@Override
    public synchronized void locatorsRemoved(List locators) {
      removedLocators.addAll(locators);
      notifyAll();
    }
A map for storing temporary objects in a remote VM so that they can be used between calls.
Cleared after each test.
geode-dunit/src/main/java/org/apache/geode/cache/client/internal/LocatorTestBase.java