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
{
	private static final String MSG_OPEN_DEFINED_LIBRARY_ERROR_TITLE = Messages.getString( "LibraryProvider.openDefinedLibrary.error.dialog.title" ); 
	private static final String MSG_OPEN_DEFINED_LIBRARY_ERROR_MSG = Messages.getString( "LibraryProvider.openDefinedLibrary.error.dialog.message" ); 
	private static final LibraryHandle[] empty = new LibraryHandle[0];
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.designer.internal.ui.views.lib.ILibraryProvider#getLibrarys()
	 */
	public LibraryHandle[] getLibraries( )
	{
		File inputFolder = getInputForlder( );
		if ( inputFolder != null )
		{
			Set libSet = new LinkedHashSet( );
			libSet.addAll( getFolderLibraries( inputFolder ) );
			String[] predefinedLibrarys = ReportPlugin.getDefault( )
					.getLibraryPreference( );
			for ( int i = 0; i < predefinedLibrarys.length; i++ )
			{
				try
				{
					LibraryHandle handle = SessionHandleAdapter.getInstance( )
							.getSessionHandle( )
							.openLibrary( predefinedLibrarys[i] );