Javadoc in external Window

Latest Eclipse for win64, using builtin JRE

For this builtin jre I have set the javadoc location to al local zip file.


I can display the javadoc contents inside of eclipse. But when I select "show in external window" this error is logged:

`!ENTRY org.eclipse.help.base 4 0 2025-02-26 10:37:33.552
!MESSAGE An exception occurred while launching help. Check the log at P:\Eclipse\Workspace\.metadata\.log
!STACK 0
java.net.MalformedURLException: no protocol: /jar:file:/P:/Java/jdk-21.0.4_doc-all.zip!/docs/api/java.base/java/util/ArrayList.html
at java.base/java.net.URL.(URL.java:772)
at java.base/java.net.URL.(URL.java:654)
at java.base/java.net.URL.(URL.java:590)
at org.eclipse.help.ui.internal.DefaultHelpUI$ExternalWorkbenchBrowser.displayURL(DefaultHelpUI.java:98)
at org.eclipse.help.internal.base.HelpDisplay.displayHelpURL(HelpDisplay.java:202)
at org.eclipse.help.internal.base.HelpDisplay.displayHelpResource(HelpDisplay.java:107)
at org.eclipse.help.ui.internal.DefaultHelpUI.displayHelpResource(DefaultHelpUI.java:290)
at org.eclipse.ui.internal.help.WorkbenchHelpSystem.displayHelpResource(WorkbenchHelpSystem.java:735)
at org.eclipse.help.ui.internal.views.ReusableHelpPart.showExternalURL(ReusableHelpPart.java:1346)
at org.eclipse.help.ui.internal.views.BrowserPart$3.lambda$0(BrowserPart.java:217)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at org.eclipse.help.ui.internal.views.BrowserPart$3.run(BrowserPart.java:215)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:474)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:581)
at org.eclipse.jface.action.ActionContributionItem.lambda$5(ActionContributionItem.java:454)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:91)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4404)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1173)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4202)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3790)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1151)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1042)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:663)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:570)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:178)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:143)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:109)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:439)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:271)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:668)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:605)
at org.eclipse.equinox.launcher.Main.run(Main.java:1481)
`