com.atlassian.jira.issue.fields.layout.column
Interfaces 
ColumnLayout
ColumnLayoutItem
ColumnLayoutManager
EditableColumnLayout
EditableDefaultColumnLayout
EditableSearchRequestColumnLayout
EditableUserColumnLayout
UserColumnLayout
Classes 
AbstractColumnLayoutManager
ColumnLayoutImpl
ColumnLayoutItemImpl
DefaultColumnLayoutImpl
DefaultColumnLayoutManager
EditableColumnLayoutImpl
EditableDefaultColumnLayoutImpl
EditableSearchRequestColumnLayoutImpl
EditableUserColumnLayoutImpl
ExcelColumnLayoutItem
UserColumnLayoutImpl
Exceptions 
ColumnLayoutException
ColumnLayoutStorageException