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org.eclipse.equinox.weaving.hook and custom target platform [message #647691]

Fri, 07 January 2011 13:58

Eclipse User

Hi all!

We have some code where we use Equinox Aspects with the org.eclipse.equinox.weaving.hook. We also have our own target platform that we instantiate when we do development. We have added the hook bundle fragment to our target platform, however, we always end up getting this error:

!ENTRY org.eclipse.osgi 4 0 2011-01-07 12:55:32.672
!MESSAGE Bundle org.eclipse.equinox.weaving.hook not found.
[org.eclipse.equinox.weaving.aspectj] info Starting AspectJ weaving service ...
java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.weaving.aspectj.AspectJWeavingActivator.start(Unknown Source)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:783)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:774)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:755)
	at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:370)
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:374)
	at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1067)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:561)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:546)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:459)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:440)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:227)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:337)
Caused by: java.lang.NoClassDefFoundError: org/eclipse/equinox/service/weaving/IWeavingServiceFactory
	at org.eclipse.equinox.weaving.aspectj.AspectJWeavingStarter.start(Unknown Source)
	... 19 more
Caused by: java.lang.ClassNotFoundException: org.eclipse.equinox.service.weaving.IWeavingServiceFactory
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:460)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
	... 20 more

We've resolved this in our command-line version of our program by including the hook jar on the classpath. What we'd like to do is have a PDE run configuration that works as well. Is this possible? I don't see a way for us to specify the hook jar in the classpath on either the run configuration or in the target platform editor.

Re: org.eclipse.equinox.weaving.hook and custom target platform [message #647722 is a reply to message #647691]

Fri, 07 January 2011 23:01

Eclipse User

I am not exactly sure why you are seeing this problem. But, here is a possibility.

Make sure that your org.eclipse.osgi bundle is in the same directory as your o.e.e.weaving.hook fragment. This means that in your workspace, you should import the o.e.osgi bundle as a binary plugin project. Alternatively, you can use the variants of the bundles that are in your Eclipse's plugins directory.

Re: org.eclipse.equinox.weaving.hook and custom target platform [message #647952 is a reply to message #647691]

Mon, 10 January 2011 10:14

Eclipse User

Hi Andrew!

Thanks for the reply. Yeah, that was one track I was going down, trying to figure out, in a target platform, which org.eclipse.osgi bundle are we using? Because the target platform doesn't give us a way to say what that should be, I guess I should assume that it's using the IDE's platform bundle. And then we would need to use not our hook bundle, but that which comes with AJDT and is installed in the IDE's plugins directories.

That's a good point, let me try that and see where that lands me.

Thanks!

Cheers,
Craig

Re: org.eclipse.equinox.weaving.hook and custom target platform [message #647979 is a reply to message #647952]

Mon, 10 January 2011 11:24

Eclipse User

The easiest thing to do (which is the way I recommend anyone developing AJDT should work) is to import all of the relevant weaving bundles as well as your target osgi bundle into the workspace as binary plugins. This way you are sure that all of the bundles are correct and colocated.

Then, of course, you need to make sure two more things:

1. the org.eclipse.equinox.weaving.aspectj bundle is autostarted
2. the config.ini for your launch configuration has the osgi.framework.extensions=org.eclipse.equinox.weaving.hook
line.

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