[OpenJDK 2D-Dev] [9] RFR JDK-8166685: We should unpin stream and pixel buffer in case of setjmp during writeImage in JPEG.

Jayathirth D V jayathirth.d.v at oracle.com
Mon Sep 26 07:35:54 UTC 2016



Please review the following fix in JDK9 at your convenience:


Bug : https://bugs.openjdk.java.net/browse/JDK-8166685 


Webrev : http://cr.openjdk.java.net/~jdv/8166685/webrev.00/ 


Issue : As part of fix for JDK- 8162461 we removed RELEASE_ARRAYS() in writeImage() call in imageioJPEG.c for setjmp case.


Root cause : We can perform non-local jump to setjmp from longjmp during anytime in write process. If there is no RELEASE_ARRAYS() call then it might crash JVM as it was happening in JDK- 8162461.


Solution : We should have RELEASE_ARRAYS() call in setjmp case for writeImage() in imageioJPEG.c.




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