code: @Override
      public boolean invokeEvictable(final Mp instance) throws DempsyException {
          try {
              return instance.shouldBeEvicted();
          } catch(final RuntimeException rte) {
              throw new DempsyException(rte, true);
          }
      }
docs: This lifecycle phase is implemented by invoking the {@link Mp#shouldBeEvicted()} method on the instance
  
  @see MessageProcessorLifecycle#invokeEvictable(Object)