code: public static String readString(Path targetPath) {
          try {
              return new String(Files.readAllBytes(targetPath));
          } catch (IOException e) {
              return JMExceptionManager.handleExceptionAndReturnNull(log, e,
                      "readString", targetPath);
          }
      }
docs: Read string string.
  
  @param targetPath the target path
  @return the string