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

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

                    e.initCause(error);
                    throw e;
                }

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

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

    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"),