Set the value for the {@code maxIdlePerKey} configuration attribute for pools created with this configuration instance.
@param maxIdlePerKey The new setting of {@code maxIdlePerKey} for this configuration instance
@see GenericKeyedObjectPool#setMaxIdlePerKey(int)
See Implementation
Set the value for the {@code maxIdlePerKey} configuration attribute for pools created with this configuration instance.
@param maxIdlePerKey The new setting of {@code maxIdlePerKey} for this configuration instance
@see GenericKeyedObjectPool#setMaxIdlePerKey(int)