import org.gradle.internal.serialize.Decoder;
import org.gradle.internal.serialize.Encoder;
import org.gradle.internal.serialize.Serializer;

import java.io.File;

public class TransportableActionExecutionSpecSerializer implements Serializer<TransportableActionExecutionSpec> {
    private static final byte FLAT = (byte) 0;
    private static final byte HIERARCHICAL = (byte) 1;

import org.gradle.internal.serialize.kryo.KryoBackedEncoder
import spock.lang.Specification

class TransportableActionExecutionSpecSerializerTest extends Specification {
    def serializer = new TransportableActionExecutionSpecSerializer()
    def outputStream = new ByteArrayOutputStream()
    def encoder = new KryoBackedEncoder(outputStream)
    def bytes = [ (byte) 1, (byte) 2, (byte) 3 ] as byte[]
    def usesInternalServices = true

        JavaExecHandleBuilder javaCommand = builder.getJavaCommand();
        forkOptions.getJavaForkOptions().copyTo(javaCommand);
        builder.registerArgumentSerializer(TransportableActionExecutionSpec.class, new TransportableActionExecutionSpecSerializer());
        MultiRequestClient<TransportableActionExecutionSpec, DefaultWorkResult> workerDaemonProcess = builder.build();
        WorkerProcess workerProcess = workerDaemonProcess.start();

        this.instantiatorFactory = internalServices.get(InstantiatorFactory.class);
        argumentSerializers.register(TransportableActionExecutionSpec.class, new TransportableActionExecutionSpecSerializer());
    }

    static ServiceRegistry createWorkerDaemonServices(ServiceRegistry parent) {
        return ServiceRegistryBuilder.builder()
            .displayName("worker daemon services")

Class <org.gradle.workers.internal.TransportableActionExecutionSpecSerializer> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (TransportableActionExecutionSpecSerializer.java:0)