Re: [rules-users] Drools Eclipse Plugin Problem

Hi all, I have added the Drools 4.0.6 plugin in my Eclipse v 3.2.2. I have the plugin jar containing all the required classes in the org.drools.eclipse_4.0.6.jar which is added to the plugins folder of Eclipse. But I'm getting this error when I attempt to open a .drl file. java.lang.ClassNotFoundException: org.drools.eclipse.editors.DRLRuleEditor2 at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLo ader.java:402) If I click on the 'Drools Preferences' page in Eclipse preferences, I get this error. Plug-in org.drools.eclipse was unable to load class org.drools.eclipse.preferences.DroolsPreferencePage. I looked at the console log of Eclipse and saw the following errors when Eclipse started loading. Cannot throw the type DroolsParserException compiledRules cannot be resolved parsedRules cannot be resolved Cannot throw the type DroolsParserException compiledRules cannot be resolved parsedRules cannot be resolved The type java.lang.Class cannot be resolved. It is indirectly referenced from required .class files The method getContent() is undefined for the type AbstractRuleEditor The method getContent() is undefined for the type AbstractRuleEditor String cannot be resolved to a type Cannot throw the type DroolsParserException compiledRules cannot be resolved String cannot be resolved to a type Cannot throw the type DroolsParserException compiledRules cannot be resolved compiledRules cannot be resolved ruleInfoByClassNameMap cannot be resolved The method getClassName() is undefined for the type DRLInfo.RuleInfo functionInfoByClassNameMap cannot be resolved The method getClassName() is undefined for the type DRLInfo.FunctionInfo parsedRules cannot be resolved Cannot throw the type DroolsParserException String cannot be resolved to a type Cannot throw the type DroolsParserException The type java.lang.Thread cannot be resolved. It is indirectly reference d from required .class files The type java.io.File cannot be resolved. It is indirectly referenced fr om required .class files The type java.net.URL cannot be resolved. It is indirectly referenced fr om required .class files String cannot be resolved to a type String cannot be resolved to a type The hierarchy of the type MyResourceVisitor is inconsistent Implicit super constructor Object() is undefined for default constructor . Must define an explicit constructor Cannot throw the type CoreException at org.drools.eclipse.DroolsEclipsePlugin.<init>(Unknown Source) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct orAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC onstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:494) at java.lang.Class.newInstance0(Class.java:350) at java.lang.Class.newInstance(Class.java:303) at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleAct ivator(AbstractBundle.java:136) ... 72 more Root exception: java.lang.Error: Unresolved compilation problems: The type java.io.InputStream cannot be resolved. It is indirectly refere nced from required .class files The type java.lang.ClassLoader cannot be resolved. It is indirectly refe renced from required .class files The type java.io.IOException cannot be resolved. It is indirectly refere nced from required .class files The type java.io.Reader cannot be resolved. It is indirectly referenced from required .class files The type java.lang.Exception cannot be resolved. It is indirectly refere nced from required .class files The import java.io.Reader cannot be resolved The import java.util.HashMap cannot be resolved The import java.util.Iterator cannot be resolved The import java.util.List cannot be resolved The import java.util.Map cannot be resolved The import java.util.MissingResourceException cannot be resolved The import java.util.ResourceBundle cannot be resolved The hierarchy of the type DroolsEclipsePlugin is inconsistent String cannot be resolved to a type String cannot be resolved to a type String cannot be resolved to a type ResourceBundle cannot be resolved to a type Map cannot be resolved to a type HashMap cannot be resolved to a type Map cannot be resolved to a type HashMap cannot be resolved to a type Map cannot be resolved to a type HashMap cannot be resolved to a type Map cannot be resolved to a type HashMap cannot be resolved to a type Map cannot be resolved to a type HashMap cannot be resolved to a type Exception cannot be resolved to a type IDroolsConstants.CACHE_PARSED_RULES cannot be resolved The constructor Object() is undefined IDroolsConstants.CACHE_PARSED_RULES cannot be resolved The type java.lang.Boolean cannot be resolved. It is indirectly referenc ed from required .class files java.lang.Boolean cannot be resolved parsedRules cannot be resolved compiledRules cannot be resolved ruleInfoByClassNameMap cannot be resolved functionInfoByClassNameMap cannot be resolved Exception cannot be resolved to a type resourceBundle cannot be resolved parsedRules cannot be resolved compiledRules cannot be resolved Iterator cannot be resolved to a type colors cannot be resolved String cannot be resolved to a type String cannot be resolved to a type ResourceBundle cannot be resolved to a type The method getResourceBundle() is undefined for the type DroolsEclipsePl ugin MissingResourceException cannot be resolved to a type ResourceBundle cannot be resolved to a type resourceBundle cannot be resolved resourceBundle cannot be resolved ResourceBundle cannot be resolved MissingResourceException cannot be resolved to a type resourceBundle cannot be resolved resourceBundle cannot be resolved String cannot be resolved to a type String cannot be resolved to a type PLUGIN_ID cannot be resolved Throwable cannot be resolved to a type Throwable cannot be resolved to a type The method getUniqueIdentifier() is undefined for the type DroolsEclipse Plugin String cannot be resolved to a type colors cannot be resolved String cannot be resolved to a type colors cannot be resolved IDroolsConstants.BUILD_ALL cannot be resolved IDroolsConstants.EDITOR_FOLDING cannot be resolved IDroolsConstants.CACHE_PARSED_RULES cannot be resolved Cannot throw the type DroolsParserException compiledRules cannot be resolved parsedRules cannot be resolved Cannot throw the type DroolsParserException compiledRules cannot be resolved parsedRules cannot be resolved The type java.lang.Class cannot be resolved. It is indirectly referenced from required .class files The method getContent() is undefined for the type AbstractRuleEditor The