[UIMA-2373] Possible bug in FixedFlowController

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.0SDK
• Fix Version/s: 2.6.0SDK
• Assignee: Marshall Schor
• Reporter: Tommaso Teofili
• Created: 15/Feb/12 16:13
• Updated: 29/Apr/14 10:33
• Resolved: 14/Apr/14 21:25

Description

I am developing a series of Lucene tokenizers which can use UIMA for creating tokens via extracted annotations.
While doing a stress test with lots of different strings I experienced the following:

[junit] Testsuite: org.apache.lucene.analysis.uima.UIMATypeAwareAnalyzerTest
    [junit] Tests run: 2, Failures: 0, Errors: 1, Time elapsed: 92,061 sec
    [junit] 
    [junit] ------------- Standard Error -----------------
    [junit] The following exceptions were thrown by threads:
    [junit] *** Thread: Thread-9 ***
    [junit] java.lang.RuntimeException: java.io.IOException: org.apache.uima.analysis_engine.AnalysisEngineProcessException
    [junit] 	at org.apache.lucene.analysis.BaseTokenStreamTestCase$AnalysisThread.run(BaseTokenStreamTestCase.java:289)
    [junit] Caused by: java.io.IOException: org.apache.uima.analysis_engine.AnalysisEngineProcessException
    [junit] 	at org.apache.lucene.analysis.uima.UIMATypeAwareAnnotationsTokenizer.incrementToken(UIMATypeAwareAnnotationsTokenizer.java:87)
    [junit] 	at org.apache.lucene.analysis.BaseTokenStreamTestCase.assertTokenStreamContents(BaseTokenStreamTestCase.java:121)
    [junit] 	at org.apache.lucene.analysis.BaseTokenStreamTestCase.checkRandomData(BaseTokenStreamTestCase.java:371)
    [junit] 	at org.apache.lucene.analysis.BaseTokenStreamTestCase.checkRandomData(BaseTokenStreamTestCase.java:295)
    [junit] 	at org.apache.lucene.analysis.BaseTokenStreamTestCase$AnalysisThread.run(BaseTokenStreamTestCase.java:287)
    [junit] Caused by: org.apache.uima.analysis_engine.AnalysisEngineProcessException
    [junit] 	at org.apache.uima.analysis_engine.asb.impl.ASB_impl$AggregateCasIterator.processUntilNextOutputCas(ASB_impl.java:701)
    [junit] 	at org.apache.uima.analysis_engine.asb.impl.ASB_impl$AggregateCasIterator.<init>(ASB_impl.java:409)
    [junit] 	at org.apache.uima.analysis_engine.asb.impl.ASB_impl.process(ASB_impl.java:342)
    [junit] 	at org.apache.uima.analysis_engine.impl.AggregateAnalysisEngine_impl.processAndOutputNewCASes(AggregateAnalysisEngine_impl.java:267)
    [junit] 	at org.apache.uima.analysis_engine.impl.AnalysisEngineImplBase.process(AnalysisEngineImplBase.java:267)
    [junit] 	at org.apache.lucene.analysis.uima.BaseUIMATokenizer.analyzeInput(BaseUIMATokenizer.java:57)
    [junit] 	at org.apache.lucene.analysis.uima.UIMATypeAwareAnnotationsTokenizer.analyzeText(UIMATypeAwareAnnotationsTokenizer.java:73)
    [junit] 	at org.apache.lucene.analysis.uima.UIMATypeAwareAnnotationsTokenizer.incrementToken(UIMATypeAwareAnnotationsTokenizer.java:85)
    [junit] 	... 4 more
    [junit] Caused by: java.lang.IndexOutOfBoundsException: Index: 1, Size: 2
    [junit] 	at java.util.ArrayList.RangeCheck(ArrayList.java:547)
    [junit] 	at java.util.ArrayList.get(ArrayList.java:322)
    [junit] 	at org.apache.uima.flow.impl.FixedFlowController$FixedFlowObject.next(FixedFlowController.java:216)
    [junit] 	at org.apache.uima.analysis_engine.asb.impl.FlowContainer.next(FlowContainer.java:98)
    [junit] 	at org.apache.uima.analysis_engine.asb.impl.ASB_impl$AggregateCasIterator.processUntilNextOutputCas(ASB_impl.java:667)
    [junit] 	... 11 more

I'm debugging it and see if I can come up with the exact bug (and fix)