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From "Yun Lee (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-4732) Release system resources in CanonTestCase thoroughly
Date Tue, 06 Jul 2010 13:31:50 GMT
Release system resources in CanonTestCase thoroughly
----------------------------------------------------

                 Key: DERBY-4732
                 URL: https://issues.apache.org/jira/browse/DERBY-4732
             Project: Derby
          Issue Type: Improvement
          Components: Test
            Reporter: Yun Lee
            Priority: Minor


Now, in the method of compareCanon(String canon) in CanonTestcase, two BufferedReaders----cannonReader
and testOutput are closed in try catch block, however if some exception occurs above, the
two BufferReaders won't be closed, and related system resources won't be released. 

Besides, a releative problem is about the ByteArrayOutputStream rawBytes in CanonTestcase,
it's created in getOutputStream() and closed in compareCanon(String canon). It's pointed out
by Knut in Derby-2708, ByteArrayOutputStream's javadoc says that closing it has no effect,
so tearDown() method has been added  to CanonTestCase and sets rawBytes to null. It certainly
can work. However, is it also OK to null out rawBytes in compareCanon(String canon)? If so,
it seems cleaner than to null it out in tearDown() method.


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