MojoExecutionScope scope = new MojoExecutionScope();

        scope.enter();

        Object o1 = new Object();
        scope.seed(Object.class, o1);
        assertSame(o1, scope.scope(Key.get(Object.class), null).get());

        scope.enter();
        Object o2 = new Object();
        scope.seed(Object.class, o2);
        assertSame(o2, scope.scope(Key.get(Object.class), null).get());

        scope.exit();

        }
        stack.removeFirst();
        if (stack.isEmpty()) {
            values.remove();
        }
    }

    public <T> void seed(Class<T> clazz, Provider<T> value) {
        getScopeState().seeded.put(Key.get(clazz), value);
    }

    public <T> void seed(Class<T> clazz, final T value) {
        getScopeState().seeded.put(Key.get(clazz), Providers.of(value));
    }

            throw new IllegalStateException();
        }
        values.remove(0);
    }

    public <T> void seed(Class<T> clazz, Provider<T> value) {
        getScopeState().seed(clazz, value);
    }

    public <T> void seed(Class<T> clazz, final T value) {
        seed(clazz, (Provider<T>) () -> value);
    }

    public <T> Provider<T> scope(final Key<T> key, final Provider<T> unscoped) {

        assertNotSame(bean.myBean.getClass(), MySessionScopedBean.class);

        assertThrows(OutOfScopeException.class, () -> bean.myBean.getSession());

        sessionScope.enter();
        sessionScope.seed(Session.class, this.session);
        assertNotNull(bean.myBean.getSession());
        assertNotNull(bean.myBean.getAnotherBean());
        assertSame(bean.myBean.getAnotherBean().getClass(), AnotherBean.class);

    protected String component() {
        return "deployer";
    }

    @Test
    void testArtifactInstallation() throws Exception {
        sessionScope.enter();
        try {
            sessionScope.seed(MavenSession.class, mock(MavenSession.class));

            String artifactBasedir = new File(getBasedir(), "src/test/resources/artifact-install").getAbsolutePath();

    protected String component() {
        return "installer";
    }

    @Test
    void testArtifactInstallation() throws Exception {
        sessionScope.enter();
        try {
            sessionScope.seed(MavenSession.class, mock(MavenSession.class));

            String artifactBasedir = new File(getBasedir(), "src/test/resources/artifact-install").getAbsolutePath();

     * @param columnNumber The one-based index of the column containing the error or {@code -1} if unknown.
     * @param exception The exception that caused this problem, may be {@code null}.
     */
    // mkleint: does this need to be public?
    public DefaultModelProblem(
            String message,
            Severity severity,
            Version version,
            Model source,
            int lineNumber,
            int columnNumber,

    //
    // These are the only methods we need in our primordial logger
    //
    public void error(String msg) {
        out.print(ERROR);
        out.println(msg);
    }

    public void error(String msg, Throwable t) {
        error(msg);

        if (null != t) {
            t.printStackTrace(out);
        }
    }

    //
    // Don't need any of this
    //
    public String getName() {

        // wait for all thread to end
        try {
            endLatch.await();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        // despite all are back, we need to make sure all the events are processed (are async)
        // this one should block until all processed
        listener.transferSucceeded(new TransferEvent.Builder(session, resource)

        // Alright, here's the justification for all the regexp wizardry below...
        //
        // Continuum and other server-like apps may need to locate the user-level and
        // global-level settings somewhere other than ${user.home} and ${maven.home},
        // respectively. Using a simple replacement of these patterns will allow them