for i, testCase := range testCases {
		result := testCase.set.Clone()

		if !reflect.DeepEqual(result, testCase.set) {
			t.Fatalf("test %v: result: expected: %v, got: %v", i+1, testCase.set, result)
		}

		result.add(testCase.targetIDToAdd)
		if reflect.DeepEqual(result, testCase.set) {
			t.Fatalf("test %v: result: expected: not equal, got: equal", i+1)
		}
	}
}

func TestTargetIDSetUnion(t *testing.T) {

	}
	defer l.Close()
	serverAddr := l.Addr().String()

	tcpListener, ok := l.(*net.TCPListener)
	if !ok {
		t.Fatalf("failed to assert to net.TCPListener")
	}

	var wg sync.WaitGroup
	wg.Add(1)
	go func() {
		defer wg.Done()

		tcpConn, terr := tcpListener.AcceptTCP()
		if terr != nil {
			t.Errorf("failed to accept new connection. %v", terr)
			return
		}
		deadlineconn := New(tcpConn)

                    if (managedPlugin != null) {
                        element = mergePlugin(element, managedPlugin, false, context);
                    }
                    newPlugins.add(element);
                }
                return target.withPlugins(newPlugins);
            }
            return target;
        }

        @Override
        protected void mergePlugin_Executions(

    /**
     * does this Mojo need to be online to be executed?
     * @return need to be online
     */
    boolean onlineRequired() default false;

    /**
     * TODO: v4: add a SPI for the configurator
     * configurator bean name.
     * @return the configurator bean name
     */
    @Nonnull
    String configurator() default "";

    /**

        List<MavenProject> filtered = new ArrayList<>(projects.size());
        for (MavenProject project : projects) {
            if (whiteList.containsKey(project)) {
                filtered.add(project);
            } else if (!transitive) {
                filtered.addAll(upstream ? getUpstreamProjects(project, false) : getDownstreamProjects(project, false));
            }
        }
        return filtered;

    }

    public static class HpSpecification {
        protected List<String> columnList = new ArrayList<>();

        public void doColumn(String name) {
            columnList.add(name);
        }

        public void columnId() {
            doColumn("_id");
        }

        public void columnCreatedBy() {
            doColumn("createdBy");
        }

    }

    public static class HpSpecification {
        protected List<String> columnList = new ArrayList<>();

        public void doColumn(String name) {
            columnList.add(name);
        }

        public void columnId() {
            doColumn("_id");
        }

        public void columnBoost() {
            doColumn("boost");
        }

    }

    public static class HpSpecification {
        protected List<String> columnList = new ArrayList<>();

        public void doColumn(String name) {
            columnList.add(name);
        }

        public void columnId() {
            doColumn("_id");
        }

        public void columnCreatedBy() {
            doColumn("createdBy");
        }

fun Request.Builder.commonHeader(
  name: String,
  value: String,
) = apply {
  headers[name] = value
}

fun Request.Builder.commonAddHeader(
  name: String,
  value: String,
) = apply {
  headers.add(name, value)
}

fun Request.Builder.commonRemoveHeader(name: String) =
  apply {
    headers.removeAll(name)
  }

fun Request.Builder.commonHeaders(headers: Headers) =
  apply {

  }

  private void joinHelper(Integer... spans) throws Exception {
    List<ByteSource> sources = Lists.newArrayList();
    int start = 0;
    for (Integer span : spans) {
      sources.add(newByteSource(start, span));
      start += span;
    }
    ByteSource joined = ByteSource.concat(sources);
    assertTrue(newByteSource(0, start).contentEquals(joined));
  }