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| Re: Plug-in org.eclipse.buckminster.jarprocessor was unable to load class org.eclips [message #385134 is a reply to message #385133] |
Thu, 07 May 2009 11:14   |
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Apparently, that class is compiled for target 1.6 and you're using Java 1.5. Very strange indeed, since the project
setting for the target compliance level is 1.5.
I'll investigate this further and include it in a new upload during the day today.
- thomas
Oisin Hurley wrote:
> I've made progress on the build, and can now construct a plain
> p2 site (except for one feature, which causes the build to hang,
> more on that later).
>
> The next issue is around pack200 packing the site. I've simply
> added site.pack200=true to the build instruction:
>
> <buckminster command="org.eclipse.buckminster.core.perform">
> <args>
> <arg
> value=" -Dbuckminster.output.root=${base.directory}/${project.name}. site "/>
> <arg value="-Dsite.pack200=true"/>
> <arg value="-Dcbi.include.source=false"/>
> <arg value="-Dsite.signing=false"/>
> <arg value="${project.toplevel.feature}#site.p2"/>
> </args>
> </buckminster>
>
> (all this information was gleaned from Henrik's presentation
> at EclipseCon, so perhaps I'm missing out something?)
>
> An unusual error occurred
>
> [start
> org.eclipse.stp.toplevel.feature:eclipse.feature$2.0.0.20090 5070221#OSGi#copy.plugins]
>
> .
> .
> [end
> org.eclipse.stp.toplevel.feature:eclipse.feature$2.0.0.20090 5070221#OSGi#copy.plugins]
>
> Doing full workspace refresh
> Waiting for jobs to end
> org.eclipse.core.runtime.CoreException: Plug-in
> org.eclipse.buckminster.jarprocessor was unable to load class
> org.eclipse.buckminster.jarprocessor.JarProcessorActor.
>
> Further down we see the reason
> Plug-in org.eclipse.buckminster.jarprocessor was unable to load class
> org.eclipse.buckminster.jarprocessor.JarProcessorActor.
> Caused by: java.lang.UnsupportedClassVersionError:
> (org/eclipse/buckminster/jarprocessor/JarProcessorActor) bad major
> version at offset=6
>
> Normally you would see this when a 1.5-compiled class attempts to load
> in a 1.4 VM. I do have jdt.complianceLevel set to 1.5, and lsprefs
> confirms that before the perform task is run.
>
> I'm not sure what could be causing it - is there perhaps something
> I've neglected to add to the buckminster installation, some feature?
>
> Are there any examples out there of this approach?
>
> --oh
>
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