static void t5(String nm, int n, Map s, Integer[] key, int expect) {
    int sum = 0;
    timer.start(nm, n / 2);
    for (int i = n - 2; i >= 0; i -= 2) {
      if (s.remove(key[i]) != null) {
        ++sum;
      }
    }
    timer.finish();
    reallyAssert(sum == expect);
  }
@test
@synopsis Times and checks basic map operations
geode-core/src/integrationTest/java/org/apache/geode/internal/util/concurrent/cm/IntMapCheckJUnitTest.java