java.util.ConcurrentModificationException
        at java.util.IdentityHashMap$IdentityHashMapIterator.nextIndex(IdentityHashMap.java:715)
        at java.util.IdentityHashMap$KeyIterator.next(IdentityHashMap.java:804)
        at org.netbeans.modules.timers.InstanceWatcher.contains(InstanceWatcher.java:78)
        at org.netbeans.modules.timers.InstanceWatcher.add(InstanceWatcher.java:72)
        at org.netbeans.modules.timers.TimesCollectorPeer$ObjectCountDescripton.add(TimesCollectorPeer.java:214)
        at org.netbeans.modules.timers.TimesCollectorPeer$ObjectCountDescripton.access$000(TimesCollectorPeer.java:189)
        at org.netbeans.modules.timers.TimesCollectorPeer.reportReference(TimesCollectorPeer.java:104)
        at org.netbeans.modules.timers.Install$TimerHandler.publish(Install.java:114)
        at java.util.logging.Logger.log(Logger.java:472)
        at org.netbeans.modules.css.gsf.CSSGSFParser.parseFiles(CSSGSFParser.java:127)
        at org.netbeans.napi.gsfret.source.Source.moveToPhase(Source.java:1004)
        at org.netbeans.napi.gsfret.source.Source$CompilationJob.run(Source.java:1389)
        at java.util.concurrent.Executors$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)
An error occurred during parsing of 'C:\xampp\htdocs\MyAjaxApp\Pokusy\EmptyPHP.php'. Please report a bug against PHP and attach dump file 'C:\Documents and Settings\pavel\.netbeans\dev\var\log\EmptyPHP.php.dump'.