this.source = requireNonNull(source);
        this.cliManager = requireNonNull(cliManager);
        this.commandLine = requireNonNull(commandLine);
    }

    @Override
    public String source() {
        return source;
    }

    @Override
    public Optional<Map<String, String>> userProperties() {
        if (commandLine.hasOption(CLIManager.USER_PROPERTY)) {

   * If you override {@code iterator} or {@code remove}, you may wish to override {@link #removeAll}
   * to forward to this implementation.
   *
   * @since 7.0 (this version overrides the {@code ForwardingCollection} version as of 12.0)
   */
  @Override
  protected boolean standardRemoveAll(Collection<?> collection) {
    return Sets.removeAllImpl(this, checkNotNull(collection)); // for GWT
  }

## Common Development Tasks

### Adding a Protocol Client

1. **Implement `CrawlerClient`**:
```java
public class MyClient extends AbstractCrawlerClient {
    @Override
    public ResponseData execute(RequestData request) { /* ... */ }

    @Override
    public void close() { /* cleanup */ }
}
```

2. **Register in DI config** (`crawler.xml`):
```xml

    @JvmStatic
    @JvmName("create")
    fun ByteString.toRequestBody(contentType: MediaType? = null): RequestBody =
      object : RequestBody() {
        override fun contentType() = contentType

        override fun contentLength() = size.toLong()

        override fun writeTo(sink: BufferedSink) {
          sink.write(this@toRequestBody)
        }
      }

    /** Returns a new request body that transmits this. */

      CacheLoader<K, V> loader, Executor executor) {
    checkNotNull(loader);
    checkNotNull(executor);
    return new CacheLoader<K, V>() {
      @Override
      public V load(K key) throws Exception {
        return loader.load(key);
      }

      @Override
      public ListenableFuture<V> reload(K key, V oldValue) {
        ListenableFutureTask<V> task =

        this.inputStream = inputStream;
    }

    /**
     * Overrides the close method to ignore the close operation.
     * The underlying input stream will not be closed.
     *
     * @throws IOException if an I/O error occurs (not thrown in this implementation)
     */
    @Override
    public void close() throws IOException {
        // inputStream.close();
    }

    /**

/**
 * The "diag" goal. It should always run, despite it overrides configured goal support.
 */
@Singleton
@Named("diag")
public class Diag extends ConfiguredGoalSupport {
    @Inject
    public Diag(MessageBuilderFactory messageBuilderFactory, SecDispatcher secDispatcher) {
        super(messageBuilderFactory, secDispatcher);
    }

    @Override
    public int execute(EncryptContext context) {

    }

    @Override
    public String getClassifier() {
        return classifier;
    }

    @Override
    public boolean hasClassifier() {
        return classifier != null && !classifier.isEmpty();
    }

    @Override
    public String getScope() {
        return scope;
    }

    @Override
    public String getGroupId() {
        return groupId;

# This file contains the initial defaults for go command configuration.
# Values set by 'go env -w' and written to the user's go/env file override these.
# The environment overrides everything else.

# Use the Go module mirror and checksum database by default.
# See https://proxy.golang.org for details.
GOPROXY=https://proxy.golang.org,direct
GOSUMDB=sum.golang.org

# Automatically download newer toolchains as directed by go.mod files.

    override fun visitSource(file: String?, debug: String?) = Unit
    override fun visitOuterClass(owner: String?, name: String?, desc: String?) = Unit
    override fun visitTypeAnnotation(typeRef: Int, typePath: TypePath?, desc: String?, visible: Boolean): AnnotationVisitor? = null
    override fun visitAttribute(attr: Attribute?) = Unit