[JCR-1329] Unable to commit a new version of a nt:file node within a transaction using a specfic configuration

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.4
• Component/s: config, transactions
• Assignee: Unassigned
• Reporter: Eric Norman
• Created: 20/Jan/08 22:11
• Updated: 17/Sep/08 12:49
• Resolved: 16/Feb/08 15:32

Description

A NullPointerException is thrown when committing a version of a nt:file node within a transaction using the following repository configuration:

1. File data size > 1024 bytes (causes the BLOB to use a temp file, otherwise the data is kept in memory)
2. Persistance Manager: org.apache.jackrabbit.core.state.db.DerbyPersistenceManager
3. No <DataStore> configured in repository.xml

The cause appears to be that during the commit operation BLOBInTempFile.discard() is called which deletes the temp file, then later on, BLOBInTempFile.getStream() is called on the same object, but the file has already been deleted, so it fails resulting in the following exception:

121375 [main] ERROR org.apache.jackrabbit.core.persistence.db.DatabasePersistenceManager - failed to write property state: c4c5b6ec-b12d-419d-8a1f-03eb69f30aee/

{http://www.jcp.org/jcr/1.0}

data
java.lang.NullPointerException
at java.io.FileInputStream.<init>(FileInputStream.java:103)
at org.apache.jackrabbit.core.value.BLOBInTempFile.getStream(BLOBInTempFile.java:145)
at org.apache.jackrabbit.core.persistence.util.Serializer.serialize(Serializer.java:198)
at org.apache.jackrabbit.core.persistence.db.DatabasePersistenceManager.store(DatabasePersistenceManager.java:476)
at org.apache.jackrabbit.core.persistence.AbstractPersistenceManager.store(AbstractPersistenceManager.java:75)
at org.apache.jackrabbit.core.persistence.db.DatabasePersistenceManager.store(DatabasePersistenceManager.java:282)
at org.apache.jackrabbit.core.state.SharedItemStateManager$Update.end(SharedItemStateManager.java:688)
at org.apache.jackrabbit.core.state.XAItemStateManager.commit(XAItemStateManager.java:162)
at org.apache.jackrabbit.core.version.XAVersionManager.commit(XAVersionManager.java:476)
at org.apache.jackrabbit.core.TransactionContext.commit(TransactionContext.java:189)
at org.apache.jackrabbit.core.XASessionImpl.commit(XASessionImpl.java:339)
at TestCase.main(TestCase.java:81)

Workarounds:
1. Use a different persistance manager. 'org.apache.jackrabbit.core.persistence.bundle.DerbyPersistenceManager' does not fail.
2. Configure a <DataStore> in your repository.xml. This results in a different code path that seems to work.