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Product Version = NetBeans IDE 8.1 (Build 201510222201) Operating System = Windows 10 version 10.0 running on Intel Java; VM; Vendor = 1.8.0_65 Runtime = Java HotSpot(TM) 64-Bit Server VM 25.65-b01 Reproducibility: Happens every time Right Click on File Download, Upload and Synchronize is greyed out. Works fine on NetBeans 8.0
Created attachment 157785 [details] IDE log
Very likely a duplicate of issue #256585. Read it for possible workarounds. Thanks for reporting. *** This bug has been marked as a duplicate of bug 256585 ***