want to filter scanned jars for Spring component scanning

Question

I am trying to optimize a massive Spring 4, Tomcat app. Startup time is about 2 mins, and I'm wondering if there is a way to exclude certain jar files from being scanned? eg, I don't need commons-lang being scanned b/c Spring doeesn't care about that, but since you define the scanning based on context:component-scan/base-package in applicationContext.xml, i don't quite understand how I can do that. Any ideas? Maybe do something with the resource-pattern attribute?

Answer 1

In Spring 5, one can try a new feature, which generates a list of candidates at compile time. Reference: 1.10.9. Generating an index of candidate components