java.lang.Exception: Scan canceled.
   at java.lang.Thread.getStackTrace(Thread.java:1567)
   at org.netbeans.modules.parsing.impl.indexing.LogContext.create(LogContext.java:125)
   at org.netbeans.modules.parsing.impl.indexing.LogContext.create(LogContext.java:118)
   at org.netbeans.modules.parsing.api.indexing.IndexingManager.addIndexingJob(IndexingManager.java:442)
   at org.netbeans.modules.parsing.api.indexing.IndexingManager.refreshIndex(IndexingManager.java:181)
   at org.netbeans.modules.parsing.api.indexing.IndexingManager.refreshIndex(IndexingManager.java:141)
   at org.netbeans.modules.java.source.indexing.APTUtils$1.run(APTUtils.java:124)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2044)