@Override
  public void emergencyClose() {
    shuttingDown.set(true);
    if (loadConditioningProcessor != null) {
      loadConditioningProcessor.shutdown();
    }
    allConnectionsMap.emergencyClose();
  }
Destroys connection if and only if {@link ConnectionAccounting} exceeds maximum.

@return true if connection is destroyed, otherwise false.
geode-core/src/main/java/org/apache/geode/cache/client/internal/pooling/ConnectionManagerImpl.java