JBeans is mainly a replacement for parts of the java.beans package. There are some classes and interfaces in the java.beans package that work fine as they are. But some of the classes are quite lacking. That's were JBeans comes in. JBeans was designed from the start to be fast and simple to use. Java beans are so common today that it is unbelievable that so many people are continuously re-inventing the wheel on every project that requires access to Java beans. For example, the Apache foundation created the bean-utils package for their Jakarta projects. This is a package that provides easy access to properties on Java beans. The only trouble is that it took time and developers to build this package. It would have been easier if Apache could have started with an existing package and went from there. This is the second thing that JBeans is hoping to replace, all the custom built Java bean packages out there. 不难，应该能看懂吧
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