| ConfluenceLifecycleManager | 
 Keeps track of which LifecycleAwares have been run for each Tenant. 
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| DefaultPluginUpgradeFinalizationManager | 
An sub-class of SAL's  DefaultPluginUpgradeManager that specifically manages the lifecycle of
  PluginUpgradeFinalizationTasks in the context of ZDU,
 i.e.  
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| ExecutionStrategyTemplate<S> | 
 Template for service executions 
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| ForkAndJoinExecutionStrategy<S> | 
 Fans executions out and joins them. 
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| MeasuringPluginUpgradeManager | 
 Measures the execution times of individual upgrade tasks. 
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| ModuleExecutionFilter<S> | 
 Filters by ModuleCompleteKey. 
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| SequentialExecutionStrategy<S> | 
 Executes in the registration order. 
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| ServiceExecutionStrategyComposite<S> | 
 Composite for different service execution strategies. 
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| ServiceExecutionTemplate<S,R> | 
 Template for service executions. 
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| SpringManagedModuleReferenceParser | 
 Derives a ModuleCompleteKey from a dynamic module service export. 
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| StaticServiceExecution<S,R> | 
 Delegates service execution to a callback. 
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