Spring: PropertyPlaceHolderConfigurer to set values for non-string/integer properties?

As you said PropertyPlaceHolderConfigurer only works for String values which String can convert into the target type.

Have a look at the PropertyOverrideConfigurer when you want to override properties of specific beans whose assembling you have no control of.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.