Re: [eclipse-dev] org.osgi.framework.bootdelegation not working?

[BJ Hargrave <hargrave@xxxxxxxxxx>]

Tom,

I think you mean: 

-Dorg.osgi.framework.bundle.parent=app

to have bundle's class loaders parented
by the application class loader. :-)
--

BJ Hargrave Senior Technical Staff Member, IBM OSGi Fellow and CTO of the OSGi Alliance hargrave@xxxxxxxxxx

office: +1 386 848 1781 mobile: +1 386 848 3788

From:      
 Thomas Watson/Austin/IBM@IBMUS
To:      
 bruce@xxxxxxxxxxxx,
"General development mailing list of the Eclipse project." <eclipse-dev@xxxxxxxxxxx>
Date:      
 2011/04/11 09:22
Subject:    
   Re: [eclipse-dev]
org.osgi.framework.bootdelegation not working?
Sent by:    
   eclipse-dev-bounces@xxxxxxxxxxx

---

The org.osgi.framework.bootdelegation property is used
to list packages that should be boot delegated. Setting it to "true"
only boot delegates for classes in the "true" package. You indicated
that you have tried to use the actual package name so that is not the only
issue for getting this to work. To launch the framework you are using the
following command line:

java -cp org.eclipse.osgi_3.6.2.R36x_v20110210.jar:bootclasses.jar \
        -Dorg.osgi.framework.bootdelegation=true
        -Dosgi.configuration.area=some/Path
        org.eclipse.core.runtime.adaptor.EclipseStarter


The issue is that you are placing the bootclasses.jar on the application
class loader along with the org.eclipse.osgi jar. This is not the boot
class loader. Bundle class loaders are not by default parented by the application
class loader. They are parented by the boot class loader. You will need
to place you jar on the boot class path of the VM (with some VM specific
setting) or another option is to use a framework configuration property
to cause the bundle class loader parent to be the application class loader
with the option org.osgi.framework.bundle.parent=boot. The following should
work:

java -cp org.eclipse.osgi_3.6.2.R36x_v20110210.jar:bootclasses.jar \
        -Dorg.osgi.framework.bootdelegation=true
        -Dosgi.configuration.area=some/Path
-Dorg.osgi.framework.bundle.parent=boot
        org.eclipse.core.runtime.adaptor.EclipseStarter

Tom

Bruce
Bohannan ---04/11/2011 01:32:42 AM---I am trying to get eclipse-osgi running
in a standalone java program and am having problems with getting bootclass
delegation t

From:	Bruce Bohannan <bbohannan@xxxxxxxxx>
To:	eclipse-dev@xxxxxxxxxxx
Date:	04/11/2011 01:32 AM
Subject:	[eclipse-dev] org.osgi.framework.bootdelegation not working?

---

I am trying to get eclipse-osgi running in a standalone java program and
am having problems with getting bootclass delegation to work.


I have a simple example, with a bootclasses.jar with one class in it ("com.rsc.nonBundle.Bob").

The tinkertoy class is 

package com.rsc.nonBundle;

/**
 * class example to be put on the classpath, not in a bundle
 */
public class Bob
{
   public Bob()
   {
   }
}

I  have s simple OSGI plugin which runs fine.  When I add this
to my derived BundleActivator's start() method

        // look for a class on the system
class path

        try
        {
           Bob bob =
new Bob();
           System.out.println("Activator.
start() found non-bundle class");
        }
        catch(Throwable e)
        {
           System.out.println("Activator.start()
didn't find non-bundle class");
           e.printStackTrace();
        }

then it starts throwing a ClassNotFound exception.

I've tried to run it with org.osgi.framework.bootdelegation defined to
true

java -cp org.eclipse.osgi_3.6.2.R36x_v20110210.jar:bootclasses.jar \
        -Dorg.osgi.framework.bootdelegation=true
        -Dosgi.configuration.area=some/Path
        org.eclipse.core.runtime.adaptor.EclipseStarter

Here is the stack trace:

runE:
     [java] Activator Start
     [java] In Factory Accessor
     [java] In Factory Accessor returning: com.rsc.vtk.impl.fragment2.Fragment2Factory@28bb0d0d
     [java] In getMessage
     [java] com.vividsolutions.jts.JTSVersion
     [java] Activator.start() didn't find non-bundle
class
     [java] java.lang.NoClassDefFoundError: com/rsc/nonBundle/Bob
     [java]     at com.rsc.vtk.impl.host.Activator.start(Activator.java:38)
     [java]     at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:783)
     [java]     at java.security.AccessController.doPrivileged(Native
Method)
     [java]     at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:774)
     [java]     at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:755)
     [java]     at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:370)
     [java]     at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:374)
     [java]     at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1067)
     [java]     at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:561)
     [java]     at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:546)
     [java]     at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:459)
     [java]     at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
     [java]     at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:440)
     [java]     at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:227)
     [java]     at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:337)
     [java] Caused by: java.lang.ClassNotFoundException:
com.rsc.nonBundle.Bob
     [java]     at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:506)
     [java]     at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
     [java]     at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
     [java]     at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
     [java]     at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
     [java]     ... 15 more

I have experimented with setting osgi.compatibility.bootdelegation=false
and org.osgi.framework.bootdelegation=* to no avail.

I've tried org.osgi.framework.system.packages=com.rsc.nonBundle to no avail.

I'm running with a newish copy of org.eclipse.osgi.jar (org.eclipse.osgi_3.6.2.R36x_v20110210.jar)

I'm sure I'm doing something wrong: Der Google does not show many hits
on this property not working.

Any help would be appreciated.

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