org.openide.filesystems.FileAlreadyLockedException: E:/work/testprojects/JavaApplication11/nbproject/project.xml at org.netbeans.modules.masterfs.Delegate.lock(Delegate.java:169) at org.netbeans.modules.masterfs.MasterFileObject.lock(MasterFileObject.java:155) at org.netbeans.spi.project.support.ant.AntProjectHelper$2.run(AntProjectHelper.java:282) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:96) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:450) at org.netbeans.spi.project.support.ant.AntProjectHelper.saveXml(AntProjectHelper.java:274) at org.netbeans.spi.project.support.ant.AntProjectHelper.save(AntProjectHelper.java:529) at org.netbeans.spi.project.support.ant.AntProjectHelper.access$100(AntProjectHelper.java:63) at org.netbeans.spi.project.support.ant.AntProjectHelper$1.save(AntProjectHelper.java:101) at org.netbeans.modules.project.ant.AntBasedProjectFactorySingleton.saveProject(AntBasedProjectFactorySingleton.java:195) at org.netbeans.api.project.ProjectManager$6.run(ProjectManager.java:540) at org.openide.util.Mutex.writeAccess(Mutex.java:354) at org.netbeans.api.project.ProjectManager.saveProject(ProjectManager.java:533) at org.netbeans.modules.java.j2seproject.ui.customizer.J2SEProjectProperties.save(J2SEProjectProperties.java:318) at org.netbeans.modules.java.j2seproject.ui.customizer.CustomizerProviderImpl$OptionListener.actionPerformed(CustomizerProviderImpl.java:280) at org.netbeans.modules.project.uiapi.CustomizerDialog$OptionListener.actionPerformed(CustomizerDialog.java:156) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3126) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110) ---------- java.lang.IllegalStateException: Cannot generate build scripts from a modified project at org.netbeans.spi.project.support.ant.GeneratedFilesHelper$2.run(GeneratedFilesHelper.java:421) at org.openide.util.Mutex.readAccess(Mutex.java:266) at org.netbeans.spi.project.support.ant.GeneratedFilesHelper.getBuildScriptState(GeneratedFilesHelper.java:418) at org.netbeans.modules.java.j2seproject.ui.customizer.J2SEProjectProperties$1.run(J2SEProjectProperties.java:298) at org.openide.util.Mutex.writeAccess(Mutex.java:354) at org.netbeans.modules.java.j2seproject.ui.customizer.J2SEProjectProperties.save(J2SEProjectProperties.java:296) at org.netbeans.modules.java.j2seproject.ui.customizer.CustomizerProviderImpl$OptionListener.actionPerformed(CustomizerProviderImpl.java:280) at org.netbeans.modules.project.uiapi.CustomizerDialog$OptionListener.actionPerformed(CustomizerDialog.java:156) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3126) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110) ---------- org.openide.filesystems.FileAlreadyLockedException: E:/work/testprojects/JavaApplication11/build.xml at org.netbeans.modules.masterfs.Delegate.lock(Delegate.java:169) at org.netbeans.modules.masterfs.MasterFileObject.lock(MasterFileObject.java:155) at org.netbeans.spi.project.support.ant.GeneratedFilesHelper$1$1$1.run(GeneratedFilesHelper.java:294) at org.netbeans.spi.project.support.ant.GeneratedFilesHelper$1$1.run(GeneratedFilesHelper.java:319) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:96) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:450) at org.netbeans.spi.project.support.ant.GeneratedFilesHelper$1.run(GeneratedFilesHelper.java:222) at org.openide.util.Mutex.writeAccess(Mutex.java:354) at org.netbeans.spi.project.support.ant.GeneratedFilesHelper.generateBuildScriptFromStylesheet(GeneratedFilesHelper.java:215) at org.netbeans.spi.project.support.ant.GeneratedFilesHelper$3.run(GeneratedFilesHelper.java:641) at org.openide.util.Mutex.writeAccess(Mutex.java:354) at org.netbeans.spi.project.support.ant.GeneratedFilesHelper.refreshBuildScript(GeneratedFilesHelper.java:637) at org.netbeans.modules.java.j2seproject.J2SEProject$ProjectXmlSavedHookImpl.projectXmlSaved(J2SEProject.java:309) at org.netbeans.spi.project.support.ant.AntProjectHelper.save(AntProjectHelper.java:542) at org.netbeans.spi.project.support.ant.AntProjectHelper.access$100(AntProjectHelper.java:63) at org.netbeans.spi.project.support.ant.AntProjectHelper$1.save(AntProjectHelper.java:101) at org.netbeans.modules.project.ant.AntBasedProjectFactorySingleton.saveProject(AntBasedProjectFactorySingleton.java:195) at org.netbeans.api.project.ProjectManager$6.run(ProjectManager.java:540) at org.openide.util.Mutex.writeAccess(Mutex.java:354) at org.netbeans.api.project.ProjectManager.saveProject(ProjectManager.java:533) at org.netbeans.modules.java.j2seproject.ui.customizer.J2SEProjectProperties.save(J2SEProjectProperties.java:318) at org.netbeans.modules.java.j2seproject.ui.customizer.CustomizerProviderImpl$OptionListener.actionPerformed(CustomizerProviderImpl.java:280) at org.netbeans.modules.project.uiapi.CustomizerDialog$OptionListener.actionPerformed(CustomizerDialog.java:156) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3126) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)