See CR 6960505
Fixed in http://hg.netbeans.org/cnd-main?cmd=changeset;node=2803d4870783
The fix is highly needed for DLight in upcoming OSS release.
I don't know I can to verify this fix or not. But Oracle Solaris Studio from CR6960505 works correctly.
Please verify bugfix for this bug, so it can be integrated into release691 repository.
I replaced org-netbeans-modules-dlight-perfan.jar file in Oracle Solaris Studio build 27.0 on *.jar file with fix. Race Detection tool works correctly.
main #2803d4870783 transplanted to release691 #5909bfbd9557
verified in OSS based on NetBeans 6.9.1