code: public static boolean loadPropertiesFromClasspath(String _propertiesFile, Properties _properties) {
          if (_properties == null) {
              throw new IllegalArgumentException("Properties object required");
          }
          try {
              Properties loaded = loadPropertiesFromClasspath(_propertiesFile);
              if (loaded != null) {
                  _properties.putAll(loaded);
              }
          } catch (IOException _ex) {
              return false;
          }
          return true;
      }
docs: Same as {@link #loadPropertiesFromClasspath(String)} but does not throw checked exception.
  The returned boolean indicates if loading was successful.
  Read properties are stored in the given properties object (should never be null!).
  
  @param _propertiesFile
  @param _properties
  @return true if properties could be loaded, false otherwise