Thread.currentThread().setContextClassLoader(classReloader);
    abstractFutureClass = classReloader.loadClass(AbstractFuture.class.getName());
    settableFutureClass = classReloader.loadClass(SettableFuture.class.getName());
  }

  @Override
  protected void tearDown() throws Exception {
    classReloader.close();
    Thread.currentThread().setContextClassLoader(oldClassLoader);

    try {
      Thread.currentThread().setContextClassLoader(loader);
      URL url = Resources.getResource(tempFile.getName());
      String text = Resources.toString(url, UTF_8);
      assertEquals("rud a chur ar an méar fhada" + System.lineSeparator(), text);
    } finally {
      Thread.currentThread().setContextClassLoader(oldContextLoader);
    }
  }

            throw new PluginExecutionException(mojoExecution, project, e);
        }

        ClassLoader oldClassLoader = Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader(pluginRealm);

        MavenSession oldSession = legacySupport.getSession();

        scope.enter();

        try {
            scope.seed(MavenProject.class, project);

                        mojo.setRealm(pluginRealm);
                        container.addComponentDescriptor(mojo);
                    }
                }
            }

            Thread.currentThread().setContextClassLoader(pluginRealm);
            ((DefaultPlexusContainer) container)
                    .discoverComponents(
                            pluginRealm,

                if (context.containerCapsule != null
                        && context.containerCapsule.currentThreadClassLoader().isPresent()) {
                    Thread.currentThread()
                            .setContextClassLoader(context.containerCapsule
                                    .currentThreadClassLoader()
                                    .get());
                }
                return doInvoke(context);

                    e.initCause(error);
                    throw e;
                }

                return result;
            } finally {
                Thread.currentThread().setContextClassLoader(oldContextClassLoader);
            }
        }

        ProjectBuildingResult build(
                boolean parent, Artifact artifact, boolean allowStubModel, List<ArtifactRepository> repositories)

        }

        final CoreExports exports = new CoreExports(containerRealm, exportedArtifacts, exportedPackages);

        Thread.currentThread().setContextClassLoader(containerRealm);

        DefaultPlexusContainer container = new DefaultPlexusContainer(cc, new AbstractModule() {
            @Override
            protected void configure() {

    public static void attachToThread(MavenProject currentProject) {
        ClassRealm projectRealm = currentProject.getClassRealm();
        if (projectRealm != null) {
            Thread.currentThread().setContextClassLoader(projectRealm);
        }
    }

    protected static class Clock {
        Instant start;
        Instant end;
        Instant resumed;
        Duration exec = Duration.ZERO;

    return new AdjustablePolicy
    // Permissions j.u.c. needs directly
    (
        new RuntimePermission("modifyThread"),
        new RuntimePermission("getClassLoader"),
        new RuntimePermission("setContextClassLoader"),
        // Permissions needed to change permissions!
        new SecurityPermission("getPolicy"),
        new SecurityPermission("setPolicy"),
        new RuntimePermission("setSecurityManager"),