code: @Test public void testSingleAttributeUpdate() throws Exception {
    internalTestSingleAttributeUpdate(new Callback(){
      @Override public void setAttribute(    ServerConfig sc) throws Exception {
        sc.setModifySOAPAddress(true);
      }
    }
  );
    internalTestSingleAttributeUpdate(new Callback(){
      @Override public void setAttribute(    ServerConfig sc) throws Exception {
        sc.setWebServiceHost("foo");
      }
    }
  );
    internalTestSingleAttributeUpdate(new Callback(){
      @Override public void setAttribute(    ServerConfig sc) throws Exception {
        sc.setWebServicePort(976);
      }
    }
  );
    internalTestSingleAttributeUpdate(new Callback(){
      @Override public void setAttribute(    ServerConfig sc) throws Exception {
        sc.setWebServiceSecurePort(5435);
      }
    }
  );
    internalTestSingleAttributeUpdate(new Callback(){
      @Override public void setAttribute(    ServerConfig sc) throws Exception {
        sc.setWebServicePathRewriteRule("MY/TEST/PATH");
      }
    }
  );
  }
  