[news.eclipse.platform.rcp] OSGI/RCP Errors

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[news.eclipse.platform.rcp] OSGI/RCP Errors

From: sgaley343gs@xxxxxxxxx (Shaun)
Date: Tue, 13 May 2008 22:57:37 +0000 (UTC)
Newsgroups: eclipse.platform.rcp
Organization: Eclipse
User-agent: NewsPortal/0.36 (http://florian-amrhein.de/newsportal)

Hello,

I have an issue with calling an OSGI service. Using this activator code:

package com.javaworld.sample.helloworldrcp;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;

import com.javaworld.sample.helloservice.HelloService;

/** * The activator class controls the plug-in life cycle */ public class RCPActivator extends AbstractUIPlugin { public static final String PLUGIN_ID = "com.javaworld.sample.helloworldRCP"; private static RCPActivator plugin;

	public RCPActivator() {
	}

	ServiceReference helloServiceReference;

	public void start(BundleContext context) throws Exception {
		super.start(context);
		helloServiceReference = context.getServiceReference(HelloService.class
				.getName());
		HelloService helloService = (HelloService) context
				.getService(helloServiceReference);
		System.out.println(helloService.sayHello());
		plugin = this;
	}

	public void stop(BundleContext context) throws Exception {
		super.stop(context);
		context.ungetService(helloServiceReference);
		plugin = null;
	}

	public static RCPActivator getDefault() {
		return plugin;
	}

	public static ImageDescriptor getImageDescriptor(String path) {
		return imageDescriptorFromPlugin(PLUGIN_ID, path);
	}
}

I can run this project as an OSGI framework and the calls to HelloService work correctly.

If I run this same exact code as an Eclipse Application (which it is an RCP application with a view), the OSGI calls crash giving me this error.

!ENTRY org.eclipse.osgi 4 0 2008-05-13 15:49:03.220 !MESSAGE Application error !STACK 1 org.eclipse.core.runtime.CoreException: Plug-in com.javaworld.sample.helloworldRCP was unable to load class com.javaworld.sample.helloworldrcp.Application. atorg.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:180) atorg.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:162) atorg.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:788) atorg.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243) atorg.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51) atorg.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:165) atorg.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106) atorg.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76) atorg.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363) atorg.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176) atsun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) atsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) atsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) atjava.lang.reflect.Method.invoke(Method.java:597) atorg.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447) at org.eclipse.equinox.launcher.Main.run(Main.java:1173) at org.eclipse.equinox.launcher.Main.main(Main.java:1148) org.eclipse.core.runtime.CoreException[1]: org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter$TerminatingClassNotFoundException: An error occurred while automatically activating bundle com.javaworld.sample.helloworldRCP (6). atorg.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:125) atorg.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:417) atorg.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:189) atorg.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:340) atorg.eclipse.osgi.framework.internal.core.BundleLoader.findClassInternal(BundleLoader.java:408) atorg.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:369) atorg.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:357) atorg.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:289) atorg.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227) atorg.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1269) atorg.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:160) atorg.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:788) atorg.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243) atorg.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51) atorg.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:165) atorg.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106) atorg.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76) atorg.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363) atorg.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) atsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) atjava.lang.reflect.Method.invoke(Method.java:597) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447) at org.eclipse.equinox.launcher.Main.run(Main.java:1173) at org.eclipse.equinox.launcher.Main.main(Main.java:1148) Caused by: org.osgi.framework.BundleException: Exception in com.javaworld.sample.helloworldrcp.RCPActivator.start() of bundle com.javaworld.sample.helloworldRCP. at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:1018) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:974) at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:346) at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:260) at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:400) at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:111) ... 28 more Causedby:java.lang.NullPointerExceptionatorg.eclipse.osgi.framework.internal.core.BundleContextImpl.getService(BundleContextImpl.java:880) at com.javaworld.sample.helloworldrcp.RCPActivator.start(RCPActivator.java:27) at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:999) at java.security.AccessController.doPrivileged(Native Method) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:993) ... 33 more

I member of my team with the same configuration has it working on his machine, we can't seem to pinpoint the problem though.

Any suggestions would be helpful.

-Shaun

Follow-Ups:
- [news.eclipse.platform.rcp] Re: OSGI/RCP Errors
  - From: Wayne Beaton
- [news.eclipse.platform.rcp] Re: OSGI/RCP Errors
  - From: Francis Upton

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