[OpenJDK 2D-Dev] [11] RFR for JDK-8201433: Fix potential crash in BufImg_SetupICM

[Alexey Ivanov]

Hi,

Please review the fix for jdk11:

bug: https://bugs.openjdk.java.net/browse/JDK-8201433
webrev: http://cr.openjdk.java.net/~aivanov/8201433/jdk11/webrev.00/


When the JVM is run with limited amount of memory, initCubemap function 
called from BufImg_SetupICM can return NULL. It can lead to a crash. It 
usually happens when native memory is exhausted and malloc fails. In 
this state, JVM itself is not stable.

Adding NULL-check can prevent the crash in this particular place. 
However, if the app continues, since native memory is exhausted and 
malloc fails, JVM can still crash in another place.


Thank you in advance.

Regards,
Alexey