How to use

getValuesForKey

method

in

com.atlassian.jira.issue.customfields.view.CustomFieldParams

@Override
public String getValueFromCustomFieldParams(CustomFieldParams customFieldParams) {
  Collection<String> normalParams = customFieldParams.getValuesForKey(null);
  return (normalParams != null && normalParams.contains(WITH_PERFORCE_JOB)
      ? WITH_PERFORCE_JOB
      : WITHOUT_PERFORCE_JOB);
}

@Nullable
private Option extractOptionFromParams(String key, CustomFieldParams relevantParams) throws FieldValidationException
{
  Collection<String> params = relevantParams.getValuesForKey(key);
  if (params != null && !params.isEmpty())
  {
    String selectValue = params.iterator().next();
    if (ObjectUtils.isValueSelected(selectValue) && selectValue != null && !selectValue.equalsIgnoreCase("none"))
    {
      return getOptionFromStringValue(selectValue);
    }
  }
  return null;
}

@Override
public Set<Label> getValueFromCustomFieldParams(CustomFieldParams customFieldParams) throws FieldValidationException
{
  if (customFieldParams == null || customFieldParams.isEmpty())
  {
    return null;
  }
  final Collection<String> normalParams = (Collection<String>) customFieldParams.getValuesForKey(null); //single field types should not scope their parameters
  if (normalParams == null || normalParams.isEmpty())
  {
    return null;
  }
  return convertStringsToLabels(normalParams);
}

public T getValueFromCustomFieldParams(CustomFieldParams relevantParams) throws FieldValidationException
{
  if (relevantParams == null)
  {
    return null;
  }
  Collection normalParams = relevantParams.getValuesForKey(null); //single field types should not scope their parameters
  if (normalParams == null || normalParams.isEmpty())
    return null;
  String singleParam = (String) normalParams.iterator().next();
  if (TextUtils.stringSet(singleParam)) //only validate if the value is set
  {
    return getSingularObjectFromString(singleParam);
  }
  else
  {
    return null;
  }
}

final String childStringValue = getValue(customFieldParams.getValuesForKey(CascadingSelectCFType.CHILD_KEY));
final String parentStringValue = getValue(customFieldParams.getValuesForKey(CascadingSelectCFType.PARENT_KEY));
try

List params = new ArrayList(relevantParams.getValuesForKey(null));
    Collection valuesForChild = relevantParams.getValuesForKey(CHILD_KEY);
    if (valuesForChild != null)