[exec] WARNING: externally created folder: /home.local/rmatous/NetBeansProjects/JavaApplication150/build  - please report. (For additional information see: http://wiki.netbeans.org/wiki/view/FileSystems)
     [exec]     at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.printWarning(FileObjectFactory.java:172)
     [exec]     at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.checkCacheState(FileObjectFactory.java:153)
     [exec]     at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.checkCacheState(FileObjectFactory.java:143)
     [exec]     at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.issueIfExist(FileObjectFactory.java:214)
     [exec]     at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.findFileObject(FileObjectFactory.java:139)
     [exec]     at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.findFileObject(FileObjectFactory.java:116)
     [exec]     at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.findFileObject(FileObjectFactory.java:111)
     [exec]     at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.getParent(BaseFileObj.java:376)
     [exec]     at org.netbeans.modules.projectapi.SimpleFileOwnerQueryImplementation.getOwner(SimpleFileOwnerQueryImplementation.java:161)
     [exec]     at org.netbeans.modules.projectapi.SimpleFileOwnerQueryImplementation.getOwner(SimpleFileOwnerQueryImplementation.java:87)
     [exec]     at org.netbeans.api.project.FileOwnerQuery.getOwner(FileOwnerQuery.java:147)
     [exec]     at org.netbeans.modules.java.project.ProjectSourceForBinaryQuery.findSourceRoots(ProjectSourceForBinaryQuery.java:61)
     [exec]     at org.netbeans.api.java.queries.SourceForBinaryQuery.findSourceRoots(SourceForBinaryQuery.java:89)
     [exec]     at org.netbeans.api.java.classpath.GlobalPathRegistry.getSourceRoots(GlobalPathRegistry.java:326)
     [exec]     at org.netbeans.modules.debugger.jpda.projects.SourcePathProviderImpl.<init>(SourcePathProviderImpl.java:140)
     [exec]     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     [exec]     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     [exec]     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     [exec]     at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf.createInstance(Lookup.java:368)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf.access$1300(Lookup.java:215)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf$MetaInfLookupList.fillInstances(Lookup.java:608)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf$MetaInfLookupList.<init>(Lookup.java:594)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf$MetaInfLookupList.<init>(Lookup.java:589)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf$MetaInfLookupList.<init>(Lookup.java:583)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf.lookup(Lookup.java:249)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound$CompoundLookupList.setUp(Lookup.java:173)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound$CompoundLookupList.<init>(Lookup.java:167)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound.lookup(Lookup.java:141)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound$CompoundLookupList.setUp(Lookup.java:173)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound$CompoundLookupList.<init>(Lookup.java:167)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound.lookup(Lookup.java:141)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound$CompoundLookupList.setUp(Lookup.java:173)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound$CompoundLookupList.<init>(Lookup.java:167)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound.lookup(Lookup.java:141)
     [exec]     at org.netbeans.modules.debugger.jpda.SourcePath.getContext(SourcePath.java:82)
     [exec]     at org.netbeans.modules.debugger.jpda.SourcePath.addPropertyChangeListener(SourcePath.java:226)
     [exec]     at org.netbeans.modules.debugger.jpda.actions.StepIntoActionProvider.<init>(StepIntoActionProvider.java:104)
     [exec]     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     [exec]     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     [exec]     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     [exec]     at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf.createInstance(Lookup.java:368)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf.access$1300(Lookup.java:215)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf$MetaInfLookupList.fillInstances(Lookup.java:608)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf$MetaInfLookupList.<init>(Lookup.java:594)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf$MetaInfLookupList.<init>(Lookup.java:589)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf$MetaInfLookupList.<init>(Lookup.java:583)
     [exec]     at org.netbeans.api.debugger.Lookup$MetaInf.lookup(Lookup.java:249)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound$CompoundLookupList.setUp(Lookup.java:173)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound$CompoundLookupList.<init>(Lookup.java:167)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound.lookup(Lookup.java:141)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound$CompoundLookupList.setUp(Lookup.java:173)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound$CompoundLookupList.<init>(Lookup.java:167)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound.lookup(Lookup.java:141)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound$CompoundLookupList.setUp(Lookup.java:173)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound$CompoundLookupList.<init>(Lookup.java:167)
     [exec]     at org.netbeans.api.debugger.Lookup$Compound.lookup(Lookup.java:141)
     [exec]     at org.netbeans.api.debugger.ActionsManager.initActionImpls(ActionsManager.java:421)
     [exec]     at org.netbeans.api.debugger.ActionsManager.postAction(ActionsManager.java:190)
     [exec]     at org.netbeans.api.debugger.DebuggerManager.startDebugging(DebuggerManager.java:365)
     [exec]     at org.netbeans.api.debugger.jpda.JPDADebugger.startListening(JPDADebugger.java:209)
     [exec]     at org.netbeans.modules.debugger.jpda.ant.JPDAStart$1.run(JPDAStart.java:321)
     [exec]     at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:561)
     [exec]     at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:986)
     [exec] java.lang.Exception: /home.local/rmatous/NetBeansProjects/JavaApplication150/build
     [exec]     at org.netbeans.TopSecurityManager.prepareForWarning(TopSecurityManager.java:297)
     [exec]     at org.netbeans.TopSecurityManager.checkWrite(TopSecurityManager.java:327)
     [exec]     at java.io.File.mkdir(File.java:1119)
     [exec]     at java.io.File.mkdirs(File.java:1148)
     [exec]     at java.io.File.mkdirs(File.java:1158)
     [exec]     at org.apache.tools.ant.taskdefs.Mkdir.mkdirs(Mkdir.java:87)
     [exec]     at org.apache.tools.ant.taskdefs.Mkdir.execute(Mkdir.java:60)
     [exec]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
     [exec]     at sun.reflect.GeneratedMethodAccessor74.invoke(Unknown Source)
     [exec]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     [exec]     at java.lang.reflect.Method.invoke(Method.java:585)
     [exec]     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
     [exec]     at org.apache.tools.ant.Task.perform(Task.java:348)
     [exec]     at org.apache.tools.ant.Target.execute(Target.java:357)
     [exec]     at org.apache.tools.ant.Target.performTasks(Target.java:385)
     [exec]     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
     [exec]     at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
     [exec]     at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
     [exec]     at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
     [exec]     at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:277)
     [exec]     at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:460)
     [exec]     at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:151)