[jira] Work started: (UIMA-464) ClassCastException thrown when using subiterator and moveTo()

["Thilo Goetz (JIRA)" <ui...@incubator.apache.org>]

     [ https://issues.apache.org/jira/browse/UIMA-464?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on UIMA-464 started by Thilo Goetz.

> ClassCastException thrown when using subiterator and moveTo()
> -------------------------------------------------------------
>
>                 Key: UIMA-464
>                 URL: https://issues.apache.org/jira/browse/UIMA-464
>             Project: UIMA
>          Issue Type: Bug
>          Components: Core Java Framework
>    Affects Versions: 2.1
>         Environment: N/A
>            Reporter: Philip Ogren
>            Assignee: Thilo Goetz
>             Fix For: 2.2
>
>         Attachments: UIMA-464.zip
>
>
> I am having difficulty with using the FSIterator returned by the AnnotationIndex.subiterator(AnnotationFS) method.
> The following is a code fragment:
> AnnotationIndex annotationIndex = jCas.getAnnotationIndex(tokenType);
> FSIterator tokenIterator = annotationIndex.subiterator(sentenceAnnotation);
> tokenIterator.moveTo(tokenAnnotation);
> Here is the relevant portion of the stack trace:
>     java.lang.ClassCastException: edu.colorado.cslr.dessert.types.Token
>     at java.util.Collections.indexedBinarySearch(Unknown Source)
>     at java.util.Collections.binarySearch(Unknown Source)
>     at org.apache.uima.cas.impl.Subiterator.moveTo(Subiterator.java:224)
> If I change the second line to the following, then I do not have any problems with an exception being thrown.
> FSIterator tokenIterator = annotationIndex.iterator();

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