[ http://issues.apache.org/jira/browse/DERBY-1401?page=all ]
Tomohito Nakayama resolved DERBY-1401.
--------------------------------------
Resolution: Fixed
> TestDataReader class in jdbcapi/Stream.java creates test data of which length
> is not equals to value passed as length of test data.
> -----------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-1401
> URL: http://issues.apache.org/jira/browse/DERBY-1401
> Project: Derby
> Issue Type: Bug
> Components: Test
> Reporter: Tomohito Nakayama
> Assigned To: Tomohito Nakayama
> Attachments: DERBY-1401.patch
>
>
> In the work of DERBY-1301, I found this issue.
> Seeing the code, next part in
> org.apache.derbyTesting.functionTests.tests.jdbcapi.Stream.TestDataReader had
> problem.
> public int read( char[] cbuf,
> int off,
> int len ){
>
> if(wroteLength >= total)
> return -1;
>
> int i;
> for(i = off ;
> i < off + len &&
> wroteLength <= total ;
> i++, wroteLength ++){
>
> cbuf[i] = (char) (wroteLength % 0x10000L);
>
> }
> return i - off;
> }
> Problem exists in next part...
> wroteLength <= total
> Because an evaluation of this expression is true when wroteLength equals
> total,
> test data is created beyond max length passed in total.
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