ImportTaskManager A simplified version of the TaskManager
ProvidesTaskProgress Long running tasks that implement ProvidesTaskProgress will be able to tell the task infrastructure about what progress they are making 
RequiresTaskInformation<T extends Serializable> A long running task that implements RequiresTaskInformation will be told about the TaskDescriptor that describes the task. 
TaskContext This interface is used by parts of the code that kick off tasks to give the task a "context" to operate in. 
TaskDescriptor<V extends Serializable> TaskDescriptor decribes the state of a long running task. 
TaskManager The TaskManager contains a collection of tasks that are long running. 
TaskMatcher Class to represent a condition when searching for tasks. 
TaskProgressIndicator Can be used to either pull or listen to the progress of a long running task. 
TaskProgressListener A listener that is told when progress is made on a long running task. 
TaskProgressSink Interface that can be used by tasks to indicate progress. 


CompositeProgressSink A task progress sink that is made up of several other task progress sinks. 
GenericTaskContext Generic context, could be used by other plugins outside JIRA to run in data center mode. 
ImportTaskManagerImpl An implementation of a ImportTaskManager
JohnsonEventProgressSink A task progress sink that can update a Johnson Event with progress updates. 
LoggingProgressSink A task progress sink that will log progress updates to the logger passed in. 
MockTaskDescriptor<V extends Serializable>  
ProgressMonitoringFileInputStream A FileInputStream that can log progress when the inputstream is being read. 
ScalingTaskProgessSink Takes the "virtual progress" made and scales it into an "actual progress" for the contained sink. 
StatefulTaskProgressSink A simple TaskProgressSink thats keeps track of progress. 
StepTaskProgressSink Sink that divides a range a progress range into a number of steps. 
TaskManagerImpl An implementation of a TaskManager
TaskProgressEvent Event that represents the progress of a long running task. 
TimeBasedLogSink This TaskProgressSink will output progress to the Logger if either the percentage progress changes or its been more than n milliseconds since the last log entry. 


AlreadyExecutingException This exception is thrown when attempting to start a task in a TaskManager that already has a live task with the same context.