's patches for the two memory leaks found in OpenJPA while testing Geronimo. I will post more details in the Issue. 

git-svn-id: https://svn.apache.org/repos/asf/openjpa/trunk@561970 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Kevin W. Sutter 2007-08-01 21:55:44 +00:00
parent 6128ddbc2d
commit f61968f302
2 changed files with 19 additions and 2 deletions
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17
openjpa-kernel/src/main/java/org/apache/openjpa/enhance/PCRegistry.java
View File

@ -202,6 +202,23 @@ public class PCRegistry {
}
}
/**
* De-Register all metadata associated with the given ClassLoader.
* Allows ClassLoaders to be garbage collected.
*
* @param cl the ClassLoader
*/
public static void deRegister(ClassLoader cl) {
synchronized (_metas) {
for (Iterator i = _metas.keySet().iterator(); i.hasNext();) {
Class pcClass = (Class) i.next();
if (pcClass.getClassLoader() == cl) {
_metas.remove(pcClass);
}
}
}
}
/**
* Returns a collection of class objects of the registered
* persistence-capable classes.

4
openjpa-kernel/src/main/java/org/apache/openjpa/util/ImplHelper.java
View File

@ -39,7 +39,6 @@ import org.apache.openjpa.kernel.StoreManager;
import org.apache.openjpa.lib.util.Closeable;
import org.apache.openjpa.lib.util.ReferenceMap;
import org.apache.openjpa.lib.util.UUIDGenerator;
import org.apache.openjpa.lib.util.concurrent.ConcurrentHashMap;
import org.apache.openjpa.lib.util.concurrent.ConcurrentReferenceHashMap;
import org.apache.openjpa.meta.ClassMetaData;
import org.apache.openjpa.meta.FieldMetaData;
@ -244,7 +243,8 @@ public class ImplHelper {
Boolean isAssignable = null;
Map assignableTo = (Map) _assignableTypes.get(from);
if (assignableTo == null) { // "to" cache doesn't exist, so create it...
assignableTo = new ConcurrentHashMap();
assignableTo = new ConcurrentReferenceHashMap(ReferenceMap.WEAK,
ReferenceMap.HARD);
_assignableTypes.put(from, assignableTo);
} else { // "to" cache exists...
isAssignable = (Boolean) assignableTo.get(to);