* such as {@link ForwardingSet#delegate}. Concrete subclasses override this method to supply the
   * instance being decorated.
   */
  protected abstract Object delegate();

  /** Returns the string representation generated by the delegate's {@code toString} method. */
  @Override
  public String toString() {
    return delegate().toString();
  }

        @Override
        public int load() {
            loadCallCount.incrementAndGet();
            return loadCallback.call();
        }

        public void setLoadCallback(LoadCallback callback) {
            this.loadCallback = callback;
        }

        public int getLoadCallCount() {
            return loadCallCount.get();
        }
    }

    @FunctionalInterface
    interface LoadCallback {

    return new CharEscaper() {
      @Override
      protected char @Nullable [] escape(char c) {
        return replacementMap.get(c);
      }
    };
  }

  // A trivial non-optimized escaper for testing.
  static UnicodeEscaper createSimpleUnicodeEscaper(ImmutableMap<Integer, char[]> replacementMap) {
    return new UnicodeEscaper() {
      @Override

        super(message);
        this.type = type;
    }

    /**
     * Returns the type of the invalid access token.
     *
     * @return the type of the invalid access token
     */
    public String getType() {
        return type;
    }

public interface CommonServerMessageBlockResponse extends CommonServerMessageBlock, Response {

    /**
     * Checks if this is an asynchronous response.
     *
     * @return is an async response
     */
    boolean isAsync();

    /**
     *
     * @return the next response
     */
    @Override
    CommonServerMessageBlockResponse getNextResponse();

    /**
     * Prepares this response for the next request.
     *

        assertArgumentNotNull("iterable", iterable);
        this.iterator = iterable.iterator();
    }

    @Override
    public boolean hasMoreElements() {
        return iterator.hasNext();
    }

    @Override
    public T nextElement() {
        return iterator.next();
    }

     */
    void retainPayload();

    /**
     * Determines whether to retain the message payload.
     *
     * @return whether to retain the message payload
     */
    boolean isRetainPayload();

    /**
     * Gets the raw payload of the message.
     *
     * @return the raw response message
     */
    byte[] getRawPayload();

    /**
     * Sets the raw payload of the message.
     *

        this.expression = expression;
        this.originalMessage = message;
    }

    public String getExpression() {
        return expression;
    }

    public String getOriginalMessage() {
        return originalMessage;
    }

			t.Errorf("ReadFile(%s) error=%v", path, err2)
			return
		}
	}
	if err != zt.Error {
		t.Errorf("error=%v, want %v", err, zt.Error)
		return
	}

	// bail if file is not zip
	if err == ErrFormat {
		return
	}

	// bail here if no Files expected to be tested
	// (there may actually be files in the zip, but we don't care)
	if zt.File == nil {
		return
	}

	if z.Comment != zt.Comment {

        }
        if (name.startsWith(concurrentPackage)) {
          Class<?> c = findLoadedClass(name);
          if (c == null) {
            return super.findClass(name);
          }
          return c;
        }
        return super.loadClass(name);
      }
    };
  }