Bug 183918 get relative file path of linkage library
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/library/DesignLoadLibraryTest.java
assertEquals( "Library_1", lib.getNamespace( ) ); 
	}
	/**
	 * Returns an string array containing element names with the given element
	 * list.
	 * 
	 * @param list
	 *            a list containg elements
	 * @return an string array containing element names
	 * 
	 */
	private String[] getNameArray( List list )
	{
		assert list != null;
		String[] elementNames = new String[list.size( )];
		int i = 0;
		Iterator iter = list.iterator( );
		while ( iter.hasNext( ) )
		{
			DesignElementHandle element = (DesignElementHandle) iter.next( );
			elementNames[i++] = element.getName( );
		}
		return elementNames;
	}
	/**
	 * @param strings1
	 * @param strings2
	 */
	private void assertEquals( String[] strings1, String[] strings2 )
	{