@Override
    public void artifactInstalling(RepositoryEvent event) {
        logger.info("Installing {} to {}", event.getArtifact().getFile(), event.getFile());
    }

    @Override
    public void metadataInstalling(RepositoryEvent event) {
        logger.debug("Installing {} to {}", event.getMetadata(), event.getFile());
    }

    @Override
    public void metadataResolved(RepositoryEvent event) {

    assertEquals(6, getDone(transformedFuture).intValue());

    // Repeated calls yield the same value even though the function's behavior
    // changes
    holder.value = 3;
    assertEquals(6, getDone(transformedFuture).intValue());
    assertEquals(7, adder.apply(4).intValue());

    // Once more, with feeling.
    holder.value = 4;
    assertEquals(6, getDone(transformedFuture).intValue());

    assertEquals(6, getDone(transformedFuture).intValue());

    // Repeated calls yield the same value even though the function's behavior
    // changes
    holder.value = 3;
    assertEquals(6, getDone(transformedFuture).intValue());
    assertEquals(7, adder.apply(4).intValue());

    // Once more, with feeling.
    holder.value = 4;
    assertEquals(6, getDone(transformedFuture).intValue());

        }
    }

    private static boolean hasGroovyPropertyRequests(List<CallInterceptionRequest> requests) {
        return requests.stream().anyMatch(it -> it.getInterceptedCallable().getKind() == GROOVY_PROPERTY_GETTER || it.getInterceptedCallable().getKind() == GROOVY_PROPERTY_SETTER);
    }

    @SuppressWarnings("ReturnValueIgnored")
    private static CodeBlock interceptorClassJavadoc(Collection<CallInterceptionRequest> requests) {

        wagonManager.getArtifact(artifact, repo, null, false);

        assertTrue(artifact.getFile().exists());
        assertEquals("expected", FileUtils.fileRead(artifact.getFile(), "UTF-8"));
    }

    private Artifact createTestPomArtifact(String directory) throws IOException {
        File testData = getTestFile(directory);

              return function.apply(
                  closer,
                  peeker.getDone(future1),
                  peeker.getDone(future2),
                  peeker.getDone(future3),
                  peeker.getDone(future4),
                  peeker.getDone(future5));
            }

            @Override
            public String toString() {

    val stream2 = connection.newStream(headerEntries("b", "banana"), true)
    connection.writePingAndAwaitPong() // Ensure the GO_AWAY that resets stream2 has been received.
    val sink1 = stream1.getSink().buffer()
    val sink2 = stream2.getSink().buffer()
    sink1.writeUtf8("abc")
    assertFailsWith<IOException> {
      sink2.writeUtf8("abc")
      sink2.flush()
    }.also { expected ->

    @VisibleForTesting
    void buildProblem(Diagnostic<? extends JavaFileObject> diagnostic, ProblemSpec spec) {
        spec.id(mapKindToId(diagnostic.getKind()), mapKindToLabel(diagnostic.getKind()), GradleCoreProblemGroup.compilation().java());
        spec.severity(mapKindToSeverity(diagnostic.getKind()));
        addFormattedMessage(spec, diagnostic);
        addDetails(spec, diagnostic);
        addLocations(spec, diagnostic);
    }

            for (MavenProject project : session.getMavenSession().getAllProjects()) {
                if (id.equals(id(project.getArtifact()))
                        && project.getArtifact().getFile() != null) {
                    return Optional.of(project.getArtifact().getFile().toPath());
                }
            }
        }
        Path path = paths.get(id);
        if (path == null && artifact instanceof DefaultArtifact) {

    private final Kind kind;
    private final int index;

    NestedExceptionPlaceholder(Kind kind, int index) {
        this.kind = kind;
        this.index = index;
    }

    public Kind getKind() {
        return kind;
    }

    public int getIndex() {
        return index;
    }

    enum Kind {
        cause,
        suppressed
    }