apache
java.lang.NullPointerException when trying to open remote file (could not open it)
Apache NetBeans version
Apache NetBeans 27
What happened
I was trying to open a file in a remote host to see it locally and the exception occurs. The problem is systematic. I am using Netbeans 27 in Windows 11. Tried both JDK19 and JDK 24 and the porblem happens with both Does not happen with Netbeans 17 in Windows 11. Tried with JDK 19.
Language / Project Type / NetBeans Component
No response
How to reproduce
I click the button "open remote file", the file manager opens normally pointing to the remote filesytem, i select the desired file and when I click Ok to open it, the exception occurs.
Did this work correctly in an earlier version?
Apache NetBeans 24 or earlier
Operating System
Windows 11 version 10.0 running on amd64
JDK
24.0.2; Java HotSpot(TM) 64-Bit Server VM 24.0.2+12-54
Apache NetBeans packaging
Apache NetBeans binary zip
Anything else
Problem is systematic.
Exception log:
java.lang.NullPointerException: Cannot invoke "org.netbeans.modules.remote.impl.fileoperations.spi.FileOperationsProvider.getFileOperations(org.openide.filesystems.FileSystem)" because the return value of "org.netbeans.modules.remote.impl.fileoperations.spi.FileOperationsProvider.getDefault()" is null
at org.netbeans.modules.remote.impl.fs.RemoteFileSystem$RootFileObject.getAttribute(RemoteFileSystem.java:1295)
at org.netbeans.modules.remote.impl.fs.RemoteFileObject.getAttribute(RemoteFileObject.java:450)
at org.netbeans.modules.versioning.core.api.VCSFileProxy.getAttribute(VCSFileProxy.java:492)
at org.netbeans.modules.versioning.core.api.VCSFileProxy.getFileProxyOperations(VCSFileProxy.java:478)
at org.netbeans.modules.versioning.core.api.VCSFileProxy.createFileProxy(VCSFileProxy.java:159)
at org.netbeans.modules.localhistory.LocalHistory$OpenedFilesListener.getFiles(LocalHistory.java:548)
at org.netbeans.modules.localhistory.LocalHistory$OpenedFilesListener.access$900(LocalHistory.java:431)
at org.netbeans.modules.localhistory.LocalHistory$OpenedFilesListener$1$1.propertyChange(LocalHistory.java:642)
at java.desktop/java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:343)
at java.desktop/java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:335)
at java.desktop/java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:268)
at org.openide.text.CloneableEditorSupport.firePropertyChange(CloneableEditorSupport.java:456)
at org.openide.text.CloneableEditor.componentClosed(CloneableEditor.java:306)
at org.netbeans.core.spi.multiview.text.MultiViewCloneableEditor.componentClosed(MultiViewCloneableEditor.java:95)
at org.netbeans.core.spi.multiview.text.MultiViewEditorElement.componentClosed(MultiViewEditorElement.java:106)
at org.netbeans.core.multiview.MultiViewPeer.peerComponentClosed(MultiViewPeer.java:304)
at org.netbeans.core.multiview.MultiViewCloneableTopComponent.componentClosed(MultiViewCloneableTopComponent.java:104)
[catch] at org.openide.windows.WindowManager.componentCloseNotify(WindowManager.java:297)
at org.netbeans.core.windows.WindowManagerImpl.notifyTopComponentClosed(WindowManagerImpl.java:1181)
at org.netbeans.core.windows.Central.removeModeTopComponent(Central.java:998)
at org.netbeans.core.windows.ModeImpl.removeTopComponent(ModeImpl.java:454)
at org.netbeans.core.windows.ModeImpl.close(ModeImpl.java:262)
at org.netbeans.core.windows.WindowManagerImpl.topComponentClose(WindowManagerImpl.java:1354)
at org.openide.windows.TopComponent.close(TopComponent.java:539)
at org.openide.windows.TopComponent.close(TopComponent.java:526)
at org.openide.text.CloneableEditorInitializer$2.run(CloneableEditorInitializer.java:277)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:773)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:136)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
Are you willing to submit a pull request?
No
@anshulsharma0424, I have installed it and I can confirm it does not work with Netbeans 24 either, it produces the same error log.
Why have you pointed me to that specific version to begin with?
Now the updated status becomes:
Netbeans 17 - Working Netbeans 24 - Not Working Netbeans 27 - Not Working
Additional information: RemoteFileSystem comes from hudson integration. Detailed steps to reproduce are missing. With the provided info you have to guess click ways, setup setups and general use.
To actually reproduce some public accessible system to is required, combined with information how to setup a test system, that shows the problematic behavior.
I suspect you somehow still have the C++ (dlight) modules installed because that's what the stacktrace looks like:
https://github.com/emilianbold/netbeans-releases/blob/2fd6dc84c187e3c79a959b3ddb4da1a9703659c7/dlight.remote.impl/src/org/netbeans/modules/remote/impl/fs/RemoteFileSystem.java#L1292-L1298
