[midPoint-git] [Evolveum/midpoint] 73c184: Make dummy objects thread safe

[mederly]

  Branch: refs/heads/support-4.2
  Home:   https://github.com/Evolveum/midpoint
  Commit: 73c184b8ccce7f46097380e2e1105ecc3be67b0d
      https://github.com/Evolveum/midpoint/commit/73c184b8ccce7f46097380e2e1105ecc3be67b0d
  Author: Pavol Mederly <mederly at evolveum.com>
  Date:   2021-05-03 (Mon, 03 May 2021)

  Changed paths:
    M icf-connectors/dummy-resource/src/main/java/com/evolveum/icf/dummy/resource/DummyObject.java

  Log Message:
  -----------
  Make dummy objects thread safe

This is an attempt to enable DummyGroup objects to participate
in multi-threaded tests.

(cherry picked from commit 729d699ec466564b14a3f8eb407f5d25ed069398)