[OPENJPA-2204] NPE in JDBCStoreManager with Trace turned on

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.1, 2.3.0
• Fix Version/s: 2.3.0
• Component/s: jdbc, logging
• Assignee: Kevin W. Sutter
• Reporter: Kevin W. Sutter
• Created: 31/May/12 13:47
• Updated: 06/Jun/15 21:19
• Resolved: 05/Jun/12 02:23

Description

Reporting JIRA on behalf of a user without access to JIRAs...

OK - nearly there! Presumably because we're no longer hooked in to the container, OpenJPA was pumping out its log messages to system out. I set openjpa.Log to "commons" and, as desired, it now sends trace to java.util.logging. The only problem is that, when I set trace to "openjpa.*=all" I get a NullPointerException (that isn't there when trace is turned off):

[31/05/12 11:31:05:576 BST] 00000020 id= com.ibm.amc.AmcRuntimeException 3 printStackTrace java.lang.NullPointerException
at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.find(JDBCStoreManager.java:979)
at org.apache.openjpa.jdbc.meta.strats.UntypedPCValueHandler.toObjectValue(UntypedPCValueHandler.java:127)
at org.apache.openjpa.jdbc.meta.strats.HandlerStrategies.loadObject(HandlerStrategies.java:207)
at org.apache.openjpa.jdbc.meta.strats.HandlerCollectionTableFieldStrategy.loadElement(HandlerCollectionTableFieldStrategy.java:78)
at org.apache.openjpa.jdbc.meta.strats.StoreCollectionFieldStrategy.load(StoreCollectionFieldStrategy.java:558)
at org.apache.openjpa.jdbc.meta.FieldMapping.load(FieldMapping.java:934)
at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:673)
at com.ibm.ws.persistence.jdbc.kernel.WsJpaJDBCStoreManager.load(WsJpaJDBCStoreManager.java:130)
at org.apache.openjpa.kernel.DelegatingStoreManager.load(DelegatingStoreManager.java:117)
at org.apache.openjpa.kernel.ROPStoreManager.load(ROPStoreManager.java:78)
at org.apache.openjpa.kernel.StateManagerImpl.loadFields(StateManagerImpl.java:3071)
at org.apache.openjpa.kernel.StateManagerImpl.loadField(StateManagerImpl.java:3148)
at org.apache.openjpa.kernel.StateManagerImpl.beforeAccessField(StateManagerImpl.java:1612)
at org.apache.openjpa.kernel.StateManagerImpl.accessingField(StateManagerImpl.java:1597)
at com.ibm.amc.server.action.impl.ActionStatusImpl.pcGetupdates(ActionStatusImpl.java)
at com.ibm.amc.server.action.impl.ActionStatusImpl.getUpdates(ActionStatusImpl.java:206)

This NPE looks to be due to dumping the parameters for the JDBCStoreManager.find():

if (_log.isTraceEnabled())

{ _log.trace("find: oid="+oid+" "+vm.getDeclaredTypeMapping().getDescribedType()); }

And, either vm or vm.getDeclaredTypeMapping() is null...