Re: [riena-dev] Always said interface not visible from class loader!

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Re: [riena-dev] Always said interface not visible from class loader!

From: Christian Campo <christian.campo@xxxxxxxxxxxx>
Date: Sun, 10 Jan 2010 17:11:44 +0100
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Hi,

I believe I only saw the MANIFEST.MF from the client not from common in your email. A usual error is that people define Eclipse-RegisterBuddy for commnication.core in their common bundle but not Require-Bundle for communication.core. How Buddy class loading only works if you all have a depenendy on the bundle that you register as a buddy.

if that does not help, please post the manifest.mf from your common bundle....

christian

Am 10.01.2010 um 17:02 schrieb 广亮梁:

This problem is very annoying

I have tried adding Eclipse-RegisterBuddy: org.eclipse.riena.communication.core to the manifest.mf of my common bundle.

But the exception still occurred when creating the proxy!

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

The following is the stacktrace:
---------------------------------

org.eclipse.core.runtime.CoreException: Plug-in com.gdb.eis.gui.client was unable to load class com.gdb.eis.gui.client.GdbUIClientApplication.
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:180)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:162)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:874)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
at org.eclipse.equinox.internorg.eclipse.core.runtime.CoreException: Plug-in com.gdb.eis.gui.client was unable to load class com.gdb.eis.gui.client.GdbUIClientApplication.
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:180)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:162)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:874)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:189)
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:368)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
at org.eclipse.equinox.launcher.Main.main(Main.java:1287)
Caused by: org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter$TerminatingClassNotFoundException: An error occurred while automatically activating bundle com.gdb.eis.gui.client (47).
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:125)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:449)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:211)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:376)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:452)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:405)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:393)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:321)
at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:231)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1193)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:160)
... 16 more
Caused by: org.osgi.framework.BundleException: Exception in com.gdb.eis.gui.client.Activator.start() of bundle com.gdb.eis.gui.client.
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:805)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:754)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:352)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:280)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:408)
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:111)
... 28 more
Caused by: java.lang.IllegalArgumentException: interface com.gdb.eis.common.service.ISystemService is not visible from class loader
at java.lang.reflect.Proxy.getProxyClass(Unknown Source)
at java.lang.reflect.Proxy.newProxyInstance(Unknown Source)
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:64)
at org.eclipse.riena.communication.core.factory.RemoteServiceFactory.createProxy(RemoteServiceFactory.java:236)
at org.eclipse.riena.communication.core.factory.RemoteServiceFactory.createAndRegisterProxy(RemoteServiceFactory.java:152)
at org.eclipse.riena.communication.core.factory.RemoteServiceFactory.createAndRegisterProxy(RemoteServiceFactory.java:129)
at org.eclipse.riena.communication.core.factory.ProxyFactory.andStart(ProxyFactory.java:68)
at com.gdb.eis.gui.client.Activator.start(Activator.java:30)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:782)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:773)
... 33 moreal.app.EclipseAppHandle.run(EclipseAppHandle.java:189)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
at org.eclipse.equinox.launcher.Main.main(Main.java:1287)
Caused by: org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter$TerminatingClassNotFoundException: An error occurred while automatically activating bundle com.gdb.eis.gui.client (47).
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:125)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:449)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:211)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:376)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:452)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:405)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:393)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:321)
at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:231)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1193)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:160)
... 16 more
Caused by: org.osgi.framework.BundleException: Exception in com.gdb.eis.gui.client.Activator.start() of bundle com.gdb.eis.gui.client.
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:805)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:754)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:352)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:280)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:408)
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:111)
... 28 more
Caused by: java.lang.IllegalArgumentException: interface com.gdb.eis.common.service.ISystemService is not visible from class loader
at java.lang.reflect.Proxy.getProxyClass(Unknown Source)
at java.lang.reflect.Proxy.newProxyInstance(Unknown Source)
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:64)
at org.eclipse.riena.communication.core.factory.RemoteServiceFactory.createProxy(RemoteServiceFactory.java:236)
at org.eclipse.riena.communication.core.factory.RemoteServiceFactory.createAndRegisterProxy(RemoteServiceFactory.java:152)
at org.eclipse.riena.communication.core.factory.RemoteServiceFactory.createAndRegisterProxy(RemoteServiceFactory.java:129)
at org.eclipse.riena.communication.core.factory.ProxyFactory.andStart(ProxyFactory.java:68)
at com.gdb.eis.gui.client.Activator.start(Activator.java:30)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:782)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:773)
... 33 more
-----------------------------

Activator.java

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

public class Activator extends AbstractRienaUIPlugin {

private static Activator plugin;
/**
* The constructor
*/
public Activator() {
}
/*
* (non-Javadoc)
* @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
*/
@Override
public void start(BundleContext context) throws Exception {
  System.out.println("start");
  super.start(context);
  // hack to force riena.core to load
  plugin = this;

  Register
  .remoteProxy(ISystemService.class)
  .usingUrl("http://localhost:8080/hessian/SystemServiceWS").withProtocol("hessian").andStart(context);
}

/*
* (non-Javadoc)
* @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
*/
public void stop(BundleContext context) throws Exception {
  super.stop(context);
  plugin = null;
  System.out.println("stop");
}

/**
* @return the shared instance
*/
public static Activator getDefault() {
  return plugin;
}
}

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

MANIFEST.MF

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

Manifest-Version: 1.0
Bundle-Name: Gdb Demo
Bundle-Activator: com.gdb.eis.gui.client.Activator
Bundle-RequiredExecutionEnvironment: J2SE-1.5
Bundle-Vendor: compeople AG
Bundle-ManifestVersion: 2
Bundle-SymbolicName: com.gdb.eis.gui.client;singleton:=true
Bundle-ActivationPolicy: lazy
Require-Bundle: org.eclipse.core.runtime,
org.eclipse.ui,
org.eclipse.ui.workbench,
org.eclipse.riena.core,
org.eclipse.riena.communication.core,
org.eclipse.core.databinding,
org.eclipse.core.databinding.beans,
org.eclipse.jface.databinding,
org.eclipse.riena.client;bundle-version="1.0.0",
org.eclipse.equinox.security;bundle-version="1.0.1"
Bundle-Version: 1.1.0
Bundle-ClassPath: .
Import-Package: com.gdb.eis.common.service,
com.gdb.eis.common.service.po,
com.gdb.eis.common.util

好玩贺卡等你发，邮箱贺卡全新上线！<ATT00001.c>

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