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Bug 247905

Summary:	NoClassDefFoundError: Could not initialize class java.awt.dnd.DragSource
Product:	platform	Reporter:	xav0989
Component:	JDK Problems	Assignee:	Antonin Nebuzelsky <anebuzelsky>
Status:	RESOLVED WONTFIX
Severity:	normal	CC:	muhammadg
Priority:	P3
Version:	8.0
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:	153068
Attachments:	stacktrace

Description xav0989 2014-10-13 22:07:14 UTC

Build: NetBeans IDE 8.0.1 (Build 201408251540)
VM: Java HotSpot(TM) 64-Bit Server VM, 25.20-b23, Java(TM) SE Runtime Environment, 1.8.0_20-b26
OS: Linux

User Comments:
GUEST: after program start

GUEST: just start the netbeans ide.

GUEST: I was trying to create a new java project.

xav0989: Started the application. Oracle Java 8 on Ubuntu 14.04.1 x64. Could not reproduce.

GUEST: This problem started appearing after I upgraded from Ubuntu 13.04 to 13.10.
I'm unable to load the Projects & Files view on the side menu

GUEST: Tried to view the project files.  Please help.  It didnt do anything but throw an error.

GUEST: Trying to Show Project View

GUEST: projects not open

GUEST: The window won't let me open the project view, or anything else for that matter

GUEST: unable to view projects in netbeans 7.4

GUEST: I open NetBeans IDE 6.9.1 and I have reseted the windows, perhaps before the loading prozess of NetBeans have been finished

GUEST: NoClassDefFoundError: Could not initialize class java.awt.dnd.DragSource

GUEST: Installed in Ubuntu, click Window > Projects

GUEST: ubuntu 14.04

GUEST: A java.lang.NoClassDefFoundError exception has occurred.
Please report this at http://www.netbeans.org/community/issues.html,
including a copy of your messages.log file as an attachment.
The messages.log file is located in your /root/.netbeans/7.3.1/var/log folder.

GUEST: On ubuntu 14.04, just install netbeans 8.0 and run it. It will result in the same error




Stacktrace: 
java.lang.NoClassDefFoundError: Could not initialize class java.awt.dnd.DragSource
   at org.openide.explorer.view.ExplorerDragSupport.getDefaultGestureRecognizer(ExplorerDragSupport.java:241)
   at org.openide.explorer.view.ExplorerDragSupport.activate(ExplorerDragSupport.java:217)
   at org.openide.explorer.view.TreeView.setDragSource(TreeView.java:504)
   at org.netbeans.modules.project.ui.ProjectTab.<init>(ProjectTab.java:202)
   at org.netbeans.modules.project.ui.ProjectTab.<init>(ProjectTab.java:182)
   at org.netbeans.modules.project.ui.ProjectTab.getDefault(ProjectTab.java:332)

Comment 1 xav0989 2014-10-13 22:07:17 UTC

Created attachment 149881 [details]
stacktrace

Comment 2 xav0989 2014-10-13 22:20:34 UTC

I've been able to reproduce the bug and it is also preventing me from opening certain views (e.g. the project and file views), if I manage to get netbeans to open.

Comment 3 xav0989 2014-10-13 22:26:57 UTC

Apparently it's related to running java on MIR rather than X. https://bugs.launchpad.net/xmir/+bug/1232471

Comment 4 Ondrej Vrabec 2015-03-04 15:09:17 UTC

SEVERE [global]
java.lang.RuntimeException: failed to load system cursor: DnD.Cursor.CopyDrop : cannot load system cursor: CopyDrop.32x32
	at java.awt.dnd.DragSource.load(DragSource.java:135)
	at java.awt.dnd.DragSource.<clinit>(DragSource.java:147)

JDK problem

Comment 5 Antonin Nebuzelsky 2015-09-14 14:28:39 UTC

https://answers.launchpad.net/ubuntu/+question/236451