[UIMA-229] Bad error message if aggregate descriptor flow contains undefined key

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.1
• Component/s: Core Java Framework
• Assignee: Adam P. Lally
• Reporter: Adam P. Lally
• Created: 25/Jan/07 16:37
• Updated: 25/Jan/07 20:23
• Resolved: 25/Jan/07 20:23

Description

If an aggregate descriptor's <fixedFlow> references a delegate key that's not defined anywhere, you get a NullPointerException instead of a helpful error message.

org.apache.uima.analysis_engine.AnalysisEngineProcessException
at org.apache.uima.analysis_engine.asb.impl.ASB_impl$AggregateCasIterator.processUntilNextOutputCas(ASB_impl.java:574)
at org.apache.uima.analysis_engine.asb.impl.ASB_impl$AggregateCasIterator.<init>(ASB_impl.java:393)
at org.apache.uima.analysis_engine.asb.impl.ASB_impl.process(ASB_impl.java:326)
at org.apache.uima.analysis_engine.impl.AggregateAnalysisEngine_impl.processAndOutputNewCASes(AggregateAnalysisEngine_impl.java:259)
at org.apache.uima.analysis_engine.impl.AnalysisEngineImplBase.process(AnalysisEngineImplBase.java:202)
at org.apache.uima.collection.impl.cpm.engine.ProcessingUnit.processNext(ProcessingUnit.java:1221)
at org.apache.uima.collection.impl.cpm.engine.ProcessingUnit.run(ProcessingUnit.java:668)
Caused by: java.lang.NullPointerException
at org.apache.uima.flow.impl.FixedFlowController$FixedFlowObject.next(FixedFlowController.java:181)
at org.apache.uima.analysis_engine.asb.impl.FlowContainer.next(FlowContainer.java:83)
at org.apache.uima.analysis_engine.asb.impl.ASB_impl$AggregateCasIterator.processUntilNextOutputCas(ASB_impl.java:506)
... 6 more