There’s a variety of configuration frameworks to use in our Java applications. Java Config Builder is one of them and it offers some nice features that I would like to demonstrate in the following short examples as are:

Loading values from different sources like property-files, environment variables, command-line-arguments or system properties, specifying default values, mapping arbitrary types or collections, merging configurations and using the Java Bean Validation standard aka JSR-303.

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Many articles have been written about JSR 335 aka Lambda Expressions for the Java^TM Programming Language but I like to try new things out for myself and that’s why I’d like to share my snippets here.

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