Implementation of the TargetSource interface that holds a local object.
This is the default implementation of TargetSource used by the AOP framework.
There is no need to create objects of this class in application code.
This class is serializable. However, the actual serializability of a
SingletonTargetSource will depend on whether the target is serializable.
This class is serializable. However, the actual serializability of a SingletonTargetSource will depend on whether the target is serializable.