Program: 63979
Project: 63979
Buggy source:
private void registerProvisioningFlows(){
  transitionKeyService.registerTransition(ProvisioningSetupHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.PROVISIONING_SETUP.name(),FlowPhases.PROVISIONING.name(),FlowPhases.STACK_CREATION_FAILED.name()));
  transitionKeyService.registerTransition(ProvisioningHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.PROVISIONING.name(),FlowPhases.METADATA_SETUP.name(),FlowPhases.STACK_CREATION_FAILED.name()));
  transitionKeyService.registerTransition(MetadataSetupHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.METADATA_SETUP.name(),FlowPhases.AMBARI_ROLE_ALLOCATION.name(),FlowPhases.STACK_CREATION_FAILED.name()));
  transitionKeyService.registerTransition(AmbariRoleAllocationHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.AMBARI_ROLE_ALLOCATION.name(),FlowPhases.AMBARI_START.name(),FlowPhases.STACK_CREATION_FAILED.name()));
  transitionKeyService.registerTransition(AmbariStartHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.AMBARI_START.name(),FlowPhases.CLUSTER_CREATION.name(),FlowPhases.STACK_CREATION_FAILED.name()));
  transitionKeyService.registerTransition(StackCreationFailureHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.STACK_CREATION_FAILED.name(),FlowPhases.NONE.name(),FlowPhases.NONE.name()));
  transitionKeyService.registerTransition(ClusterCreationHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.CLUSTER_CREATION.name(),FlowPhases.NONE.name(),FlowPhases.CLUSTER_STATUS_UPDATE_FAILED.name()));
  transitionKeyService.registerTransition(ClusterStatusUpdateFailureHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.CLUSTER_STATUS_UPDATE_FAILED.name(),FlowPhases.NONE.name(),FlowPhases.NONE.name()));
}

Fixed version (ground truth):
private void registerProvisioningFlows(){
  transitionKeyService.registerTransition(ProvisioningSetupHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.PROVISIONING_SETUP.name(),FlowPhases.PROVISIONING.name(),FlowPhases.STACK_CREATION_FAILED.name()));
  transitionKeyService.registerTransition(ProvisioningHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.PROVISIONING.name(),FlowPhases.METADATA_SETUP.name(),FlowPhases.STACK_CREATION_FAILED.name()));
  transitionKeyService.registerTransition(MetadataSetupHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.METADATA_SETUP.name(),FlowPhases.AMBARI_ROLE_ALLOCATION.name(),FlowPhases.STACK_CREATION_FAILED.name()));
  transitionKeyService.registerTransition(AmbariRoleAllocationHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.AMBARI_ROLE_ALLOCATION.name(),FlowPhases.AMBARI_START.name(),FlowPhases.STACK_CREATION_FAILED.name()));
  transitionKeyService.registerTransition(AmbariStartHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.AMBARI_START.name(),FlowPhases.CLUSTER_CREATION.name(),FlowPhases.STACK_CREATION_FAILED.name()));
  transitionKeyService.registerTransition(StackCreationFailureHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.STACK_CREATION_FAILED.name(),FlowPhases.NONE.name(),FlowPhases.NONE.name()));
  transitionKeyService.registerTransition(ClusterCreationHandler.class,SimpleTransitionKeyService.TransitionFactory.createTransition(FlowPhases.CLUSTER_CREATION.name(),FlowPhases.NONE.name(),FlowPhases.NONE.name()));
}