NumberFormatException when trying to refresh profile which uses custom Maven repository

Issue

You can reproduce this error by following these steps:

1) Create a child container

`fabric:container-create-child root child1`

2) Modifiy the default profile of the child1 container and added the reposioty url in the agent properties section:

`fabric:profile-edit --append --pid org.fusesource.fabric.agent/org.ops4j.pax.url.mvn.repositories=https://admin:esbtest10@10.65.211.47:8443/archiva/repository/internal/ default`

3) Deploy a bundle from the secured custom repo, to the child1 container

fabric:profile-edit --bundles fab:mvn:org.jboss.fuse.examples/eip-my-0.6/6.0.0.redhat-024

4) Refresh the default profile

fabric:profile-refresh default