// shouldn't be a problem unless the buffer is shrinking each call
        return in.read(cbuf, off, Math.max(len - 1024, 0));
      }
    };
  }

  /** Wrap an appendable in an appendable to defeat any type specific optimizations. */
  private static Appendable wrapAsGenericAppendable(final Appendable a) {
    return new Appendable() {

      @Override

        // shouldn't be a problem unless the buffer is shrinking each call
        return in.read(cbuf, off, Math.max(len - 1024, 0));
      }
    };
  }

  /** Wrap an appendable in an appendable to defeat any type specific optimizations. */
  private static Appendable wrapAsGenericAppendable(final Appendable a) {
    return new Appendable() {

      @Override