If you are fortunate enough to be using JDK 7, the newly available Objects class is the obvious (at least to me) choice for implementing the “common” Java object ...

I previously blogged on the Apache Commons ToStringBuilder and discussed how it takes away much of the tedium normally associated with implementing toString methods. While implementing toString() does ...

Yes it's linked list and has been at least back to 1.4 IIRC. But no matter what hashing method you use, you still need to check equals () in case of collisions (if not in hashCode, then in hashCode ...