code: package io.ray.api.call;
  
  import io.ray.api.ActorHandle;
  import io.ray.api.Ray;
  import io.ray.api.concurrencygroup.ConcurrencyGroup;
  import io.ray.api.function.RayFuncR;
  import io.ray.api.runtimeenv.RuntimeEnv;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  /**
   * A helper to create java actor.
   *
   * @param <A> The type of the concrete actor class.
   */
  public class ActorCreator<A> extends BaseActorCreator<ActorCreator<A>> {
    private final RayFuncR<A> func;
    private final Object[] args;
  
    public ActorCreator(RayFuncR<A> func, Object[] args) {
      this.func = func;
      this.args = args;
      /// Handle statically defined concurrency groups.
      builder.setConcurrencyGroups(Ray.internal().extractConcurrencyGroups(this.func));
    }
  
    /**
     * Set the JVM options for the Java worker that this actor is running in.
     *
     * <p>Note, if this is set, this actor won't share Java worker with other actors or tasks.
     *
     * @param jvmOptions JVM options for the Java worker that this actor is running in.
     * @return self
     * @see io.ray.api.options.ActorCreationOptions.Builder#setJvmOptions(List)
     */
    public ActorCreator<A> setJvmOptions(List<String> jvmOptions) {
      builder.setJvmOptions(jvmOptions);
      return this;
    }
  
    /**
     * Create a java actor remotely and return a handle to the created actor.
     *
     * @return a handle to the created java actor.
     */
    public ActorHandle<A> remote() {
      return Ray.internal().createActor(func, args, buildOptions());
    }
  
    /** Set the concurrency groups for this actor to declare how to perform tasks concurrently. */
    public ActorCreator<A> setConcurrencyGroups(ConcurrencyGroup... groups) {
      ArrayList<ConcurrencyGroup> list = new ArrayList<>();
      Collections.addAll(list, groups);
      builder.setConcurrencyGroups(list);
      return this;
    }
  
    public ActorCreator<A> setRuntimeEnv(RuntimeEnv runtimeEnv) {
      builder.setRuntimeEnv(runtimeEnv);
      return this;
    }
  }
  