java.lang.NullPointerException
        at org.netbeans.modules.javahints.StaticImport.guessCandidates(StaticImport.java:435)
        at org.netbeans.modules.javahints.StaticImport.run(StaticImport.java:120)
        at org.netbeans.modules.java.hints.infrastructure.SuggestionsTask.run(SuggestionsTask.java:122)
        at org.netbeans.modules.java.hints.infrastructure.SuggestionsTask.run(SuggestionsTask.java:65)
        at org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:288)
        at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:661)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)