Bug 57283 JavaDocExport: if destination path has spaces, the JavaDoc is generated into the incorrect (truncated) path or fails [javadoc]
Steps to reproduce (Eclipse3.0M8): Create a project with any name; Create some classes there; Execute Export->Javadoc. In the wizard, in the destination editbox, type any name that contains spaces. If the spaces are only in the last segment of the path (say, c:\tmp\my project), the javadoc is just generated in the incorrect (truncated) location (in this example, c:\tmp\my). If there are spaces before the last segment (e.g., c:\Documents and Settings\user\My Documents\my project), generation only produces 2 empty folders (in this example, C:\Documents and the destination that was typed) and fails to do anything else.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javadocexport/JavadocOptionsManager.java
String packagenames= element.getAttribute(PACKAGENAMES);
		if (packagenames != null) {
			IContainer[] containers= getSourceContainers(element);
			
			StringTokenizer tokenizer= new StringTokenizer(packagenames, ","); 
			while (tokenizer.hasMoreTokens()) {
				IPath relPackagePath= new Path(tokenizer.nextToken().trim().replace('.', '/'));
				for (int i= 0; i < containers.length; i++) {
					IContainer curr= containers[i];
					IResource resource= curr.findMember(relPackagePath);
					if (resource != null) {
						IJavaElement javaElem= JavaCore.create(resource);
						if (javaElem instanceof IPackageFragment) {
							res.add(javaElem);
						}
					}
				}
			}
		}
		
		String sourcefiles= element.getAttribute(SOURCEFILES);
		if (sourcefiles != null) {
			IWorkspaceRoot root= ResourcesPlugin.getWorkspace().getRoot();
			
			StringTokenizer tokenizer= new StringTokenizer(sourcefiles, ","); 
			while (tokenizer.hasMoreTokens()) {
				String name= tokenizer.nextToken().trim();
				if (name.endsWith(".java")) { 
					IPath path= makeAbsolutePathFromRelative(name);