@Override
      public void afterHavingCompacted() {
        FLAG = true;
        if (CALLBACK_SET) {
          synchronized (mutex) {
            try {
              mutex.wait();
            } catch (InterruptedException e) {
              fail("interrupted");
            }
          }
        }
        if (logWriter.fineEnabled()) {

          logWriter.fine("In afterHavingCompacted");
        }

      }
The test will verify <br>
1. Multiple oplogs are being rolled at once 2. The Number of entries are properly conflated
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/MultipleOplogsRollingFeatureJUnitTest.java