<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def read_msbuild_json(path, values=[]):
 """Reads the MS Build JSON file at the path and returns its contents. Keyword arguments: values -- The list to append the contents to (default []) """

    if not os.path.exists(path):
        logging.info('Could not find MS Build JSON file at %s', path)
        return values

    try:
        values.extend(__read_json_file(path))
    except Exception as e:
        logging.exception('Could not read MS Build JSON file at %s', path)
        return values

    logging.info('Processing MS Build JSON file at %s', path)

    return values