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POAttempt to obtain DataObject for <FileObject> from EDT / Ineffective since #199391 was implemented
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  1. POAttempt to obtain DataObject for <FileObject> from EDT / Ineffective since #199391 was implemented
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    copied!<p>What does "Attempt to obtain DataObject for from EDT" means in this netbeans platform application stacktrace:</p> <pre><code>[INFO] INFO [org.netbeans.ui.metrics.projects]: USG_PROJECT_OPEN [INFO] WARNING [org.netbeans.TopSecurityManager]: use of system property netbeans.user has been obsoleted in favor of InstalledFileLocator at org.netbeans.modules.masterfs.providers.Attributes.getRootForAttributes(Attributes.java:104) [INFO] WARNING [org.openide.loaders.FolderChildren..tmp.lol.Wonderland.scenes]: Attempt to obtain DataObject for /tmp/lol/Wonderland/scenes/Alice.inc@d30e0395:b749a5 from EDT [INFO] INFO [org.openide.loaders.FolderChildren..tmp.lol.Wonderland.scenes]: Ineffective since #199391 was implemented [INFO] java.lang.Exception: Find for /tmp/lol/Wonderland/scenes/Alice.inc@d30e0395:b749a5 [INFO] at org.openide.loaders.FolderChildren$DelayedNode.convert(FolderChildren.java:451) [INFO] at org.openide.loaders.FolderChildren$DelayedNode.convert(FolderChildren.java:399) [INFO] at org.openide.util.lookup.InstanceContent$ConvertingItem.getInstance(InstanceContent.java:316) [INFO] at org.openide.util.lookup.AbstractLookup.lookup(AbstractLookup.java:421) [INFO] at org.openide.nodes.FilterNode$FilterLookup.lookup(FilterNode.java:2114) [INFO] at org.openide.nodes.FilterNode$FilterLookup.lookup(FilterNode.java:2114) [INFO] at povray.projects.PovRayProxyChildren.createNodes(PovRayProxyChildren.java:30) [INFO] at org.openide.nodes.FilterNode$Children$LazySupport$FilterNodeEntry.nodes(FilterNode.java:1895) [INFO] at org.openide.nodes.EntrySupport$Lazy$EntryInfo.getNode(EntrySupport.java:1645) [INFO] at org.openide.nodes.FilterNode$Children$LazySupport$FilterLazySnapshot.get(FilterNode.java:1741) [INFO] at org.openide.nodes.FilterNode$Children$LazySupport$FilterNodeEntry.nodes(FilterNode.java:1886) [INFO] at org.openide.nodes.EntrySupport$Lazy$EntryInfo.getNode(EntrySupport.java:1645) [INFO] at org.openide.nodes.FilterNode$Children$LazySupport$FilterLazySnapshot.get(FilterNode.java:1741) [INFO] at org.openide.nodes.FilterNode$Children$LazySupport$FilterNodeEntry.nodes(FilterNode.java:1886) [INFO] at org.openide.nodes.EntrySupport$Lazy$EntryInfo.getNode(EntrySupport.java:1645) [INFO] at org.openide.nodes.FilterNode$Children$LazySupport$FilterLazySnapshot.get(FilterNode.java:1741) [INFO] at org.openide.nodes.EntrySupport$Lazy$LazySnapshot.get(EntrySupport.java:1871) [INFO] at org.openide.nodes.EntrySupport$Lazy$LazySnapshot.get(EntrySupport.java:1858) [INFO] at org.openide.explorer.view.VisualizerChildren.getChildAt(VisualizerChildren.java:127) [INFO] at org.openide.explorer.view.VisualizerNode.getChildAt(VisualizerNode.java:321) [INFO] at javax.swing.tree.DefaultTreeModel.getChild(DefaultTreeModel.java:156) [INFO] at javax.swing.tree.FixedHeightLayoutCache$VisibleFHTreeStateNodeEnumeration.nextElement(FixedHeightLayoutCache.java:1506) [INFO] at javax.swing.tree.FixedHeightLayoutCache$VisibleFHTreeStateNodeEnumeration.nextElement(FixedHeightLayoutCache.java:1461) [INFO] at javax.swing.tree.AbstractLayoutCache.getPreferredWidth(AbstractLayoutCache.java:228) [INFO] at javax.swing.plaf.basic.BasicTreeUI.updateCachedPreferredSize(BasicTreeUI.java:1820) [INFO] at javax.swing.plaf.basic.BasicTreeUI.getPreferredSize(BasicTreeUI.java:1921) [INFO] at javax.swing.plaf.basic.BasicTreeUI.getPreferredSize(BasicTreeUI.java:1909) [INFO] at javax.swing.JComponent.getPreferredSize(JComponent.java:1634) [INFO] at javax.swing.ScrollPaneLayout.layoutContainer(ScrollPaneLayout.java:769) [INFO] at org.openide.explorer.view.TreeView$ExplorerScrollPaneLayout.layoutContainer(TreeView.java:1823) [INFO] at java.awt.Container.layout(Container.java:1421) [INFO] at java.awt.Container.doLayout(Container.java:1410) [INFO] at java.awt.Container.validateTree(Container.java:1507) [INFO] at java.awt.Container.validate(Container.java:1480) [INFO] at org.openide.explorer.view.TreeView.access$101(TreeView.java:151) [INFO] at org.openide.explorer.view.TreeView$3.run(TreeView.java:683) [INFO] at org.openide.util.Mutex.readAccess(Mutex.java:365) [INFO] at org.openide.util.Mutex$1R.run(Mutex.java:1307) [INFO] at org.openide.nodes.Children$ProjectManagerDeadlockDetector.execute(Children.java:1920) [INFO] at org.openide.util.Mutex.doWrapperAccess(Mutex.java:1326) [INFO] at org.openide.util.Mutex.readAccess(Mutex.java:354) [INFO] at org.openide.explorer.view.TreeView.validate(TreeView.java:681) [INFO] at javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:670) [INFO] at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1635) [INFO] at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) [INFO] at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:641) [INFO] at java.awt.EventQueue.access$000(EventQueue.java:84) [INFO] at java.awt.EventQueue$1.run(EventQueue.java:602) [INFO] at java.awt.EventQueue$1.run(EventQueue.java:600) [INFO] at java.security.AccessController.doPrivileged(Native Method) [INFO] at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87) [INFO] at java.awt.EventQueue.dispatchEvent(EventQueue.java:611) [INFO] at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:162) [INFO] at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) [INFO] at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) [INFO] at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) [INFO] at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) [INFO] at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) [INFO] at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) </code></pre> <p>? How to fix it? It happens when i am opening to open special project type (.pov) with my application. It doesn't hurt anything ,but floods the terminal output with same message for each of .pov-project files.</p> <p><strong>EDIT1</strong></p> <p>Aha, after some research i found that EDT means "Event Dispatcher Thread", where accessing for DataObjects for some reason is prohibited. What reason of such prohibition and how do i correctly test if node represent a hidden file on FS? How do i create seperate thread for it correctly?</p>
 

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