jclouds/jclouds — comment on commit 02e83c64236f069f0f39b897a0c847c6fdd22f86
File: apis/cloudstack/src/test/java/org/jclouds/cloudstack/compute/strategy/OptionsConverterTest.java line 49
By jclouds:

if we implemented NONE as immutable, you'd have caught an accidental attempt to mutate it, which made this test fail later in surefire