[OPENJPA-1890] NPE is thrown when an Embeddable object is set more than once to a managed entity

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.1
• Fix Version/s: 2.0.2, 2.1.0
• Assignee: Fay Wang
• Reporter: Fay Wang
• Created: 17/Nov/10 20:57
• Updated: 12/Jan/11 23:03
• Resolved: 12/Jan/11 23:03

Description

java.lang.NullPointerException
at org.apache.openjpa.kernel.SingleFieldManager.dereferenceEmbedDependent(SingleFieldManager.java:432)
at org.apache.openjpa.kernel.SingleFieldManager.delete(SingleFieldManager.java:317)
at org.apache.openjpa.kernel.SingleFieldManager.dereferenceDependent(SingleFieldManager.java:294)
at org.apache.openjpa.kernel.StateManagerImpl.settingObjectField(StateManagerImpl.java:2031)
at embeddable.Department.pcSetdepartmentEmbeddable(Department.java)
at embeddable.Department.setDepartmentEmbeddable(Department.java:62)
at embeddable.TestEmbeddable.testFind(TestEmbeddable.java:52)

where:

private DepartmentEmbeddable makeEmbeddable()

{ DepartmentEmbeddable d1 = new DepartmentEmbeddable(); d1.setDeptname("name"); d1.setMgrno("qw"); return d1; }

@Override
public void test()

{ Department d = em.find(Department.class, "1"); DepartmentEmbeddable d2 = new DepartmentEmbeddable(); d.setDepartmentEmbeddable(makeEmbeddable()); d.setDepartmentEmbeddable(makeEmbeddable()); <== NPE is thrown }