The spring bundles have a lot of optional imports and in some cases when installing features causes all there refreshes, which may result in such errors. In some cases the order may help you with this.
I find that when using equinox instead of felix, things work somehow better. -- *Ioannis Canellos* * FuseSource <http://fusesource.com> ** Blog: http://iocanel.blogspot.com ** Apache Karaf <http://karaf.apache.org/> Committer & PMC Apache ServiceMix <http://servicemix.apache.org/> Committer Apache Gora <http://incubator.apache.org/gora/> Committer *