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For the last month or two I often experience that when scrolling fast down or up in a document (both java and xml), the viewport jump back to the carret. No exceptions are thrown in messages.log Product Version: NetBeans IDE 8.2 (Build 201609300101) Updates: NetBeans IDE is updated to version NetBeans 8.2 Patch 1 Java: 1.8.0_121; Java HotSpot(TM) 64-Bit Server VM 25.121-b13 Runtime: Java(TM) SE Runtime Environment 1.8.0_121-b13 System: Windows 10 version 10.0 running on amd64; Cp1252; en_US (nb)
I have discovered the same issue with NetBeans 8.2 on Windows 7 x64, also no Exceptions.
*** This bug has been marked as a duplicate of bug 269451 ***