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Hands-On High Performance with Spring 5 by Dinesh Radadiya, Prashant Goswami, Pritesh Shah, Subhash Shah, Chintan Mehta

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Problems with EJB

In the early days, it was very difficult for programmers to manage enterprise applications, because the enterprise Java technologies like Enterprise JavaBeans (EJB) were much heavier to provide the enterprise solutions to programmers. 

When EJB technology was first announced, it was offering a distributed component model that would allow the developers to focus only on the business side of the system while ignoring the middleware requirements, such as wiring of components, transaction management, persistence operations, security, resource pooling, threading, distribution, remoting, and so on; however, it was a very cumbersome process for developing, unit testing, and deploying EJB applications. Some of the following complexities ...

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