Bug 53201 NPE when re-running newly generated javadoc.xml
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javadocexport/JavadocOptionsManager.java
fAdditionalParams= ""; 
		fOverview= ""; 
		fUse= true;
		fAuthor= true;
		fVersion= true;
		fNodeprecated= false;
		fNoDeprecatedlist= false;
		fNonavbar= false;
		fNoindex= false;
		fNotree= false;
		fSplitindex= true;
		fOpenInBrowser= false;
		fJDK14Mode= false;
		
		fFromStandard= true;
	}
	private void loadFromXML(Element element) {
		fAccess= element.getAttribute(VISIBILITY);
		if (fAccess.length() == 0)
			fAccess= PROTECTED;
		
		String destination= element.getAttribute(DESTINATION);
		fDestination= makeAbsolutePathFromRelative(destination).toOSString();
		fFromStandard= true;
		fDocletname= ""; 
		fDocletpath= ""; 
		if (destination.length() == 0) { 
			NodeList list= element.getChildNodes();
			for (int i= 0; i < list.getLength(); i++) {
				Node child= list.item(i);