code: public static String readScript(LineNumberReader lineNumberReader, String commentPrefix, String separator)
              throws IOException {
  
          String currentStatement = lineNumberReader.readLine();
          StringBuilder scriptBuilder = new StringBuilder();
          while (currentStatement != null) {
              if (commentPrefix != null && !currentStatement.startsWith(commentPrefix)) {
                  if (scriptBuilder.length() > 0) {
                      scriptBuilder.append('\n');
                  }
                  scriptBuilder.append(currentStatement);
              }
              currentStatement = lineNumberReader.readLine();
          }
          appendSeparatorToScriptIfNecessary(scriptBuilder, separator);
          return scriptBuilder.toString();
      }
docs: Read a script from the provided {@code LineNumberReader}, using the
  supplied comment prefix and statement separator, and build a
  {@code String} containing the lines.
  <p>
  Lines <em>beginning</em> with the comment prefix are excluded from the
  results; however, line comments anywhere else &mdash; for example, within
  a statement &mdash; will be included in the results.
  
  @param lineNumberReader the {@code LineNumberReader} containing the script to be
  processed
  @param commentPrefix    the prefix that identifies comments in the SQL script &mdash;
  typically "--"
  @param separator        the statement separator in the SQL script &mdash; typically
  ";"
  @return a {@code String} containing the script lines
  @throws IOException in case of I/O errors