人工知能クラウドサービスにおけるJavaフレームワークの役割は何ですか?

import com.google.cloud.aiplatform.util.ValueConverter;
import com.google.cloud.aiplatform.v1.EndpointServiceClient;
import com.google.cloud.aiplatform.v1.EndpointServiceSettings;
import com.google.api.gax.core.CredentialsProvider;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.util.Collections;

public class HelloAIPlatform {

  public static void main(String[] args) throws IOException {
    // Set the project ID, location and model ID.
    String projectId = "YOUR_PROJECT_ID";
    String location = "YOUR_LOCATION";
    String modelId = "YOUR_MODEL_ID";

    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the "close" method on the client to safely clean up any remaining background resources.
    EndpointServiceSettings endpointServiceSettings =
        EndpointServiceSettings.newBuilder()
            .setEndpoint("us-central1-aiplatform.googleapis.com:443")
            .build();

    // Specify the credential provider for API calls.
    CredentialsProvider credentialsProvider =
        GoogleCredentials.getApplicationDefault().createScoped(Collections.singleton("https://www.googleapis.com/auth/cloud-platform"));

    EndpointServiceClient endpointServiceClient =
        EndpointServiceClient.create(endpointServiceSettings, credentialsProvider);

    // Get the full path of the model.
    String modelName = ValueConverter.toModelName(projectId, location, modelId);

    // Predict by invoking the endpoint.
    String prediction = endpointServiceClient.predict(modelName, "YOUR_INPUT");

    // Print the prediction.
    System.out.println("Prediction: " + prediction);
  }
}