Ruby script to create an explicit dependency management section for all maven dependencies.

manage_them_all.rb

require 'nokogiri'

dependencies = {}

`mvn dependency:tree | grep [INFO]`.split("\n").each do | dependency |
  /^\[INFO\]\s[\+\-|\s\\]+(?<key>(?<group>.+):(?<artifact>.+):jar:(?<version>.+)):/ =~ dependency
  next if key.nil?
  dependencies[key] = {group: group, artifact: artifact, version: version}
end

builder = Nokogiri::XML::Builder.new do |xml|
  xml.dependencyManagement {
    xml.dependencies {
      dependencies.sort.to_h.each do |key, value|
        xml.dependency {
          xml.groupId_    value[:group]
          xml.artifactId_ value[:artifact]
          xml.version_  value[:version]
        }
      end
    }
  }
end

puts builder.to_xml