Stephan Hagedorn created OPENJPA-2257:
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Summary: Concurreny in
org.apache.openjpa.persistence.EntityManagerImpl.getProperties leads to
NullPointer and ConcurrentModificationException
Key: OPENJPA-2257
URL: https://issues.apache.org/jira/browse/OPENJPA-2257
Project: OpenJPA
Issue Type: Bug
Components: jpa
Affects Versions: 2.1.2
Environment: AIX 6.1 (64-bit)
WebSphere Application Server V8.0 (32-bit)
Reporter: Stephan Hagedorn
A call of EntityManager.getProperties() can lead to NullPointer and
ConcurrentModificationException. Issue occurs right after start up of the
overlying JEE application if multiple EntityManager instance are created at
same time.
Please find the issued stack trace below:
Caused by: java.lang.NullPointerException
at java.lang.String.compareTo(String.java:482)
at java.lang.String.compareTo(String.java:31)
at java.util.TreeMap.cmp(TreeMap.java:4514)
at java.util.TreeMap.putImpl(TreeMap.java:4556)
at java.util.TreeMap.put(TreeMap.java:4536)
at java.util.TreeSet.add(TreeSet.java:122)
at
org.apache.openjpa.lib.conf.ConfigurationImpl.getPropertyKeys(ConfigurationImpl.java:708)
at
org.apache.openjpa.kernel.BrokerImpl.getSupportedProperties(BrokerImpl.java:729)
at
org.apache.openjpa.kernel.DelegatingBroker.getSupportedProperties(DelegatingBroker.java:223)
at
org.apache.openjpa.persistence.EntityManagerImpl.getProperties(EntityManagerImpl.java:1624)
... 33 more
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