The BundleLoader class is an internal (non-API) class of equinox which we refactored into another package in 3.5 (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=246132). The BundleLoader class now lives in the org.eclipse.osgi.internal.loader package. You will have to import that package instead of the org.eclipse.osgi.framework.internal.core package to use the addDynamicImportPackage method.
Tom
From: Craig Setera <[email protected]>
To: Equinox development mailing list <[email protected]>
Date: 01/15/2009 07:35 PM
Subject: [equinox-dev] Eclipse DSDP/MTJ Bundle Loader Hooks Trouble in
Galileo
Hello Eclipse Runtime experts,
In order to provide preprocessor support for low-end Java devices/
phones, EclipseME/MTJ has hooked into JDT by using a Classloader hook
for a few releases. This has worked fine until recent Galileo
builds. One of our users let us know that our runtime hooks are no
longer working on the Galileo builds. The exception stack trace the
user is seeing is:
> Caused by: java.lang.NoClassDefFoundError: org/eclipse/osgi/
> framework/internal/core/BundleLoader
> at
> org
> .eclipse
> .mtj.core.hooks.MTJClassLoadingHook.createClassLoader(Unknown Source)
> at
> org
> .eclipse.osgi.baseadaptor.BaseData.createClassLoader(BaseData.java:92)
> at
> org
> .eclipse
> .osgi.internal.loader.BundleLoader.createBCL(BundleLoader.java:821)
> at
> org
> .eclipse
> .osgi
> .internal.loader.BundleLoader.createBCLPrevileged(BundleLoader.java:
> 810)
> at
> org
> .eclipse
> .osgi
> .internal.loader.BundleLoader.createClassLoader(BundleLoader.java:356)
> at
> org
> .eclipse
> .osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:317)
> at
> org
> .eclipse
> .osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:
> 227)
> at
> org
> .eclipse
> .osgi
> .framework
> .internal
> .core.AbstractBundle.loadBundleActivator(AbstractBundle.java:142)
> ... 10 more
The hook is configured using:
public void addHooks(HookRegistry hookRegistry) {
if (Debug.DEBUG_GENERAL) {
System.out.println("Adding MTJ class loading hook");
}
hookRegistry.addClassLoadingHook(new MTJClassLoadingHook());
}
The offending code:
public BaseClassLoader createClassLoader(ClassLoader parent,
ClassLoaderDelegate delegate, BundleProtectionDomain
domain,
BaseData data, String[] bundleclasspath) {
boolean isJdtCore = "org.eclipse.jdt.core".equals(data
.getSymbolicName());
boolean isEclipseBundleLoader = delegate instanceof
BundleLoader;
// If the bundle loader is of the current type and is for
// the JDT core bundle, we will go ahead and force an OSGi
"wire"
// back to our package implementation from the JDT plug-in.
if (isEclipseBundleLoader && isJdtCore) {
if (Debug.DEBUG_GENERAL) {
System.out
.println("Adding dynamic import into JDT Core
bundle");
}
try {
ManifestElement[] dynamicElements = ManifestElement
.parseHeader("DynamicImport-Package",
"org.eclipse.mtj.core.hook.sourceMapper");
((BundleLoader) delegate)
.addDynamicImportPackage(dynamicElements);
} catch (BundleException e) {
if (Debug.DEBUG_GENERAL) {
e.printStackTrace();
}
}
}
// Let the framework know that we did not create the
classloader
return null;
}
Any insights into how we can resolve these issues would be
appreciated. I've noticed discussion of the new OSGi ServiceHooks
features and I didn't know if it was somewhat related.
Thanks,
Craig
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