@Test
public void testIsSupportedKey() throws Exception {

  ResourceKey key = new ResourceKey( "", "", null );
  rrl.load( key );
  assertFalse( rrl.isSupportedKey( key ) );
  key = new ResourceKey( rrl.SOLUTION_SCHEMA_NAME, "", null );
  rrl.load( key );
  assertTrue( rrl.isSupportedKey( key ) );
}