public boolean removeContainer(ServerContainer container) {
    return containers.remove(container);
  }
Get a human readable unique description for the container (calls
{@link ServerContainer#toString()})

@param index the index of the container
@return a human readable unique description for the container
geode-assembly/geode-assembly-test/src/main/java/org/apache/geode/session/tests/ContainerManager.java