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I am new to Eclipse and fairly new to JAVA developemnt. When I try to access the Help facility, I receive the following message. Help cannot be displayed. The embedded applicatioin server could not run the web application. Check the log file for details. I am attaching the log. !SESSION Dec 26, 2004 09:58:11.656 --------------------------------------------- eclipse.buildId=M200409161125 java.version=1.4.2_06 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US !ENTRY org.eclipse.tomcat 4 0 Dec 26, 2004 09:58:11.671 !MESSAGE Exception occurred starting application server. !STACK 0 org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log at org.apache.commons.logging.impl.LogFactoryImpl.newInstance (LogFactoryImpl.java:532) at org.apache.commons.logging.impl.LogFactoryImpl.getInstance (LogFactoryImpl.java:272) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:414) at org.apache.commons.digester.Digester.<init>(Digester.java:346) at org.apache.catalina.realm.MemoryRealm.getDigester (MemoryRealm.java:278) at org.apache.catalina.realm.MemoryRealm.start(MemoryRealm.java:348) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1173) at org.apache.catalina.core.StandardEngine.start (StandardEngine.java:363) at org.apache.catalina.startup.Embedded.addEngine(Embedded.java:464) at org.eclipse.tomcat.internal.TomcatAppServer.start (TomcatAppServer.java:97) at org.eclipse.help.internal.appserver.AppserverPlugin.startWebappServer (AppserverPlugin.java:145) at org.eclipse.help.internal.appserver.AppserverPlugin.getAppServer (AppserverPlugin.java:42) at org.eclipse.help.internal.appserver.WebappManager.start (WebappManager.java:57) at org.eclipse.help.internal.base.BaseHelpSystem.ensureWebappRunning (BaseHelpSystem.java:182) at org.eclipse.help.internal.base.HelpDisplay.displayHelpURL (HelpDisplay.java:156) at org.eclipse.help.internal.base.HelpDisplay.displayHelp (HelpDisplay.java:48) at org.eclipse.help.ui.internal.DefaultHelpUI.displayHelp (DefaultHelpUI.java:43) at org.eclipse.ui.help.WorkbenchHelp.displayHelp(WorkbenchHelp.java:210) at org.eclipse.ui.internal.actions.HelpContentsAction$1.run (HelpContentsAction.java:78) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69) at org.eclipse.ui.internal.actions.HelpContentsAction.run (HelpContentsAction.java:76) at org.eclipse.jface.action.Action.runWithEvent(Action.java:881) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection (ActionContributionItem.java:915) at org.eclipse.jface.action.ActionContributionItem.access$2 (ActionContributionItem.java:866) at org.eclipse.jface.action.ActionContributionItem$7.handleEvent (ActionContributionItem.java:785) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2772) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2431) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1377) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1348) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench (Workbench.java:254) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:141) at org.eclipse.ui.internal.ide.IDEApplication.run (IDEApplication.java:96) at org.eclipse.core.internal.runtime.PlatformActivator$1.run (PlatformActivator.java:335) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:273) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:129) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.eclipse.core.launcher.Main.basicRun(Main.java:185) at org.eclipse.core.launcher.Main.run(Main.java:704) at org.eclipse.core.launcher.Main.main(Main.java:688) Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor (LogFactoryImpl.java:416) at org.apache.commons.logging.impl.LogFactoryImpl.newInstance (LogFactoryImpl.java:525) ... 43 more Caused by: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor (LogFactoryImpl.java:412) ... 44 more !ENTRY org.eclipse.help.base 4 0 Dec 26, 2004 09:58:11.687 !MESSAGE Help cannot be displayed. The embedded application server could not run help web application. Check the log for details. !STACK 1 org.eclipse.core.runtime.CoreException[0]: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log at org.apache.commons.logging.impl.LogFactoryImpl.newInstance (LogFactoryImpl.java:532) at org.apache.commons.logging.impl.LogFactoryImpl.getInstance (LogFactoryImpl.java:272) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:414) at org.apache.commons.digester.Digester.<init>(Digester.java:346) at org.apache.catalina.realm.MemoryRealm.getDigester (MemoryRealm.java:278) at org.apache.catalina.realm.MemoryRealm.start(MemoryRealm.java:348) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1173) at org.apache.catalina.core.StandardEngine.start (StandardEngine.java:363) at org.apache.catalina.startup.Embedded.addEngine(Embedded.java:464) at org.eclipse.tomcat.internal.TomcatAppServer.start (TomcatAppServer.java:97) at org.eclipse.help.internal.appserver.AppserverPlugin.startWebappServer (AppserverPlugin.java:145) at org.eclipse.help.internal.appserver.AppserverPlugin.getAppServer (AppserverPlugin.java:42) at org.eclipse.help.internal.appserver.WebappManager.start (WebappManager.java:57) at org.eclipse.help.internal.base.BaseHelpSystem.ensureWebappRunning (BaseHelpSystem.java:182) at org.eclipse.help.internal.base.HelpDisplay.displayHelpURL (HelpDisplay.java:156) at org.eclipse.help.internal.base.HelpDisplay.displayHelp (HelpDisplay.java:48) at org.eclipse.help.ui.internal.DefaultHelpUI.displayHelp (DefaultHelpUI.java:43) at org.eclipse.ui.help.WorkbenchHelp.displayHelp(WorkbenchHelp.java:210) at org.eclipse.ui.internal.actions.HelpContentsAction$1.run (HelpContentsAction.java:78) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69) at