[DrJava] [ drjava-Bugs-3004294 ] Exception when changing to debug mode

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Bugs item #3004294, was opened at 2010-05-19 16:36
Message generated for change (Tracker Item Submitted) made by baonn
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Bao N. Nguyen (baonn)
Assigned to: Nobody/Anonymous (nobody)
Summary: Exception when changing to debug mode

Initial Comment:
The following steps produce an error

1. Start a fresh copy of DrJava
2. Debugger/Debug Mode

java.lang.Error: no Connectors loaded
	at com.sun.tools.jdi.VirtualMachineManagerImpl.<init>(VirtualMachineManagerImpl.java:141)
	at com.sun.tools.jdi.VirtualMachineManagerImpl.virtualMachineManager(VirtualMachineManagerImpl.java:65)
	at com.sun.jdi.Bootstrap.virtualMachineManager(Bootstrap.java:54)
	at edu.rice.cs.drjava.model.debug.jpda.JPDADebugger._getAttachingConnector(JPDADebugger.java:986)
	at edu.rice.cs.drjava.model.debug.jpda.JPDADebugger._attachToVM(JPDADebugger.java:962)
	at edu.rice.cs.drjava.model.debug.jpda.JPDADebugger.startUp(JPDADebugger.java:213)
	at edu.rice.cs.drjava.ui.MainFrame.debuggerToggle(MainFrame.java:4242)
	at edu.rice.cs.drjava.ui.MainFrame$126.actionPerformed(MainFrame.java:2411)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.JToggleButton$ToggleButtonModel.setPressed(JToggleButton.java:291)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1223)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1264)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
	at java.awt.Component.processMouseEvent(Component.java:6263)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
	at java.awt.Component.processEvent(Component.java:6028)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2478)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)



System Properties:
DrJava Version drjava-20100507-r5246
DrJava Build Time 20100507-2048
JDK Sun 1.6_20
OS: Ubuntu 10.04





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