[OpenJDK 2D-Dev] RFR 8148454: [PIT] Failure of ReplaceMetadataTest on TIFF with IllegalStateException

[Brian Burkhalter]

Please review at your convenience.

Issue:	https://bugs.openjdk.java.net/browse/JDK-8148454
Patch:	http://cr.openjdk.java.net/~bpb/8148454/webrev.00/

Problem was that the superclass ‘output’ variable was being incorrectly reset to null. The TIFF writer mostly uses its internal ‘stream’ variable for the ImageOutputStream but the test exposed a case which referred to the superclass ‘output’ variable. The @ignore tag has been removed from the mentioned test.

Thanks,

Brian