[OpenJDK 2D-Dev] RFR: 8144991: AIOOB Exception in AutoImageWriterTest with TIFF writer

[Brian Burkhalter]

Please review at your convenience.

Issue:  https://bugs.openjdk.java.net/browse/JDK-8144991
Patch:  http://cr.openjdk.java.net/~bpb/8144991/webrev.00/

Summary:

Call reset() in setOutput() if output != null.

Thanks,

Brian