NPE in VelocityArtifactPreprocessor
-----------------------------------
Key: ACE-257
URL: https://issues.apache.org/jira/browse/ACE-257
Project: ACE
Issue Type: Bug
Reporter: J.W. Janssen
In some situations a NPE is thrown from the VelocityArtifactPreprocessor, like:
java.lang.NullPointerException
at java.security.MessageDigest.update(MessageDigest.java:293)
at java.security.MessageDigest.digest(MessageDigest.java:368)
at
org.apache.ace.client.repository.helper.base.VelocityArtifactPreprocessor.hash(VelocityArtifactPreprocessor.java:313)
at
org.apache.ace.client.repository.helper.base.VelocityArtifactPreprocessor.getHashForVersion(VelocityArtifactPreprocessor.java:193)
at
org.apache.ace.client.repository.helper.base.VelocityArtifactPreprocessor.needsNewVersion(VelocityArtifactPreprocessor.java:99)
at
org.apache.ace.client.repository.impl.ArtifactRepositoryImpl.needsNewVersion(ArtifactRepositoryImpl.java:516)
at
org.apache.ace.client.repository.stateful.impl.StatefulTargetRepositoryImpl.needsNewVersion(StatefulTargetRepositoryImpl.java:756)
at
org.apache.ace.client.repository.stateful.impl.StatefulTargetObjectImpl.determineStoreState(StatefulTargetObjectImpl.java:274)
at
org.apache.ace.client.repository.stateful.impl.StatefulTargetObjectImpl.determineStatus(StatefulTargetObjectImpl.java:223)
at
org.apache.ace.client.repository.stateful.impl.StatefulTargetRepositoryImpl.handleEvent(StatefulTargetRepositoryImpl.java:749)
at
org.apache.felix.eventadmin.impl.tasks.HandlerTaskImpl.execute(HandlerTaskImpl.java:87)
at
org.apache.felix.eventadmin.impl.tasks.SyncDeliverTasks$1.run(SyncDeliverTasks.java:234)
at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(Unknown
Source)
at java.lang.Thread.run(Thread.java:680)
The exact causes are not entirely known yet...
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