Create an instance that can be served by the pool.
@param key the key used when constructing the object @return an instance that can be served by the pool
@throws Exception if there is a problem creating a new instance, this will be propagated to the code requesting an object.
See Implementation
Create an instance that can be served by the pool.
@param key the key used when constructing the object @return an instance that can be served by the pool
@throws Exception if there is a problem creating a new instance, this will be propagated to the code requesting an object.