Running: Win XP, jEdit 4.3pre10, JDK 1.5, JRE 1.6.<\n> Plugins: Archive, Console, Error List, Java Core, JCompiler, Java Debugger 1.5, etc. I can't get Java Debugger to start. After docking it to the right part of the main-window and clicking the icon I get: java.lang.NoClassDefFoundError at debugger.gui.DebugWindow.class$(DebugWindow.java:64) at debugger.gui.DebugWindow.(DebugWindow.java:62) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at bsh.Reflect.constructObject(Reflect.java:620) at bsh.BSHAllocationExpression.constructObject(BSHAllocationExpression.java:123) at bsh.BSHAllocationExpression.objectAllocation(BSHAllocationExpression.java:114) at bsh.BSHAllocationExpression.eval(BSHAllocationExpression.java:62) at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:102) at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:47) at bsh.Interpreter.eval(Interpreter.java:645) at bsh.Interpreter.eval(Interpreter.java:739) at bsh.Interpreter.eval(Interpreter.java:728) at org.gjt.sp.jedit.BeanShell._eval(BeanShell.java:432) at org.gjt.sp.jedit.BeanShell.eval(BeanShell.java:396) at org.gjt.sp.jedit.gui.DockableWindowFactory$Window.createDockableWindow(DockableWindowFactory.java:412) at org.gjt.sp.jedit.gui.DockableWindowManager.showDockableWindow(DockableWindowManager.java:324) at org.gjt.sp.jedit.gui.PanelWindowContainer$ActionHandler.actionPerformed(PanelWindowContainer.java:421) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.JToggleButton$ToggleButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Window.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Caused by: java.lang.ClassNotFoundException: debugger.gui.IOPanel at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at org.gjt.sp.jedit.JARClassLoader.loadFromParent(JARClassLoader.java:469) at org.gjt.sp.jedit.JARClassLoader.loadClass(JARClassLoader.java:86) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClassInternal(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) ... 46 more Clicking ok there brings another popup saying: Plugin Error Cannot start: java.lang.RuntimeException: Debugger PLugin Requires JDK (not JRE) 1.3 or above. Try updating to a never version of the plugin. As said before I have JDK 1.5 and Java Debugger 1.5. After looking around I suspect the Java Core plugin options aren't set properly. I haven't found any info on how to do this correctly. Is there anyone who can help me with this, I'd be grateful! //Carl