The choice to keep POJOs pure doesn't come without cost. Rather than spending the effort to develop and maintain complex configuration files it is possible to simply use annotations to mark classes and let spring do the rest of the work. Resolving dependencies can be simple if they follow a convention such as matching by type or by name. This is choosing convention over configuration .  It is also arguable that, when refactoring to another framework, removing framework specific annotations would be a trivial part of the task  and many injection annotations are now standardized.  
As we meet with God in prayer, may we continually learn to wrestle with our Refuge and struggle with our Stronghold, that we may receive strength in the inner man for those we love and serve. As you slow down, reason with God, and reflect for yourself, “May [God] grant you to be strengthened with power through his Spirit in your inner being, so that Christ may dwell in your hearts through faith — that you, being rooted and grounded in love, may have strength to comprehend with all the saints what is the breadth and length and height and depth, and to know the love of Christ that surpasses knowledge, that you may be filled with all the fullness of God” (Ephesians 3:16–19).