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Steps to reproduce (with *fresh* build): 1) Create new standalone module project with Wizard 2) Call either "Clean and Build", or "Build" Restart doesn't help. It begins work when you call "ant netbeans" from command line. (maybe "clean" before it) NPE is thrown into OW (attached). Project is probably correct since calling "ant clean netbeans" from command line works (and solve the problem as noted above)
Created attachment 22390 [details] 59426_NPE.txt
Cannot reproduce in JDK 1.6 (problem with earlier JDKs only?) but can guess what is wrong. ModuleTracking should not be used for external modules at all.
Please verify: committed Up-To-Date 1.8 nbbuild/antsrc/org/netbeans/nbbuild/ModuleTracking.java
Seems ok --> v