public static Object[] assertThreadIdToSequenceIdMapHasEntryIds() {
    EventID[] evids = new EventID[5];
    Map map = pool.getThreadIdToSequenceIdMap();
    assertNotNull(map);

    evids[0] = putAlleventId1;
    evids[1] = putAlleventId2;
    evids[2] = putAlleventId3;
    evids[3] = putAlleventId4;
    evids[4] = putAlleventId5;

    assertNotNull(evids[0]);
    assertNotNull(evids[1]);
    assertNotNull(evids[2]);
    assertNotNull(evids[3]);
    assertNotNull(evids[4]);

    return evids;
  }
function to assert that the ThreadIdtoSequence id Map is not Null and has only one entry *
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/ha/HAEventIdPropagationDistributedTest.java