RegExFilter does not properly regex when using multi-byte characters
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Key: ACCUMULO-209
URL: https://issues.apache.org/jira/browse/ACCUMULO-209
Project: Accumulo
Issue Type: Bug
Components: client
Affects Versions: 1.3.5
Reporter: Jim Klucar
Assignee: Billie Rinaldi
The current RegExFilter class uses a ByteArrayBackedCharSequence to set the
data to match against. The ByteArrayBackedCharSequence contains a line of code
that prevents the matcher from properly matching multi-byte characters.
Line 49 of ByteArrayBackedCharSequence.java is:
return (char) (0xff & data[offset + index]);
This incorrectly casts a single byte from the byte array to a char, which is 2
bytes in Java. This prevents the RegExFilter from properly performing Regular
Expressions on multi-byte character encoded values.
A patch for the RegExFilter.java file has been created and will be submitted.
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