com.atlassian.jira.issue.fields
Interfaces 
CompositeComponentField
CompositeField
CustomField
Field
FieldManager
HideableField
NavigableField
OrderableField
RequirableField
Classes 
AbstractField
CompositeComponentNavigableFieldImpl
CustomFieldImpl
DateField
DefaultFieldManager
DueDateField
FieldException
HideableFieldImpl
IssueTypeField
KeyField
NameComparator
NavigableFieldImpl
NavigableHideableFieldImpl
NavigableOrderableFieldImpl
PriorityField
ResolutionField
SecurityField
TimeTrackingField