old_contents: load("//tools/bzl:maven_jar.bzl", "maven_jar")
  
  def external_plugin_deps():
    maven_jar(
      name = 'groovy',
      artifact = 'org.codehaus.groovy:groovy-all:2.2.1',
      sha1 = '07ae565d50d24167c4e5d74b96f4126d4c56f16f',
    )
  
new_contents: load("//tools/bzl:maven_jar.bzl", "maven_jar")
  
  def external_plugin_deps():
    maven_jar(
      name = 'groovy',
      artifact = 'org.codehaus.groovy:groovy-all:2.4.12',
      sha1 = '760afc568cbd94c09d78f801ce51aed1326710af',
    )
  
subject: Upgrade groovy-all to version 2.4.12