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XiLai Dai

about Packages Exported by Multiple Bundles

Hello,

Got a problem about Packages Exported by Multiple Bundles. There are 2 bundles exported org.apache.derby.jdbc package.

karaf@trun>install –s mvn:org.apache.servicemix.bundles/org.apache.servicemix.bundles.derbynet/10.8.1.2_1

karaf@trun>install -s mvn:org.apache.derby/derbyclient/10.8.1.2

karaf@trun> list

[ 222] [Active ] [ ] [ ] [ 60] Apache ServiceMix :: Bundles :: derbynet (10.8.1.2_1)

[ 238] [Active ] [ ] [ ] [ 60] Apache Derby 10.8 (10.8.1000002.1095077)

karaf@trun> exports | grep derby.jdbc

222 org.apache.derby.jdbc; version="10.8.1.2"

238 org.apache.derby.jdbc; version="0.0.0"

Then, install a bundle with Import-Package like this:

Import-Package: javax.sql,org.apache.derby.jdbc,org.osgi.service.bluepri

nt;version="[1.0.0,2.0.0)",org.osgi.service.cm;version="[1.3,2)"

will throw a ClassNotFoundException:

Caused by: java.lang.ClassNotFoundException: org.apache.derby.jdbc.ClientDataSource

at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:460)[osgi-3.6.2.R36x_v20110210.jar:]

at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)[osgi-3.6.2.R36x_v20110210.jar:]

at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)[osgi-3.6.2.R36x_v20110210.jar:]

at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)[osgi-3.6.2.R36x_v20110210.jar:]

at java.lang.ClassLoader.loadClass(ClassLoader.java:248)[:1.6.0_24]

at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:338)[osgi-3.6.2.R36x_v20110210.jar:]

at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:232)[osgi-3.6.2.R36x_v20110210.jar:]

at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1197)[osgi-3.6.2.R36x_v20110210.jar:]

at org.apache.aries.blueprint.container.BlueprintContainerImpl.loadClass(BlueprintContainerImpl.java:384)[10:org.apache.aries.blueprint:0.3.1]

at org.apache.aries.blueprint.container.BlueprintRepository.loadClass(BlueprintRepository.java:381)[10:org.apache.aries.blueprint:0.3.1]

at org.apache.aries.blueprint.container.GenericType.parse(GenericType.java:113)[10:org.apache.aries.blueprint:0.3.1]

at org.apache.aries.blueprint.di.AbstractRecipe.loadType(AbstractRecipe.java:110)[10:org.apache.aries.blueprint:0.3.1]

... 18 more

If uninstall bundle 222, then, the app bundle will be installed successful.

How to process this kind of problem of package exported from multi bundles within karaf?

Thanks.

Xilai

Freeman-2

Re: about Packages Exported by Multiple Bundles

Hi,

You really shouldn't install multiple bundles with same package and same version, otherwise you'll encounter the well-known split-package issue in OSGi container.

Freeman

On 2012-4-5, at 下午4:39, XiLai Dai wrote:

Hello,

Got a problem about Packages Exported by Multiple Bundles. There are 2 bundles exported org.apache.derby.jdbc package.

karaf@trun>install –s mvn:org.apache.servicemix.bundles/org.apache.servicemix.bundles.derbynet/10.8.1.2_1
karaf@trun>install -s mvn:org.apache.derby/derbyclient/10.8.1.2

karaf@trun> list
[ 222] [Active     ] [            ] [       ] [   60] Apache ServiceMix :: Bundles :: derbynet (10.8.1.2_1)
[ 238] [Active     ] [            ] [       ] [   60] Apache Derby 10.8 (10.8.1000002.1095077)

karaf@trun> exports | grep derby.jdbc
   222 org.apache.derby.jdbc; version="10.8.1.2"
   238 org.apache.derby.jdbc; version="0.0.0"

Then, install a bundle with Import-Package like this:
Import-Package: javax.sql,org.apache.derby.jdbc,org.osgi.service.bluepri
nt;version="[1.0.0,2.0.0)",org.osgi.service.cm;version="[1.3,2)"

will throw a ClassNotFoundException:
Caused by: java.lang.ClassNotFoundException: org.apache.derby.jdbc.ClientDataSource
         at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:460)[osgi-3.6.2.R36x_v20110210.jar:]
         at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)[osgi-3.6.2.R36x_v20110210.jar:]
         at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)[osgi-3.6.2.R36x_v20110210.jar:]
         at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)[osgi-3.6.2.R36x_v20110210.jar:]
         at java.lang.ClassLoader.loadClass(ClassLoader.java:248)[:1.6.0_24]
         at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:338)[osgi-3.6.2.R36x_v20110210.jar:]
         at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:232)[osgi-3.6.2.R36x_v20110210.jar:]
         at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1197)[osgi-3.6.2.R36x_v20110210.jar:]
         at org.apache.aries.blueprint.container.BlueprintContainerImpl.loadClass(BlueprintContainerImpl.java:384)[10:org.apache.aries.blueprint:0.3.1]
         at org.apache.aries.blueprint.container.BlueprintRepository.loadClass(BlueprintRepository.java:381)[10:org.apache.aries.blueprint:0.3.1]
         at org.apache.aries.blueprint.container.GenericType.parse(GenericType.java:113)[10:org.apache.aries.blueprint:0.3.1]
         at org.apache.aries.blueprint.di.AbstractRecipe.loadType(AbstractRecipe.java:110)[10:org.apache.aries.blueprint:0.3.1]
         ... 18 more

If uninstall bundle 222, then, the app bundle will be installed successful.

How to process this kind of problem of package exported from multi bundles within karaf?

Thanks.
Xilai

---------------------------------------------

Freeman Fang

FuseSource

Email:[hidden email][hidden email]

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Twitter: freemanfang

Blog: http://freemanfang.blogspot.com

http://blog.sina.com.cn/u/1473905042

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XiLai Dai

RE: about Packages Exported by Multiple Bundles

Thanks Freeman!

But even for the bundle declared not sealed ?

In the MANIFEST.MF of derbyclient:

Name: org/apache/derby/jdbc/

Sealed: false

Thanks.

Xilai

From: Freeman Fang [mailto:[hidden email]]
Sent: Thursday, April 05, 2012 4:51 PM
To: [hidden email]
Subject: Re: about Packages Exported by Multiple Bundles