org.eclipse.ui.internal.actions.HelpContentsAction.run (HelpContentsAction.java:76) at org.eclipse.jface.action.Action.runWithEvent(Action.java:881) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection (ActionContributionItem.java:915) at org.eclipse.jface.action.ActionContributionItem.access$2 (ActionContributionItem.java:866) at org.eclipse.jface.action.ActionContributionItem$7.handleEvent (ActionContributionItem.java:785) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2772) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2431) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1377) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1348) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench (Workbench.java:254) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:141) at org.eclipse.ui.internal.ide.IDEApplication.run (IDEApplication.java:96) at org.eclipse.core.internal.runtime.PlatformActivator$1.run (PlatformActivator.java:335) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:273) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:129) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.eclipse.core.launcher.Main.basicRun(Main.java:185) at org.eclipse.core.launcher.Main.run(Main.java:704) at org.eclipse.core.launcher.Main.main(Main.java:688) Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor (LogFactoryImpl.java:416) at org.apache.commons.logging.impl.LogFactoryImpl.newInstance (LogFactoryImpl.java:525) ... 43 more Caused by: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor (LogFactoryImpl.java:412) ... 44 more !SUBENTRY 1 org.eclipse.tomcat 4 0 Dec 26, 2004 09:58:11.687 !MESSAGE Exception occurred starting application server. !STACK 0 org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log at org.apache.commons.logging.impl.LogFactoryImpl.newInstance (LogFactoryImpl.java:532) at org.apache.commons.logging.impl.LogFactoryImpl.getInstance (LogFactoryImpl.java:272) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:414) at org.apache.commons.digester.Digester.<init>(Digester.java:346) at org.apache.catalina.realm.MemoryRealm.getDigester (MemoryRealm.java:278) at org.apache.catalina.realm.MemoryRealm.start(MemoryRealm.java:348) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1173) at org.apache.catalina.core.StandardEngine.start (StandardEngine.java:363) at org.apache.catalina.startup.Embedded.addEngine(Embedded.java:464) at org.eclipse.tomcat.internal.TomcatAppServer.start (TomcatAppServer.java:97) at org.eclipse.help.internal.appserver.AppserverPlugin.startWebappServer (AppserverPlugin.java:145) at org.eclipse.help.internal.appserver.AppserverPlugin.getAppServer (AppserverPlugin.java:42) at org.eclipse.help.internal.appserver.WebappManager.start (WebappManager.java:57) at org.eclipse.help.internal.base.BaseHelpSystem.ensureWebappRunning (BaseHelpSystem.java:182) at org.eclipse.help.internal.base.HelpDisplay.displayHelpURL (HelpDisplay.java:156) at org.eclipse.help.internal.base.HelpDisplay.displayHelp (HelpDisplay.java:48) at org.eclipse.help.ui.internal.DefaultHelpUI.displayHelp (DefaultHelpUI.java:43) at org.eclipse.ui.help.WorkbenchHelp.displayHelp(WorkbenchHelp.java:210) at org.eclipse.ui.internal.actions.HelpContentsAction$1.run (HelpContentsAction.java:78) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69) at org.eclipse.ui.internal.actions.HelpContentsAction.run (HelpContentsAction.java:76) at org.eclipse.jface.action.Action.runWithEvent(Action.java:881) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection (ActionContributionItem.java:915) at org.eclipse.jface.action.ActionContributionItem.access$2 (ActionContributionItem.java:866) at org.eclipse.jface.action.ActionContributionItem$7.handleEvent (ActionContributionItem.java:785) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2772) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2431) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1377) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1348) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench (Workbench.java:254) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:141) at org.eclipse.ui.internal.ide.IDEApplication.run (IDEApplication.java:96) at org.eclipse.core.internal.runtime.PlatformActivator$1.run (PlatformActivator.java:335) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:273) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:129) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.eclipse.core.launcher.Main.basicRun(Main.java:185) at org.eclipse.core.launcher.Main.run(Main.java:704) at org.eclipse.core.launcher.Main.main(Main.java:688) Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor (LogFactoryImpl.java:416) at org.apache.commons.logging.impl.LogFactoryImpl.newInstance (LogFactoryImpl.java:525) ... 43 more Caused by: org.apache.commons.logging.LogConfigurationException: Class org.apache.commons.logging.impl.Log4JLogger does not implement Log at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor (LogFactoryImpl.java:412) ... 44 more !ENTRY org.eclipse.help.ui 4 0 Dec 26, 2004 09:58:15.187 !MESSAGE Help cannot be displayed. The embedded application server could not run help web application. Check the log for details.
This is probably the same issue as described in the readme: Help browser displays a blank page If you see a help launched with a blank page, and no errors displayed, it can be caused by a conflict between libraries in org.eclipse.tomcat plug-in and jars optionally installed in JRE jre/lib/ext directory. To fix the problem, ensure that the JRE used for running Eclipse does not contain any J2EE or Apache jars in the jre/lib/ext directory. (bug 63970) Let us know if running with clean jre solves the problem.
No response. Closing.
