Bug 11814 OpenExternalJavadoc action should not call findElement on JAR
This causes an exception: Java Model Exception: Java Model Status [Invalid path: C:/Java/IBM1.3/jre/lib/rt.jar.] at org.eclipse.jdt.internal.core.JavaProject.findElement(JavaProject.java:435) at org.eclipse.jdt.internal.ui.actions.OpenExternalJavadocAction.run(OpenExternalJavadocAction.java:102) at org.eclipse.ui.texteditor.RetargetTextEditorAction.run(RetargetTextEditorAction.java:103) at org.eclipse.jface.action.Action.runWithEvent(Action.java:473) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:407) at org.eclipse.jface.action.ActionContributionItem.handleWidgetEvent(ActionContributionItem.java(Compiled Code)) at org.eclipse.jface.action.ActionContributionItem$ActionListener.handleEvent(ActionContributionItem.java(Compiled Code)) at org.eclipse.jface.action.ActionContributionItem$ActionListener.handleEvent(ActionContributionItem.java(Compiled Code)) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java(Compiled Code)) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java(Compiled Code)) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java(Compiled Code)) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java(Compiled Code)) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java(Compiled Code)) at org.eclipse.ui.internal.Workbench.run(Workbench.java:698) at org.eclipse.core.internal.boot.InternalBootLoader.run(InternalBootLoader.java:777) at org.eclipse.core.boot.BootLoader.run(BootLoader.java:319) at java.lang.reflect.Method.invoke(Native Method) at org.eclipse.core.launcher.Main.basicRun(Main.java:196) at org.eclipse.core.launcher.Main.run(Main.java:555) at org.eclipse.core.launcher.UIMain.main(UIMain.java:52) 4 org.eclipse.jdt.core 979 Invalid path: C:/Java/IBM1.3/jre/lib/rt.jar.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/BuildPathsBlock.java
private List getDefaultClassPath(IJavaProject jproj) {
		List list= new ArrayList();
		IResource srcFolder;
		if (JavaBasePreferencePage.useSrcAndBinFolders()) {
			String sourceFolderName= JavaBasePreferencePage.getSourceFolderName();
			srcFolder= jproj.getProject().getFolder(sourceFolderName);
		} else {
			srcFolder= jproj.getProject();
		}
		list.add(new CPListElement(IClasspathEntry.CPE_SOURCE, srcFolder.getFullPath(), srcFolder));
		IPath libPath= new Path(JavaRuntime.JRELIB_VARIABLE);
		IPath attachPath= new Path(JavaRuntime.JRESRC_VARIABLE);
		IPath attachRoot= new Path(JavaRuntime.JRESRCROOT_VARIABLE);
		CPListElement elem= new CPListElement(IClasspathEntry.CPE_VARIABLE, libPath, null, attachPath, attachRoot, false);
		list.add(elem);
		return list;
	}
	
	private IPath getDefaultBuildPath(IJavaProject jproj) {
		if (JavaBasePreferencePage.useSrcAndBinFolders()) {
			String outputLocationName= JavaBasePreferencePage.getOutputLocationName();
			return jproj.getProject().getFullPath().append(outputLocationName);
		} else {
			return jproj.getProject().getFullPath();
		}
	}	
		
	private class BuildPathAdapter implements IStringButtonAdapter, IDialogFieldListener {