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The mouse cursor does not always into 'drag arrows' (horizontal or vertical) when the mouse is positioned over the frame border (such as between the editor panel and the output panel or between the editor panel and the project panel). The bug is not consistent. Sometimes it works correctly on all borders. Other times it does not work on any border. I haven't found a pattern of when the problem appears, but sometimes it appears when I return to Netbeans after running the OpenGL/GLUT program I'm working on. Product Version = NetBeans IDE Dev (Build 201011050000) Operating System = Mac OS X version 10.6.4 running on x86_64 Java; VM; Vendor = 1.6.0_22 Runtime = Java HotSpot(TM) 64-Bit Server VM 17.1-b03-307
it happens when most of netbeans heap memory is swapped out to disk. when you return to netbeans after long period of inactivity it needs some time to load some stuff from disk so the cursor doesn't react for a moment.
I don't think it is related to swapping heap memory to/from disk. The cursor problem does seem to fix itself unless I do some actions (such as modifying the viewports) - other actions, such as clicking on the editor, does not seem to help.