@Override
      public void beforeDiskClear() {
        LocalRegion.ISSUE_CALLBACKS_TO_CACHE_OBSERVER = false;
        doPutFuture.set(executorServiceRule.runAsync(() -> {
          try {
            region.put("key1", "value1");
          } catch (AssertionError | Exception e) {
            errorCollector.addError(e);
          }
        }));
      }
Regression test for TRAC #37606: A cleared entry may still get logged into the Oplog due to a
very small window of race condition

<p>
Similar test in case of 'update'
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/DiskRegionJUnitTest.java