[classlib][sql] SerialBlob.truncate(long length) should not change buffer length is the length parameter is invalid.
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                 Key: HARMONY-2937
                 URL: http://issues.apache.org/jira/browse/HARMONY-2937
             Project: Harmony
          Issue Type: Bug
          Components: Non-bug differences from RI
            Reporter: Andrew Zhang


Hi, as discussed in dev mailing list, SerialBlob.truncate(long length) should not change buffer length is the length parameter is invalid. Following test shows the case:
public void testTruncateJ() throws Exception {
        byte[] buf = { 1, 2, 3, 4, 5, 6, 7, 8 };
        SerialBlob serialBlob1 = new SerialBlob(buf);
        try {
            serialBlob1.truncate(-1);
        } catch (SerialException e) {
            System.out.println(e.getMessage());
        }
        System.out.println(serialBlob1.length());
}
RI output is as follow:
Invalid arguments: position cannot be less that 1
-1
The buffer length is changed to -1 while SerialException is thrown too.  Keeping the length as the old value makes more sense. Harmony won't follow RI's behaviour for this case, and keep it as a non-different-bug from RI. 

Best regards,
Andrew

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