com.atlassian.jira.bc.issue.link
Interfaces 
IssueLinkService
IssueLinkTypeService
RemoteIssueLinkService
Classes 
DefaultIssueLinkService
DefaultIssueLinkTypeService
DefaultRemoteIssueLinkService
IssueLinkService.AddIssueLinkValidationResult
IssueLinkService.DeleteIssueLinkValidationResult
IssueLinkService.IssueLinkResult
IssueLinkService.IssueLinkValidationResult
IssueLinkService.SingleIssueLinkResult
RemoteIssueLinkService.CreateValidationResult
RemoteIssueLinkService.DeleteByGlobalIdValidationResult
RemoteIssueLinkService.DeleteValidationResult
RemoteIssueLinkService.RemoteIssueLinkListResult
RemoteIssueLinkService.RemoteIssueLinkResult
RemoteIssueLinkService.UpdateValidationResult