method getContent() is undefined for the type AbstractRuleEditor String cannot be resolved to a type Cannot throw the type DroolsParserException compiledRules cannot be resolved String cannot be resolved to a type Cannot throw the type DroolsParserException compiledRules cannot be resolved compiledRules cannot be resolved ruleInfoByClassNameMap cannot be resolved The method getClassName() is undefined for the type DRLInfo.RuleInfo functionInfoByClassNameMap cannot be resolved The method getClassName() is undefined for the type DRLInfo.FunctionInfo parsedRules cannot be resolved Cannot throw the type DroolsParserException String cannot be resolved to a type Cannot throw the type DroolsParserException The type java.lang.Thread cannot be resolved. It is indirectly reference d from required .class files The type java.io.File cannot be resolved. It is indirectly referenced fr om required .class files The type java.net.URL cannot be resolved. It is indirectly referenced fr om required .class files String cannot be resolved to a type String cannot be resolved to a type The hierarchy of the type MyResourceVisitor is inconsistent Implicit super constructor Object() is undefined for default constructor . Must define an explicit constructor Cannot throw the type CoreException at org.drools.eclipse.DroolsEclipsePlugin.<init>(Unknown Source) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct orAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC onstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:494) at java.lang.Class.newInstance0(Class.java:350) at java.lang.Class.newInstance(Class.java:303) at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleAct ivator(AbstractBundle.java:136) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(Bund leContextImpl.java:962) at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(Bundl eHost.java:317) at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(Abstrac tBundle.java:256) at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java: 342) at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.preFindL ocalClass(EclipseLazyStarter.java:88) at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(C lasspathManager.java:412) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalCla ss(DefaultClassLoader.java:189) at org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass( BundleLoader.java:334) at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(Bundl eLoader.java:386) at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(Bundl eLoader.java:347) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(De faultClassLoader.java:83) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(Bundl eLoader.java:278) at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleH ost.java:227) at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(Abs tractBundle.java:1245) at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createEx ecutableExtension(RegistryStrategyOSGI.java:147) at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutable Extension(ExtensionRegistry.java:759) at org.eclipse.core.internal.registry.ConfigurationElement.createExecuta bleExtension(ConfigurationElement.java:243) at org.eclipse.core.internal.registry.ConfigurationElementHandle.createE xecutableExtension(ConfigurationElementHandle.java:51) at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:24 2) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67) at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlug in.java:238) at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode.createPage(Wo rkbenchPreferenceNode.java:46) at org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDi alog.java:1241) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(F ilteredPreferenceDialog.java:315) at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDial og.java:1134) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(Fil teredPreferenceDialog.java:438) at org.eclipse.jface.preference.PreferenceDialog$8.selectionChanged(Pref erenceDialog.java:661) at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.jav a:839) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.core.runtime.Platform.run(Platform.java:843) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:149) at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(S tructuredViewer.java:837) at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(Structure dViewer.java:1143) at org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(Structure dViewer.java:1163) at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrate gy.java:236) at org.eclipse.jface.util.OpenStrategy.access$4(OpenStrategy.java:230) at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:404) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.ja va:123) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3325) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2971) at org.eclipse.jface.window.Window.runEventLoop(Window.java:820) at org.eclipse.jface.window.Window.open(Window.java:796) at org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesActi on.java:65) at org.eclipse.jface.action.Action.runWithEvent(Action.java:499) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection (ActionContributionItem.java:539) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContri butionItem.java:488) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionC ontributionItem.java:400) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3348) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2968) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1930) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1894) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.jav a:422) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:95 ) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformAct ivator.java:78) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runAppli cation(EclipseAppLauncher.java:92) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(Ec lipseAppLauncher.java:68) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.ja va:400) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.ja va:177) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl. java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces sorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336) at org.eclipse.core.launcher.Main.basicRun(Main.java:280) at org.eclipse.core.launcher.Main.run(Main.java:977) at org.eclipse.core.launcher.Main.main(Main.java:952)