[rules-users] Drools Eclipse Plugin Problem

Wed Apr 2 17:04:27 EDT 2008

There was poor QA on the last two releases by the release engineer. I 
will personally over see the next release and make sure this is all fixed.

Sorry

Mark
Seema Richard wrote:
> 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)
>
>   