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Created attachment 162953 [details] Thread dump 1 (IG) Create Project with existing sources, example in bug https://netbeans.org/bugzilla/show_bug.cgi?id=269010 Clean ---- Clean hangs.
Created attachment 162954 [details] Thread dump 2 (AS)
Same thread state in both dumps: "NATIVEEXECUTOR: Waiting for localhost /cygdrive/C/cygwin64/bin/bash.exe "-c" "/cygdrive/C/cygwin64/bin/make.exe -f Makefile clean"" #60 daemon prio=1 os_prio=-2 tid=0x000000001ee91000 nid=0x1e8 runnable [0x000000002b6cf000] java.lang.Thread.State: RUNNABLE at java.lang.ProcessImpl.waitForInterruptibly(Native Method) at java.lang.ProcessImpl.waitFor(ProcessImpl.java:449) at org.netbeans.modules.nativeexecution.LocalNativeProcess.waitResult(LocalNativeProcess.java:233) at org.netbeans.modules.nativeexecution.AbstractNativeProcess$1.call(AbstractNativeProcess.java:165) at org.netbeans.modules.nativeexecution.AbstractNativeProcess$1.call(AbstractNativeProcess.java:157) at org.netbeans.modules.nativeexecution.support.NativeTaskExecutorService$1.call(NativeTaskExecutorService.java:67) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443) at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68) at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)
Increasing priority
There is an issue with a makefile, ".SHELLFLAGS=/C" line should be added to the beginning of the Makefile