private ArrayList<Integer> getInactiveContainerIndexes() {
    ArrayList<Integer> indexes = getContainerIndexesWithState(State.STOPPED.toString());
    indexes.addAll(getContainerIndexesWithState(State.UNKNOWN.toString()));
    return indexes;
  }
Get the indexes of all inactive containers
geode-assembly/geode-assembly-test/src/main/java/org/apache/geode/session/tests/ContainerManager.java