code: public static String getTrimmedBlockCommentContent(final String blockComment) {
      final String content = blockComment.substring(0, blockComment.length() - 2);
      return BLOCK_COMMENT_PROTO_STRIPPER.matcher(content).replaceAll("").substring(2);
    }
docs: Returns the block comment body stripped of leading whitespace and * in all but the first line,
  and the block comments delimiters removed.
  
  @param blockComment a C-style block comment
  @return the comment's body with all but the first line specially trimmed