Bug 136256 Enhance the message builder
Please see the spec attached in 133995 for detail.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/internal/ui/editors/LibraryProvider.java
try
				{
					handle = SessionHandleAdapter.getInstance( )
							.getSessionHandle( )
							.openLibrary( lib.getAbsolutePath( ) );
				}
				catch ( Exception e )
				{
					continue;
				}
				if ( !isLibExist( libList, handle ) )
					libList.add( handle );
			}
			else
			{
				libList.addAll( getFolderLibraries( lib ) );
			}
		}
		return libList;
	}
	private File getInputForlder( )
	{
		IEditorPart editor = UIUtil.getActiveEditor( true );
		if ( editor != null )
		{
			IEditorInput input = editor.getEditorInput( );
			if ( input instanceof IPathEditorInput )
			{
				return ( (IPathEditorInput) input ).getPath( )
						.toFile( )