Mule:

mule , the hybrid offspring of a male ass (jackass, or jack) and a female horse (mare). The less-frequent cross between a female ass and a male horse results in a hinny, or hinney, which is smaller than a mule . Mules were beasts of burden in Asia Minor at least 3,000 years ago and are still used today in many parts of the world because of their ability to withstand hardships and perform work under conditions too severe for many other draft and pack animals. Mules are usually sterile. Mule 4 simplifies the expression language and reduces management complexity so that you can speed up the on-ramping process and deliver applications faster than in Mule 3. Mule applications are configured to run in Mule runtime engine ( Mule ). A request to a Mule application triggers Mule to encode the request and data in a Mule event and to pass it to either single or multiple threads. What is a mule ? Mules are the offspring of a female horse and a donkey. Mules are renowned for their toughness and placid nature.