Asher Stern created UIMA-5067:
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Summary: JCasUtil.selectSingleRelative returns wrong object
Key: UIMA-5067
URL: https://issues.apache.org/jira/browse/UIMA-5067
Project: UIMA
Issue Type: Bug
Components: uimaFIT
Affects Versions: 2.2.0uimaFIT
Reporter: Asher Stern
The returned object of JCasUtil.selectSingleRelative() should match the
generic-type of its first argument.
However, when the last argument is 0, it returns an object whose class is
identical to the second argument's class.
for (Annotation aa : cas.getAnnotationIndex(AA.type))
{
Object ab = JCasUtil.selectSingleRelative(AB.class, aa, 0);
System.out.println(ab.getClass().getName());
}
The output ought to be "AB", however it is "AA".
(When the last argument is 0, I thought it would find an annotation which
begins exactly where the annotation of the second argument begins. However, it
returns a wrong object).
Perhaps, if last-argument 0 is prohibited, an exception should be thrown (and
documented).
Thanks.
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