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Created attachment 155258 [details] IDE log Product Version: NetBeans IDE Dev (Build 201508100002) Java: 1.8.0_60-ea; Java HotSpot(TM) 64-Bit Server VM 25.60-b23 Runtime: Java(TM) SE Runtime Environment 1.8.0_60-ea-b25 System: Windows 7 version 6.1 running on amd64; Cp1250; en_US (nb) User directory: C:\Users\cendrowiczm\AppData\Roaming\NetBeans\dev Cache directory: C:\Users\cendrowiczm\AppData\Local\NetBeans\Cache\dev Exception (see attached log file) has been thrown when: 1. IDE has just been started with clear userdir 2. Java project has just been opened 3. Debugger session has been started for the opened project Debugger session has been started successfully and in parallel the exception has been emitted.
It happened again. In both cases newly opened project was MemoryView from this test specification --> http://services.netbeans.org/synergy/client/app/#/specification/288/v/2. The use case was totally the same.
This is not a NetBeans issue. It happens in a thread, which is out of control for NetBeans. It needs to be fixed in the JDK. See https://bugs.openjdk.java.net/browse/JDK-8135230
*** Bug 255727 has been marked as a duplicate of this bug. ***