code: private static boolean isInSet(String value, Set<JQLPlaceHolder> parametersUsedInWhereConditions) {
  		for (JQLPlaceHolder ph : parametersUsedInWhereConditions) {
  			if (ph.value.equals(value))
  				return true;
  		}
  		return false;
  	}
docs: Checks if is in set.
  
  @param value
  the value
  @param parametersUsedInWhereConditions
  the parameters used in where conditions
  @return true, if is in set