When should I use Dependency Injection and when utility methods?

Posted by Roman on Stack Overflow See other posts from Stack Overflow or by Roman
Published on 2010-05-03T14:49:40Z Indexed on 2010/05/03 14:58 UTC
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java

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dependency-injection

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object-oriented-design

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oop

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architecture

I have a Java EE project with Spring IoC container.

I've just found in Utils class static method sendMail(long list of params). I don't know why but I feel that it would look better if we had separate class (Spring bean with singleton scope) which will be responsible for sending email. But I can't find any arguments which can prove my position.

So, are there any pros (or cons) in using DI in this (rather general) situation?

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