String message, String a1, String a2, String a3) {
      super(message);
    }

    public ExceptionWithManyConstructorsButOnlyOneThrowable(String message, Throwable antecedent) {
      super(message);
      this.antecedent = antecedent;
    }

    public ExceptionWithManyConstructorsButOnlyOneThrowable(
        String message, String a1, String a2, String a3, String a4) {
      super(message);
    }

        String message, String a1, String a2, String a3) {
      super(message);
    }

    public ExceptionWithManyConstructorsButOnlyOneThrowable(String message, Throwable antecedent) {
      super(message);
      this.antecedent = antecedent;
    }

    public ExceptionWithManyConstructorsButOnlyOneThrowable(
        String message, String a1, String a2, String a3, String a4) {
      super(message);
    }

    //
    // 1. Subscribers to events posted on different threads can be interleaved with each other
    //    freely. (A event on one thread, B event on another could yield any of
    //    [a1, a2, a3, b1, b2], [a1, b2, a2, a3, b2], [a1, b2, b3, a2, a3], etc.)
    // 2. It's possible for subscribers to actually be dispatched to in a different order than they
    //    were added to the queue. It's easily possible for one thread to take the head of the

    }

    @Test
    public void test_toLineString() {
        assertEquals("a1,a2,a3=>b1,b2,b3",
                new SynonymItem(1, new String[] { "a1", "a2", "a3" }, new String[] { "b1", "b2", "b3" }).toLineString());
        assertEquals("a=>b", new SynonymItem(1, new String[] { "a" }, new String[] { "b" }).toLineString());

        v1 = graph.addVertex(new ArtifactMetadata("g", "a1", "1.0"));
        graph.setEntry(v1);
        v2 = graph.addVertex(new ArtifactMetadata("g", "a2", "1.0"));
        v3 = graph.addVertex(new ArtifactMetadata("g", "a3", "1.0"));
        v4 = graph.addVertex(new ArtifactMetadata("g", "a4", "1.0"));

        // v1-->v2
        graph.addEdge(v1, v2, new MetadataGraphEdge("1.1", true, null, null, 2, 1));

// See issue 43661.

TEXT ·a1(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	MOVL $0, R15
	RET
TEXT ·a2(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	MOVQ $0, R15
	RET
TEXT ·a3(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	XORL R15, R15
	RET
TEXT ·a4(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	XORQ R15, R15
	RET
TEXT ·a5(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0

        v1 = graph.addVertex(new ArtifactMetadata("g", "a1", "1.0"));
        graph.setEntry(v1);
        v2 = graph.addVertex(new ArtifactMetadata("g", "a2", "1.0"));
        v3 = graph.addVertex(new ArtifactMetadata("g", "a3", "1.0"));
        v4 = graph.addVertex(new ArtifactMetadata("g", "a4", "1.0"));

        // v1-->v2
        graph.addEdge(v1, v2, new MetadataGraphEdge("1.1", true, null, null, 2, 1));