com.liferay.portal.workflow
Classes 
WorkflowDefinitionManagerProxyBean
WorkflowEngineManagerProxyBean
WorkflowHandlerRegistryImpl
WorkflowInstanceManagerProxyBean
WorkflowLockingAdvice
WorkflowLogManagerProxyBean
WorkflowPermissionAdvice
WorkflowStatusManagerImpl
WorkflowStatusManagerProxyBean
WorkflowTaskManagerProxyBean