Bug 54595 Load User Libraries dialog has layout problems
Reached through Pref Page Java/Build Path/User Libraries/Load...
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/UserLibraryPreferencePage.java
FileDialog dialog= new FileDialog(getShell(), existing == null ? SWT.MULTI : SWT.SINGLE);
		dialog.setText(title);
		dialog.setFilterExtensions(new String[] {"*.jar;*.zip"}); 
		dialog.setFilterPath(lastUsedPath);
		if (existing != null) {
			dialog.setFileName(existing.getPath().lastSegment());
		}
		
		String res= dialog.open();
		if (res == null) {
			return null;
		}
		String[] fileNames= dialog.getFileNames();
		int nChosen= fileNames.length;
			
		IPath filterPath= new Path(dialog.getFilterPath());
		CPListElement[] elems= new CPListElement[nChosen];
		for (int i= 0; i < nChosen; i++) {
			IPath path= filterPath.append(fileNames[i]).makeAbsolute();	
			CPListElement curr= new CPListElement(parent, null, IClasspathEntry.CPE_LIBRARY, path, null);
			curr.setAttribute(CPListElement.SOURCEATTACHMENT, BuildPathSupport.guessSourceAttachment(curr));
			curr.setAttribute(CPListElement.JAVADOC, JavaUI.getLibraryJavadocLocation(curr.getPath()));
			elems[i]= curr;
		}
		fDialogSettings.put(IUIConstants.DIALOGSTORE_LASTEXTJAR, filterPath.toOSString());
		
		return elems;
	}
	
	private class UserLibraryAdapter implements ITreeListAdapter {