Error in determining local repository path in patch service

In the non-Fabric patch service, the local repository path is determined using this snippet of code:

File localRepoPath = new File(System.getProperty("karaf.base"), "system");

There are two problems with this:

• the repository path should start at karaf.home instead of karaf.base since it is shared between a container an its child instances
• the system part is hard-coded, but it can actually be configured through the karaf.default.repository system property so we should use that instead