Failed to copy using beanutils Method

Recently in the project, it was found that the beanutils. copyproperties method sometimes fails to copy bean attributes. The final result is that both the spring and common packages are referenced in the project, both of which have the beanutils method and are incorrectly referenced. Different methods have different parameter sequences and implementations (not to mention them one by one. If you are free, analyze the source code)

Copyproperties (Object DEST, object orig) in org. Apache. commons. beanutils. beanutils is the target bean before and the source bean behind. The copyproperties (Object source, object target) of org. springframework. Beans. beanutils is the source, and the target bean is the source. It seems that the implementation of spring is simplified and easy to understand.