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Re: [riena-dev] Interface not visible from class loader!
Hi Yau,

in order for Buddy as proposed below to work, the common bundle must also be dependant on org.eclipse.riena.communication.core.

So you need two things, the register buddy and the dependency both referencing o.e.r.communication.core

christian

Am 27.03.2009 um 05:48 schrieb Stefan Liebig:

Hi Yau,

Try adding:
Eclipse-RegisterBuddy: org.eclipse.riena.communication.core
to the manifest.mf of your common bundle.

See also in the ping pong example bundle: org.eclipse.riena.communication.sample.pingpong.common

Tschüß,
Stefan

yau wrote: 
Hi, Stefan Liebig
Thanks for your reply!


  
In your common bundle:
- is the interface ITestService
- in it´s activator it references ITestService the first time  with
    
Class<?> servIntf = ITestService.class; (does not fail here!)

Yes, I run in debug mode and set a bookmark on the statement:
Class<?> servIntf = ITestService.class;
and step over, it is not failed.



  
- and than fails with an exception when creating the proxy
    
Yes, an exception raised at
rsf.createAndRegisterProxy(servIntf, url, protocol, context);




  
Can you please provide a stacktrace, the activator and the ITestService?
    

The common plugin activator:
=========================
package cn.com.dwservice.dw2appservcommon;
import ....;

public class Activator implements BundleActivator {

 private RemoteServReg remoteServReg;

 public void start(BundleContext context) throws Exception {
  remoteServReg = new RemoteServReg();
  remoteServReg.start(context);
 }

 public void stop(BundleContext context) throws Exception {
  if (remoteServReg != null) {
   remoteServReg.stop(context);
   remoteServReg = null;
  }
 }


The RemoteServReg.java
=============================
package cn.com.dwservice.dw2appservcommon;
import ....;

public class RemoteServReg {

 private IRemoteServiceRegistration remoteServReg;

 public void start(BundleContext context) throws Exception {
  RemoteServiceFactory rsf = new RemoteServiceFactory();
  Class<?> servIntf = ITestService.class;
  String url = "" class="moz-txt-link-rfc2396E" href="http://127.0.0.1:8080/dwserver/test/testService">"http://127.0.0.1:8080/dwserver/test/testService";
  String protocol = DWServConsts.REMOTE_PROTOCOL_HESSIAN;

  remoteServReg = rsf.createAndRegisterProxy(servIntf, url, protocol, context);
 }

 public void stop(BundleContext context) throws Exception {
  if (remoteServReg != null) {
   remoteServReg.unregister();
   remoteServReg = null;
  }
 }
}


The ITestService.java
============================
package cn.com.dwservice.dw2appservcommon.model;

public interface ITestService {
 String testPermission();
}



The following is the stacktrace:
=====================

java.lang.NoClassDefFoundError: cn/com/dwservice/dw2appservcommon/model/ITestService
 at cn.com.dwservice.dwserver2.tests.TestRienaWebService.internalRun(TestRienaWebService.java:54)
 at net.yau.eclipse.common.dialogs.TestRunnableObjBase.run(TestRunnableObjBase.java:29)
 at net.yau.eclipse.common.dialogs.SelectiveRunDialog$1.widgetSelected(SelectiveRunDialog.java:91)
 at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:228)
 at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
 at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
 at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
 at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
 at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
 at org.eclipse.jface.window.Window.open(Window.java:801)
 at cn.com.dwservice.dwserver2.tests.TestAction.run(TestAction.java:46)
 at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
 at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:583)
 at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:500)
 at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
 at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
 at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
 at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
 at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
 at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2384)
 at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2348)
 at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2200)
 at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:495)
 at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
 at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:490)
 at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
 at cn.com.dwservice.dwserver2.Application.start(Application.java:20)
 at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
 at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
 at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
 at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:386)
 at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
 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.launcher.Main.invokeFramework(Main.java:549)
 at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
 at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
 at org.eclipse.equinox.launcher.Main.main(Main.java:1212)


Caused by: org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter$TerminatingClassNotFoundException: An error occurred while automatically activating bundle cn.com.dwservice.dw2AppServCommon (194).
 at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:125)
 at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:427)
 at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:193)
 at org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:370)
 at org.eclipse.osgi.framework.internal.core.SingleSourcePackage.loadClass(SingleSourcePackage.java:33)
 at org.eclipse.osgi.framework.internal.core.BundleLoader.findClassInternal(BundleLoader.java:443)
 at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:399)
 at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:387)
 at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:87)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
 at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
 ... 40 more


Caused by: org.osgi.framework.BundleException: Exception in cn.com.dwservice.dw2appservcommon.Activator.start() of bundle cn.com.dwservice.dw2AppServCommon.
 at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:1028)
 at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:984)
 at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:346)
 at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:265)
 at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:400)
 at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:111)
 ... 50 more


Caused by: java.lang.IllegalArgumentException: interface cn.com.dwservice.dw2appservcommon.model.ITestService is not visible from class loader
 at java.lang.reflect.Proxy.getProxyClass(Proxy.java:353)
 at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:581)
 at com.caucho.hessian.client.HessianProxyFactory.create(HessianProxyFactory.java:394)
 at com.caucho.hessian.client.HessianProxyFactory.create(HessianProxyFactory.java:354)
 at org.eclipse.riena.internal.communication.factory.hessian.RemoteServiceFactoryHessian.createProxy(RemoteServiceFactoryHessian.java:73)
 at org.eclipse.riena.internal.communication.factory.hessian.RemoteServiceFactoryHessian.createProxy(RemoteServiceFactoryHessian.java:1)
 at org.eclipse.riena.communication.core.factory.RemoteServiceFactory.createProxy(RemoteServiceFactory.java:233)
 at org.eclipse.riena.communication.core.factory.RemoteServiceFactory.createAndRegisterProxy(RemoteServiceFactory.java:148)
 at org.eclipse.riena.communication.core.factory.RemoteServiceFactory.createAndRegisterProxy(RemoteServiceFactory.java:125)
 at cn.com.dwservice.dw2appservcommon.RemoteServReg.start(RemoteServReg.java:25)
 at cn.com.dwservice.dw2appservcommon.Activator.start(Activator.java:16)
 at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:1009)
 at java.security.AccessController.doPrivileged(Native Method)
 at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:1003)
 ... 55 more


Regards,
Yau

<ATT00001.c>

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