[kulkarni_ash]

Hi
I recently installed eclipse 3.1.2 and latest version of myeclipse ide which is 4.1.1 GA
I imported my existing web project and was trying to modify a jsp
When i try to open the jsp in advanced jsp editor, it simply comes out blank
This is the error log
ENTRY org.eclipse.ui 4 0 2006-03-21 09:10:07.114
!MESSAGE java.lang.NoClassDefFoundError
!STACK 0
java.lang.NoClassDefFoundError
at com.genuitec.eclipse.webdesigner2.flyoutpalette.PaletteViewerProvider.createPaletteViewer(PaletteViewerProvider.java:72)
at com.genuitec.eclipse.webdesigner2.flyoutpalette.FlyoutPaletteComposite.setState(FlyoutPaletteComposite.java:561)
at com.genuitec.eclipse.webdesigner2.flyoutpalette.FlyoutPaletteComposite.updateState(FlyoutPaletteComposite.java:606)
at com.genuitec.eclipse.webdesigner2.flyoutpalette.FlyoutPaletteComposite.<init>(FlyoutPaletteComposite.java:199)
at com.genuitec.eclipse.webdesigner2.HTMLMultiPageEditorPart.createDesignerControls(HTMLMultiPageEditorPart.java:488)
at com.genuitec.eclipse.webdesigner2.HTMLMultiPageEditorPart.createDesignPage(HTMLMultiPageEditorPart.java:480)
at com.genuitec.eclipse.webdesigner2.HTMLMultiPageEditorPart.createPages(HTMLMultiPageEditorPart.java:260)
at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:241)
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:609)
at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:384)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:552)
at org.eclipse.ui.internal.PartPane.requestActivation(PartPane.java:239)
at org.eclipse.ui.internal.EditorPane.requestActivation(EditorPane.java:88)
at org.eclipse.ui.internal.presentations.PresentablePart.setFocus(PresentablePart.java:137)
at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation$1.handleEvent(TabbedStackPresentation.java:92)
at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:267)
at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:272)
at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.handleMouseDown(AbstractTabFolder.java:342)
at org.eclipse.ui.internal.presentations.util.AbstractTabFolder$3.mouseDown(AbstractTabFolder.java:79)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:133)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3125)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2758)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
at org.eclipse.core.launcher.Main.run(Main.java:973)
at org.eclipse.core.launcher.Main.main(Main.java:948)

And this is my system configuration

*** Date: Tue Mar 21 09:16:30 EST 2006

*** System properties:
OS=WindowsXP
OS version=5.1
Java version=1.4.2_06

*** MyEclipse details:
MyEclipse Enterprise Workbench

Version: 4.1.1 GA
Build id: 20060309-4.1.1-GA

*** Eclipse details:
Eclipse SDK

Version: 3.1.2
Build id: M20060118-1600

Eclipse Platform

Version: 3.1.2
Build id: M20060118-1600

Eclipse Java Development Tools

Version: 3.1.2
Build id: M20060118-1600

Eclipse Graphical Editing Framework

Version: 3.1
Build id: 200602241621

Eclipse Project SDK

Version: 3.1.2
Build id: M20060118-1600

Eclipse RCP

Version: 3.1.2
Build id: M20060118-1600

Eclipse Plug-in Development Environment

Version: 3.1.2
Build id: M20060118-1600

Eclipse startup command=-os
win32
-ws
win32
-arch
x86
-launcher
C:\eclipse3.1.2\eclipse\eclipse.exe
-name
Eclipse
-showsplash
600
-exitdata
d98_78
-vm
C:\WINDOWS\system32\javaw.exe

[Riyad Kalla]

This really looks like an install issue for the designer to cough up a noclassdef exceptions pertaining to it’s own palette. What would also cause this is if you have WTP or GEF installed already. Check your <Eclipse Dir>\plugins directory and look for any WTP (*wtp*) plugins or GEF (*gef*) plugins, do you have them installed already? Both will cause conflicts with MyEclipse and cause it to do what you saw above.

Also if you had a previous version of MyEclipse installed and upgraded it by simply running the installer ontop of the old copy, that can also break an install and should be avoided.

Also try restarting using the -clean command line argument and see if that can clean up anything that might be causing this (stale plugin state).

[kulkarni_ash]

Hi
I have GEF installed because i need to use GEF for VE plugin, i need to do swing development using VE.
this is the version of VE i have org.eclipse.gef_3.2.0.M20060224.
Why cannot i upgrade from previous version of myeclipseide, i have other plugins like gotofile, VSS plugin , and more.
Each time i upgrade i need to reinstall everythign again, this will be a big downtime if i have big team doing this.
What should i do to resolve this issue, this is affecting our development

[kulkarni_ash]

Hello
Does myeciplseide has a solution for my problem or not?????????

[Kapil Kapre]

kulkarni_ash,
As Riyad said, this is a installation issue. We supply our own GEF library along with MyEclipse for techincal reasons and plugins that expect another version will not work too well side by side. The best solution is therefore to have two seperate eclipse installs. You can naturally have a single workspace shared among the two. Also you dont need to re-install eclipse every time we release a new version what Riyad said was that you shouldnt upgrade by overwriting an earlier installation. You can use our Auto-Updater which is integrated in eclipse (Help>Software Updates). Just make sure that Install/Update Preference (in eclipse preferences) is set to “Compatible”. Hope that answered your questions.

[Author]

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