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Re: [imp-dev] Can't find UniversalEditor

Hi Andy,

I haven't seen this problem specifically, so I don't have any quick guess as to what might be going on.

To clarify the situation, is this problem occurring with a new version of Eclipse?  And are both your new and older distributions running into this problem with the new version of Eclipse?

Do your older distributions continue to work with the versions of Eclipse with which they worked before?  Can you try your new distribution in any of the older Eclipses?

In the Eclipse where the problem occurs, can you verify whether the IMP Runtime feature is installed?  And that you're getting the org.eclipse.imp.runtime plug-in as part of that?  Maybe the installation of IMP into Eclipse has gone wrong.

Thanks,

Stan

Stan Sutton, Ph. D.
IBM T. J. Watson Research Center
19 Skyline Drive, Hawthorne, NY 10532 USA
telephone:  1-914-784-7316, FAX:  1-914-784-7455, T/L 863
e-mail:  suttons@xxxxxxxxxx, Stan Sutton/Watson/IBM@IBMUS


"Crapo, Andrew (GE, Research)" <crapo@xxxxxx>
Sent by: imp-dev-bounces@xxxxxxxxxxx

03/24/2009 08:30 AM

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[imp-dev] Can't find UniversalEditor





Out of the blue my IMP-generated language plugin distribution has stopped working. The IDE works in the PDE but when I distribute upon trying to load a file of the language in the editor, I get this error:

java.lang.ClassNotFoundException: org.eclipse.imp.editor.UniversalEditor
       at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:402)
       at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:347)
       at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)
       at java.lang.ClassLoader.loadClass(Unknown Source)
       at org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:278)
       at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227)
       at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1245)
       at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:147)

        at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:759)
       at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)

        at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)

        at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:242)
…..

Don't know what has changed. Even distributions that worked before have stopped working, suggesting that the change is not in the distribution but in the Eclipse environment into which the distribution is being added as a set of plugins.

Any insights would be greatly appreciated as this has me stumped.

Andrew Crapo
Information Scientist
GE Global Research

T +1 518 387 5729
F +1 518 387 6104
D *833 5729
E crapo@xxxxxxxxxxxxxxx
www.research.ge.com

One Research Circle
Niskayuna, NY 12309 USA
General Electric Company

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