private void forceGC(VM vm, final int count) {
    vm.invoke("force GC", () -> managementTestRule.getCache().getTombstoneService()
        .forceBatchExpirationForTests(count));
  }
Checks that after a restart of a server the JMX stats
for oplog recovery are updated accordingly.
geode-core/src/distributedTest/java/org/apache/geode/management/DiskManagementDUnitTest.java