Question

我有一个捆绑包org.acme.plugin和一个片段org.acme.plugin.fragment。该片段定义了类EarlyStartup和使用它的扩展点：

public class EarlyStartup implements IStartup {

    @Override
    public void earlyStartup() {
        // do some magic
    }
}

<fragment>
   <extension point="org.eclipse.ui.startup">
      <startup class="org.acme.plugin.EarlyStartup" />
   </extension>
</fragment>

所有这些在RCP 4.7中都可以很好地工作，但是现在我更新到4.8，并收到以下异常：

org.eclipse.core.runtime.CoreException: Plug-in org.acme.plugin was unable to load class org.acme.plugin.EarlyStartup.
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:197)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:179)
    at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:931)
    at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
    at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:60)
    at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:281)
    at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:53)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.internal.Workbench$40.run(Workbench.java:2758)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:60)
java.lang.ClassNotFoundException: org.acme.plugin.EarlyStartup cannot be found by org.acme.plugin_1.2.3
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:508)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:419)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:411)
    at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
    at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:609)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:177)

出什么问题了？为何插件无法再找到该类？

插件找不到Fragment的EarlyStartup

0 个答案: