List<Callable<Integer>> l = new ArrayList<>();
    l.add(
        new Callable<Integer>() {
          @Override
          public Integer call() {
            throw new ArithmeticException("/ by zero");
          }
        });
    l.add(null);
    try {
      invokeAnyImpl(e, l, false, 0, NANOSECONDS);
      fail();
    } catch (NullPointerException success) {
    } finally {

            if (existingCounter.compareAndSet(oldValue, newValue)) {
              // newValue can't == 0, so no need to check & remove
              return oldValue;
            }
          } catch (ArithmeticException overflow) {
            throw new IllegalArgumentException(
                "Overflow adding " + occurrences + " occurrences to a count of " + oldValue);
          }
        } else {

    List<Callable<Integer>> l = new ArrayList<>();
    l.add(
        new Callable<Integer>() {
          @Override
          public Integer call() {
            throw new ArithmeticException("/ by zero");
          }
        });
    l.add(null);
    try {
      invokeAnyImpl(e, l, false, 0, NANOSECONDS);
      fail();
    } catch (NullPointerException success) {
    } finally {

      this.name = checkNotNull(name);
      this.chars = checkNotNull(chars);
      try {
        this.bitsPerChar = log2(chars.length, UNNECESSARY);
      } catch (ArithmeticException e) {
        throw new IllegalArgumentException("Illegal alphabet length " + chars.length, e);
      }

      // Compute how input bytes are chunked. For example, with base64 we chunk every 3 bytes into