Bug 12188 Wrong Stylesheet Flag for Javadoc + impossible to deaktivate selection
javadoc: invalid flag: -stylsheet shouldbe: javadoc -stylesheetfile And it's im possible to deactivate the selecting of using the external Stylesheet.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javadocexport/JavadocOptionsManager.java
IStructuredSelection selection= getValidSelection(sel);
		fPackages= selection.toList();
		fAccess= PRIVATE;
		
		if (fProject == null) {
			fAntpath= "";
		} else {
			IPath path= fProject.getProject().getLocation().addTrailingSeparator();
			fAntpath= path.append("javadoc.xml").toOSString();
		}
		
		fFromStandard= true;
		if (fProject != null) {
			URL url= JavaDocLocations.getProjectJavadocLocation(fProject);
			if (url != null && url.getProtocol().equals("file")) {
				File file= new File(url.getFile());
				IPath tpath= new Path(file.getPath());
				fDestination= tpath.toOSString();
			} else {
				fDestination= fProject.getProject().getLocation().addTrailingSeparator().append("doc").toOSString();
			}
		} else
			fDestination= "";
		
		fDocletname="";
		fDocletpath="";
		fTitle= "";
		fStylesheet= "";
		fAdditionalParams= "";
		fOverview= "";