[UIMA-1499] Potential ClassCastException in CasPool

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3
• Fix Version/s: 2.3
• Component/s: Core Java Framework
• Assignee: Marshall Schor
• Reporter: Jörn Kottmann
• Created: 18/Aug/09 07:51
• Updated: 12/Sep/09 23:32
• Resolved: 12/Sep/09 23:32

Description

The CasPool has a constructor

CasPool(int aNumInstances, Collection aComponentDescriptionsOrMetaData,
Properties aPerformanceTuningSettings, ResourceManager
aResourceManager)

where aComponentDescriptionsOrMetaData is a collection which can contain
according
to javadoc "AnalysisEngineDescription, CollectionReaderDescription,
CasConsumerDescription or ProcessingResourceMetaData objects"

A reference of the Collection is passed to fillPool which passes the
Collection
to a CasDefinition constructor which then casts everything to
ProcessingResourceMetaData,
which will result in a ClassCastException in the case of
AnalysisEngineDescription,
CollectionReaderDescription and CasConsumerDescription objects.