CODEWITHSUNDEEP
gradlejarosgiosgi-bundle
injecteer
injecteer

Reputation: 20699

Problems including a jar into an OSGi bundle

I have a gradle script (editor's cut):

apply plugin:'osgi'
apply plugin:'eclipse'
apply plugin:'groovy'

....

dependencies {
  ....
  compile 'org.codehaus.groovy:groovy-all:2.4.4'
  compile 'com.gmongo:gmongo:1.5'
}

jar {
  manifest {
      ....
      instruction 'Embed-Dependency', '*;scope=compile|runtime'
      instruction 'Embed-Transitive', 'true'
      instruction 'Bundle-ClassPath', '.,gmongo-1.5.jar'
  }

  from {
    configurations.compile.findAll{ !it.directory && it.name.startsWith( 'gmongo' ) }
  }
}

As soon as gmongo doesn't provide a proper bundle-manifest I must include it as a dependency.

The resulting jar structure is:

/
|..com/
|..META-INF/
|..gmongo-1.5.jar

MANIFEST.INF:

    Manifest-Version: 1.0
    Bundle-ManifestVersion: 2
    Bnd-LastModified: 1461227335334
    Bundle-ActivationPolicy: lazy
    Embed-Dependency: *;scope=compile|runtime
    Import-Package: com.gmongo,com.mongodb;version="[3.2,4)",groovy.lang;v
     ersion="[2.4,3)",....."
    Tool: Bnd-2.1.0.20130426-122213
    Export-Package: com.mozaiq.echo;version="1.0.0";uses:="com.gmongo,groo
     vy.lang,javax.servlet,javax.servlet.http,org.osgi.framework"
    Bundle-ClassPath: .,gmongo-1.5.jar
    Embed-Transitive: true
    Created-By: 1.8.0_72 (Oracle Corporation)

upon installing I'm getting

0 ERROR > Error occurred while trying to resolve bundle groovyecho.jar.20160426-110910406.jar!

org.osgi.framework.BundleException: Can't resolve groovyecho : package com.gmongo

What am I doing wrong?

UPDATE:

even if I unpack the gmongo.jar's classes:

jar {
  ....
  from {
    zipTree configurations.compile.find{ !it.directory && it.name.startsWith( 'gmongo' ) }
  }
}

I'm getting the same error.

SUMMARY:

instruction 'Import-Package', '!com.gmongo,*'

worked well for un-jared class files.

To make it work on original jar file, I had to add also

instruction 'Bundle-ClassPath', '.,gmongo-1.5.jar'

Upvotes: 4

Views: 2315

Answers (1)

BJ Hargrave
BJ Hargrave

Reputation: 9374

Well the manifest says com.gmongo must be imported. I suspect that the jar in the Bundle-Classpath is not being analyzed to see that it contains that package. So you will need to specify that the bundle does not need to import any needed packages from that embedded jar.

Import-Package: !com.gmongo,*

But given that you bundle exports com.mozaiq.echo which uses com.gmongo in its signature, you should probably export that package instead of stopping the import.

-exportcontents: com.gmongo

BTW, I don't think the Embed- instructions mean anything to the Gradle OSGi plugin which uses bnd. You can see they are just copied to the generated manifest. They are unique to the Apache Felix maven-bundle-plugin for Maven.

Upvotes: 3

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