[UIMA-3075] Unambiguous non-strict subiterator may return annotations outside the given annotation's range

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 2.4.0SDK
• Assignee: Richard Eckart de Castilho
• Reporter: Alexander N Thomas
• Created: 12/Jul/13 21:50
• Updated: 18/Jul/13 00:12
• Resolved: 18/Jul/13 00:12

Description

REPRO: using a tokenizer that matches on "[^ ]" on "aaa bbb ccc ddd" I get four token annotations

"aaa" 0-3
"bbb" 4-7
"ccc" 8-11
"ddd" 12-15

I then iterate over the token annotations while printing the covered text, begin and end, make an unambiguous non-strict subiterator, and iterate over the subiterations printing out their covered text, begin and end all indented.

Iterator<Annotation> iter = jcas.getAnnotationIndex(Token.type).iterator();
while (iter.hasNext()) {
Annotation a = iter.next();
System.out.println("\"" + a.getCoveredText() + "\"" + " [" + a.getBegin() + ", " + a.getEnd() + ")");
Iterator<Annotation> featIter = jcas.getAnnotationIndex().subiterator(a, false, false);
while (featIter.hasNext())

{ Annotation b = featIter.next(); System.out.println("\t\"" + b.getCoveredText() + "\"" + " [" + b.getBegin() + ", " + b.getEnd() + ")"); }

}

The output is
"aaa" [0, 3)
"bbb" [4, 7)
"bbb" [4, 7)
"ccc" [8, 11)
"ccc" [8, 11)
"ddd" [12, 15)
"ddd" [12, 15)

I think this can be fixed by adding an extra check at Subiterator.java ln: 127
NOW
while (it.isValid() && ((start > annot.getBegin()) || (strict && annot.getEnd() > end)))

{ it.moveToNext(); }
POSSIBLE FIX
while (it.isValid() && ((start > annot.getBegin() && annot.getBegin() <= end) || (strict && annot.getEnd() > end))) { it.moveToNext(); }

Issue Links

• is duplicated by: UIMA-2808 JCasUtil Subiterator returns annotations which are not within borders of the container (parent) annotation if parameter "strict" is set to "false"