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https://issues.apache.org/jira/browse/JCR-1440?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Micah Whitacre updated JCR-1440:
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Attachment: SimpleJackRabbitTest.zip
The test I used to create this exception and the two repository configuration
files I used to configure the two nodes.
> NPE Thrown when two Cluster Nodes are hitting the same underlying database.
> ---------------------------------------------------------------------------
>
> Key: JCR-1440
> URL: https://issues.apache.org/jira/browse/JCR-1440
> Project: Jackrabbit
> Issue Type: Bug
> Affects Versions: 1.4, core 1.4.1
> Environment: Vista JDK 1.5.0_12. Using Derby and Derby Client
> 10.1.2.1
> Reporter: Micah Whitacre
> Priority: Critical
> Attachments: SimpleJackRabbitTest.zip
>
>
> I've created a test that creates two repositories with clustering enabled
> that are backed by the same database. Using the following workflow causes a
> NullPointerException to be thrown.
> The workflow I'm using is:
> The root node is versioned.
> ClusterNode1 creates a versioned child node named "foo".
> The test waits to make sure the syncDelay has passed so ClusterNode2 will
> notice the newly created node.
> ClusterNode2 retrieves the "foo" child node and removes it.
> The test waits for the change ClusterNode1 to sync with that change.
> ClusterNode1 tries to create another new node however a NullPointerException
> is thrown when the it tries to checkout the rootNode.
> java.lang.NullPointerException: null values not allowed
> at
> org.apache.commons.collections.map.AbstractReferenceMap.put(AbstractReferenceMap.java:251)
> at
> org.apache.jackrabbit.core.version.VersionManagerImpl.getItem(VersionManagerImpl.java:280)
> at
> org.apache.jackrabbit.core.version.XAVersionManager.getItem(XAVersionManager.java:334)
> at
> org.apache.jackrabbit.core.version.AbstractVersionManager.getVersion(AbstractVersionManager.java:87)
> at
> org.apache.jackrabbit.core.NodeImpl.getBaseVersion(NodeImpl.java:3198)
> at org.apache.jackrabbit.core.NodeImpl.checkout(NodeImpl.java:2991)
> at
> com.cerner.system.configuration.repository.jcr.SimpleJackrabbitConflictTest.testNullPointerExceptionThrown(SimpleJackrabbitConflictTest.java:96)
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