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https://issues.apache.org/jira/browse/UIMA-519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12516417
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Marshall Schor commented on UIMA-519:
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This does look like a simple bug: an iterater in a loop not incrementing the
iterator - so it goes on forever...
The fix suggested seems OK; it uses the plain iterator idioms.
The hard thing about fixing this is the test case that needs to be written. I
think there are no tests covering AnnotationTree at the moment.
> Infinite Loop in AnnotationIndexImpl tree()
> -------------------------------------------
>
> Key: UIMA-519
> URL: https://issues.apache.org/jira/browse/UIMA-519
> Project: UIMA
> Issue Type: Bug
> Components: Core Java Framework
> Affects Versions: 2.1
> Environment: Windows XP Professional, Java 1.6.0_01-b06, Building and
> running in Eclipse 3.3 with Java 5.0 compliance.
> Reporter: Matthew Campbell
>
> There seems to be an infinite loop within the AnnotationIndexImpl
> addChildren() method, called by the tree() method. The subiterator that is
> passed in doesn't seem to be pushed to the next value, and so it just sits
> and loops forever. I changed the loop to the code below and it seems to
> solve the problem.
> while (it.hasNext()) {
> annot = (AnnotationFS) it.next();
> dtr = new AnnotationTreeNodeImpl();
> dtr.set(annot);
> node.addChild(dtr);
> addChildren(dtr, subiterator(annot));
> }
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