[Rev 01] RFR: No need for locking when using TestHostedRepository

[Robin Westberg]

The pull request has been updated with additional changes.

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Added commits:
 - f6c0004c: Recreate if needed
 - c37fb56e: Improve hosted repo init times

Changes:
  - all: https://git.openjdk.java.net/skara/pull/219/files
  - new: https://git.openjdk.java.net/skara/pull/219/files/16446a6e..f6c0004c

Webrevs:
 - full: https://webrevs.openjdk.java.net/skara/219/webrev.01
 - incr: https://webrevs.openjdk.java.net/skara/219/webrev.00-01

  Stats: 52 lines in 2 files changed: 42 ins; 1 del; 9 mod
  Patch: https://git.openjdk.java.net/skara/pull/219.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/219/head:pull/219

PR: https://git.openjdk.java.net/skara/pull/219