[ https://issues.apache.org/jira/browse/JCR-1440?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jukka Zitting updated JCR-1440: ------------------------------- Status: Patch Available (was: Open) > 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 Content Repository > Issue Type: Bug > Components: clustering, jackrabbit-core > Affects Versions: core 1.4.1, 1.4 > Environment: Vista JDK 1.5.0_12. Using Derby and Derby Client > 10.1.2.1 > Reporter: Micah Whitacre > Priority: Critical > Attachments: jackrabbit-1.5-JCR-1440.tar.gz, > jcr-1440-workaround.patch, repository1.xml, > SimpleJackrabbitConflictTest.java, 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) -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.