old_contents: """This file is a central location for configuring new SDK versions.
  """
  # Not all languages are released for every SDK version. Whenever possible, set
  # ${LANG}_SDK_VERSION = APPENGINE_VERSION.
  APPENGINE_VERSION = "1.9.63"
  
  SDK_URL_PREFIX = "https://storage.googleapis.com/appengine-sdks/featured"
  
  JAVA_SDK_SHA256 = "477eb0bdec2c98fa68e4d0d9cbd1329c140e907fa64be2c3c9c065373369e93b"
  
  JAVA_SDK_VERSION = APPENGINE_VERSION
  
  PY_SDK_SHA256 = "76b90b3a780c6dfd2e5dcd9d79ec8be2ab7c1146fd445e472f18e3aeb90fabc5"
  
  # Note: Python ahead of Java
  PY_SDK_VERSION = "1.9.69"
  
new_contents: """This file is a central location for configuring new SDK versions.
  """
  # Not all languages are released for every SDK version. Whenever possible, set
  # ${LANG}_SDK_VERSION = APPENGINE_VERSION.
  APPENGINE_VERSION = "1.9.64"
  
  SDK_URL_PREFIX = "https://storage.googleapis.com/appengine-sdks/featured"
  
  JAVA_SDK_SHA256 = "8eb229a6f2a1d6dbe4345ba854b7388c77abfd64af1f9fc8bdd1316811b2f8fc"
  
  JAVA_SDK_VERSION = APPENGINE_VERSION
  
  PY_SDK_SHA256 = "76b90b3a780c6dfd2e5dcd9d79ec8be2ab7c1146fd445e472f18e3aeb90fabc5"
  
  # Note: Python ahead of Java
  PY_SDK_VERSION = "1.9.69"
  
subject: upgrade java to 1.9.64 (#78)