java.io.FileNotFoundException: FileObject MasterFileObject[/home/karol/HOL/MobileApplication1/src/org/javaone/hol/support/WebToMobileClient.wsclient@1d016bb:43017a,valid=false] is not valid.
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj.getOutputStream(FileObj.java:94)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj.getOutputStream(FileObj.java:89)
   at org.netbeans.modules.xml.multiview.XmlMultiViewDataObject$DataCache.saveData(XmlMultiViewDataObject.java:452)
   at org.netbeans.modules.xml.multiview.XmlMultiViewEditorSupport.saveDocument(XmlMultiViewEditorSupport.java:253)
   at org.netbeans.modules.xml.multiview.XmlMultiViewDataObject$1.save(XmlMultiViewDataObject.java:102)
   at org.netbeans.core.NbLifecycleManager.saveAll(NbLifecycleManager.java:90)
   at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:454)
   at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:154)