System and method for supporting mutable object handling

A computer-implemented method and system can support mutable object handling. The system comprises a cache space that is capable of storing one or more mutable cache objects, and one or more cached object graphs. Each said mutable cache object is reachable via one or more retrieval paths in the one or more cached object graph. The system further comprises a mutable-handling decorator that maintains an internal instance map that transparently translates between the one or more cached object graphs and the one or more mutable cache objects stored in the cache space.