java.lang.NullPointerException: This exception has no message.

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

Do you know how to solve this issue? Write a tip to help other users and build your expert profile.

Solutions on the web

via Appcelerator JIRA by Steven Elberling, 1 year ago
This exception has no message.
via Appcelerator JIRA by Steven Elberling, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at org.eclipse.swt.dnd.DropTarget.drop(DropTarget.java:687)
at org.eclipse.swt.dnd.DropTarget.performDragOperation(DropTarget.java:729)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:220)
at org.eclipse.swt.widgets.Widget.mouseDownSuper(Widget.java:1025)
at org.eclipse.swt.widgets.Tree.mouseDownSuper(Tree.java:1975)
at org.eclipse.swt.widgets.Widget.mouseDown(Widget.java:1021)
at org.eclipse.swt.widgets.Control.mouseDown(Control.java:2263)
at org.eclipse.swt.widgets.Tree.mouseDown(Tree.java:1942)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:220)
at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:1959)
at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2025)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:4589)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:115)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
at com.aptana.rcp.IDEApplication.start(IDEApplication.java:125)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)

Users with the same issue

You are the first who have seen this exception. Write a tip to help other users and build your expert profile.

Write tip

Know the solutions? Share your knowledge to help other developers to debug faster.