private @NotNull String convertToFieldName(final String parameterName) {
    JavaCodeStyleManager manager = JavaCodeStyleManager.getInstance(myProject);
    final String propertyName = manager.variableNameToPropertyName(parameterName, VariableKind.PARAMETER);
    final String fieldName = manager.propertyNameToVariableName(propertyName, VariableKind.FIELD);
    return fieldName;
  }
private @NotNull String convertToFieldName(final String parameterName)