GridServiceDescription<String> gs1 = wp.lookup( "s1" );
gs1.addAddress( "p1" ).setObject( "v1" );
gs1.addAddress( "p2" ).setObject( "v2" );
gs1 = wp.lookup( "s1" );
assertEquals( 2,
gs1.getAddresses().size() );
assertEquals( "v1",
gs1.getAddresses().get( "p1" ).getObject() );
assertEquals( "v2",