Red Hat Bugzilla – Bug 1305936
ClassCastException on Java2D while connecting an external display
Last modified: 2017-10-13 13:36:37 EDT
Runs with a java application (in my case Scilab) and connect an external display (in my case HDMI on Intel free driver).
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: sun.awt.image.BufImgSurfaceData cannot be cast to sun.java2d.xr.XRSurfaceData
Work seems to be underway to fix this upstream, but is currently targeted to only be fixed in OpenJDK 9.
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According to https://bugs.openjdk.java.net/browse/JDK-7172749, we should be picking the fix for this up when we update to 8u112.
This bug appears to have been reported against 'rawhide' during the Fedora 26 development cycle.
Changing version to '26'.
I believe this should have been fixed in the RPMs back in January 2017. Please re-open if this is not the case.