java foundations (classpath, classloader, dependency, annotation, reflection)

about maven and jar hell:
https://dzone.com/articles/jar-hell-made-easy

java classes and class loading
https://www.ibm.com/developerworks/library/j-dyn0429/

maven internal
http://madhadron.com/posts/2013-12-30-misunderstood_maven.html

dependency inversion
https://en.wikipedia.org/wiki/Dependency_inversion_principle

maven source code
https://maven.apache.org/scm.html

how maven build dependency tree
https://maven.apache.org/shared/maven-dependency-tree/

maven underwear
https://maven.apache.org/shared/maven-dependency-tree/apidocs/org/apache/maven/shared/dependency/graph/DependencyGraphBuilder.html

maven