why isEligibleToStartNext method design such in InternalResourceGroup class

[magicWyb]

private boolean isEligibleToStartNext() { checkState(Thread.holdsLock(root), "Must hold lock"); synchronized (root) { if (!canRunMore()) { return false; } return !queuedQueries.isEmpty() || !eligibleSubGroups.isEmpty(); } }

The above method is in the InternalResourceGroup class，i think this judge mehod with (!queuedQueries.isEmpty() || !eligibleSubGroups.isEmpty()) incorrectly, and it should be ( queuedQueries.isEmpty() || !eligibleSubGroups.isEmpty() ) !
Please let me know if you can have a better explanation of the judgment method in the existing code.