It appears that with Karaf 4, KAR/feature file deployments fail to react gracefully to deploying the same version of the KAR file/feature file when the operation is *delete + copy*.
Essentially, the deployer just uninstalls the bundles and does not reinstall them. Karaf 3 would reinstall the bundles without issue. 14:37:48,010 | INFO | 4.0.8 | | Uninstalling bundles: 14:37:48,011 | INFO | 4.0.8 | | xxx/1.7.5 14:37:48,013 | INFO | 4.0.8 | | yyyy/3.5.5 14:37:48,016 | INFO | 4.0.8 | | zzzz/1.2.1 14:37:48,018 | INFO | 4.0.8 | | aaaa/2.3.10 14:37:48,045 | INFO | 4.0.8 | | Refreshing bundles: 14:37:48,046 | INFO | 4.0.8 | | xxx/1.7.5 (Bundle will be uninstalled) 14:37:48,046 | INFO | 4.0.8 | | yyyy/3.5.5 (Bundle will be uninstalled) 14:37:48,046 | INFO | 4.0.8 | | zzzz/1.2.1 (Bundle will be uninstalled) 14:37:48,046 | INFO | 4.0.8 | | aaaa/2.3.10 (Bundle will be uninstalled) 14:37:48,049 | INFO | 4.0.8 | | Done. -- View this message in context: http://karaf.922171.n3.nabble.com/Problems-hot-deploying-KAR-or-feature-files-tp4049505.html Sent from the Karaf - User mailing list archive at Nabble.com.