org.openide.filesystems.FileStateInvalidException: MasterFileObject[/Users/petrjiricka/NetBeansProjects/mavenproject176/src/main/java/com/mycompany/mavenproject176/Worker.java@785dd85d:630e1bf7,valid=false]
Caused: org.openide.loaders.DataObjectNotFoundException: MasterFileObject[/Users/petrjiricka/NetBeansProjects/mavenproject176/src/main/java/com/mycompany/mavenproject176/Worker.java@785dd85d:630e1bf7,valid=false]
   at org.openide.loaders.DataObject.find(DataObject.java:519)
   at org.netbeans.modules.gsf.codecoverage.CoverageReportTopComponent$FileRenderer.getTableCellRendererComponent(CoverageReportTopComponent.java:530)
   at javax.swing.JTable.prepareRenderer(JTable.java:5720)
   at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:2072)
   at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:1974)
   at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:1770)
   at javax.swing.plaf.ComponentUI.update(ComponentUI.java:153)
   at javax.swing.JComponent.paintComponent(JComponent.java:752)
   at javax.swing.JComponent.paint(JComponent.java:1029)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JViewport.paint(JViewport.java:747)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at org.netbeans.swing.tabcontrol.TabbedContainer.paint(TabbedContainer.java:959)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at org.netbeans.core.windows.view.ui.MultiSplitPane.paint(MultiSplitPane.java:328)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at org.netbeans.core.windows.view.ui.MultiSplitPane.paint(MultiSplitPane.java:328)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JLayeredPane.paint(JLayeredPane.java:567)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at org.netbeans.core.windows.view.ui.MainWindow$1.paint(MainWindow.java:153)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JLayeredPane.paint(JLayeredPane.java:567)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:34)
   at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:60)
   at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:97)
   at java.awt.Container.paint(Container.java:1793)
   at java.awt.Window.paint(Window.java:3375)
   at sun.awt.RepaintArea.paintComponent(RepaintArea.java:276)
   at sun.awt.RepaintArea.paint(RepaintArea.java:241)
   at apple.awt.ComponentModel.handleEvent(ComponentModel.java:263)
   at apple.awt.CWindow.handleEvent(CWindow.java:517)
   at java.awt.Component.dispatchEventImpl(Component.java:4790)
   at java.awt.Container.dispatchEventImpl(Container.java:2143)
   at java.awt.Window.dispatchEventImpl(Window.java:2478)
   at java.awt.Component.dispatchEvent(Component.java:4544)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:635)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:148)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)