public static byte[] getInputStreamAsByteArray(InputStream stream, int length)
		throws IOException {
		byte[] contents;
		if (length == -1) {
			contents = new byte[0];
			int contentsLength = 0;
			int amountRead = -1;
			do {
				int amountRequested = Math.max(stream.available(), DEFAULT_READING_SIZE);  // read at least 8K

				// resize contents if needed
				if (contentsLength + amountRequested > contents.length) {
					System.arraycopy(
						contents,
						0,
						contents = new byte[contentsLength + amountRequested],
						0,
						contentsLength);
				}

				// read as many bytes as possible
				amountRead = stream.read(contents, contentsLength, amountRequested);

				if (amountRead > 0) {
					// remember length of contents
					contentsLength += amountRead;
				}
			} while (amountRead != -1);

			// resize contents if necessary
			if (contentsLength < contents.length) {
				System.arraycopy(
					contents,
					0,
					contents = new byte[contentsLength],
					0,
					contentsLength);
			}
		} else {
			contents = new byte[length];
			int len = 0;
			int readSize = 0;
			while ((readSize != -1) && (len != length)) {
				// See PR 1FMS89U
				// We record first the read size. In this case len is the actual read size.
				len += readSize;
				readSize = stream.read(contents, len, length - len);
			}
		}

		return contents;
	}