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Can't see classes from a JAR used in another plugin [message #684704]

Thu, 16 June 2011 00:50

Eclipse User

My project consists of two plugins, main and other. Plugin other uses a JAR and I want to be able to reference the classes in that JAR from plugin main. Plugin main already declares plugin other as a dependency and in plugin other I have specified the JAR file in the build properties tab and have marked all the packages in that JAR as exported in the Runtime tab. However, project main still can't see any of the packages in the desired JAR.

How do I get the packages and classes in the JAR in plugin other to be accessible to plugin main? When I export plugin other I can see that the desired JAR is included in the exported JAR so I am baffled.

Thanks,

-sbs

Re: Can't see classes from a JAR used in another plugin [message #684861 is a reply to message #684704]

Thu, 16 June 2011 07:12

Eclipse User

You can try using PDE Tools>Update Classpath on both plugins and the build clean. If that doesn't work, please post both MANIFEST.MF files.

PW

Re: Can't see classes from a JAR used in another plugin [message #685102 is a reply to message #684861]

Thu, 16 June 2011 16:24

Eclipse User

That didn't help and I am not really allowed to post any of the source of this project unfortunately.

Anyway, what I am really trying to achieve is to be able to use some JARs in plugin main and I thought the correct way to do that was to create a plugin that exports the classes in the JARs and then add that plugin as a dependency.

Is there a simpler/better way of doing it? Plugin main just can't see those exported classes from plugin other's JARs.

-sbs

Re: Can't see classes from a JAR used in another plugin [message #685549 is a reply to message #685102]

Fri, 17 June 2011 14:08

Eclipse User

That's the correct way. Create a plugin project. Import the jars (license permitting Smile

Make sure they're in the build.properties. Add them to the bundle classpath. Export the packages.

That works fine for me, package "ex" is in the version_0.1.0.jar, and generates a MANIFEST.MF that looks like:

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Extjar
Bundle-SymbolicName: z.ex.extjar
Bundle-Version: 0.1.0.qualifier
Bundle-Activator: z.ex.extjar.Activator
Require-Bundle: org.eclipse.core.runtime
Bundle-RequiredExecutionEnvironment: JavaSE-1.6
Bundle-ActivationPolicy: lazy
Bundle-ClassPath: version_0.1.0.jar,
 .
Export-Package: ex;version="0.1.0"

I only need core.runtime because I'm providing an Activator (but if you don't need one, then you can get rid of that require-bundle as well).

I was able to consume this with a Require-Bundle on z.ex.extjar.

PW

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