[OpenJDK 2D-Dev] Crash in CGraphicsDevice.m
Bill.York at mathworks.com
Wed Oct 10 15:45:09 UTC 2018
I work on a product called MATLAB and we have about 60 reports from customers on Mac related to a crash in CGraphicsDevice.m
Please let me know if this is the right way to report a crash and discuss getting it resolved.
Here are the details:
CGraphicsDevice.m is a native file in support of Java drawing and gets called from Java_sun_awt_CGraphicsDevice_nativeGetDisplayMode
While I can’t reproduce the problem, it looks like the display pointer is becoming invalid for a time when the user’s laptop opens or closes.
Looking at this source code:
I see a direct call to CFStringCompare without a check for a NULL CFStringRef.
* (CFStringCompare(mode, CFSTR(kIO30BitDirectPixels), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
I believe if this code returned 0, the crash would not occur though there may be some other cleanup in the surrounding call frames.
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