* @return The extracted descriptor or {@code null} if no descriptor was found.
     * @throws IOException If the descriptor is present but could not be parsed.
     */
    public ExtensionDescriptor build(File extensionJar) throws IOException {
        ExtensionDescriptor extensionDescriptor = null;

        if (extensionJar.isFile()) {

            assert event.eventTime == 1001
            assert event.displayName == 'task started'
            assert event.descriptor.name == 'some task'
            assert event.descriptor.taskPath == ':some:path'
            assert event.descriptor.parent.name == 'my build'
            assert event.descriptor.parent.parent == null
        }
    }

    /**
     * The alt-dd element specifies an optional URI to the post-assembly version of the deployment descriptor file for a
     * particular Java EE module. The URI must specify the full pathname of the deployment descriptor file relative to
     * the application's root directory. If alt-dd is not specified, the deployer must read the deployment descriptor
     * from the default location and file name required by the respective component specification.
     */

        compileJava.descriptor.name == ":compileJava"
        compileJava.descriptor.taskPath == ":compileJava"
        !compileJava.result.upToDate

        def processResources = events.operation('Task :processResources')
        processResources.descriptor.name == ":processResources"
        processResources.descriptor.taskPath == ":processResources"

    }

    protected static String rootProjectName(ProjectDescriptor descriptor) {
        ProjectDescriptor current = descriptor;
        while (current.getParent() != null) {
            current = current.getParent();
        }
        return current.getName();
    }

    protected void writeProjectAccessor(String name, ProjectDescriptor descriptor) throws IOException {
        writeLn("    /**");

        this.descriptor = objectFactory.newInstance(DefaultIvyModuleDescriptorSpec.class, objectFactory, publicationCoordinates);
        this.descriptor.setStatus(Module.DEFAULT_STATUS);
        this.descriptor.getWriteGradleMetadataMarker().set(providerFactory.provider(this::writeGradleMetadataMarker));

    public InvalidModelRuleDeclarationException(ModelRuleDescriptor descriptor, Throwable cause) {
        super("Declaration of model rule " + descriptor.toString() + " is invalid.", cause);
        if (cause == null) {
            throw new IllegalArgumentException("'cause' cannot be null");
        }
    }

    public InvalidModelRuleDeclarationException(ModelRuleDescriptor descriptor, String message) {

		mo = opt(mo)
	}
	dstMsg, srcMsg := dst.ProtoReflect(), src.ProtoReflect()
	if dstMsg.Descriptor() != srcMsg.Descriptor() {
		if got, want := dstMsg.Descriptor().FullName(), srcMsg.Descriptor().FullName(); got != want {
			panic(fmt.Sprintf("descriptor mismatch: %v != %v", got, want))
		}
		panic("descriptor mismatch")
	}
	mo.mergeMessage(dstMsg, srcMsg)
}

            assertTrue event.displayName == "Project configuration succeeded"
            assertTrue event.descriptor.displayName == 'Project configuration'
            assertTrue event.descriptor.project.buildIdentifier.rootDir == rootDir
            assertTrue event.descriptor.project.projectPath == ":some:project"
            assertTrue event.descriptor.parent == null
            assertTrue event.result instanceof ProjectConfigurationSuccessResult

                                "descriptor": "()Ljava/lang/String;",
                                "name": "getSourceCompatibility"
                            }, {
                                "binaryCompatibility": "ACCESSORS_REMOVED",
                                "descriptor": "(Ljava/lang/String;)V",
                                "name": "setSourceCompatibility"