Unable to commit a new version of a nt:file node within a transaction using a
specfic configuration
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Key: JCR-1329
URL: https://issues.apache.org/jira/browse/JCR-1329
Project: Jackrabbit
Issue Type: Bug
Components: config, transactions
Affects Versions: 1.4
Reporter: Eric Norman
Attachments: TestCase.java
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.
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