[SMX4-1404] Set some import as optional for xstream 1.4.4

git-svn-id: https://svn.apache.org/repos/asf/servicemix/smx4/bundles/trunk/xstream-1.4.4@1463484 13f79535-47bb-0310-9956-ffa450edef68
1 file changed
tree: 318878a4be0d9b8de034bd40d55ca5a347b16f56
  1. src/
  2. pom.xml