private void endCiphers() {
    String ciphers = popString();
    DistributedSystemConfig config = (DistributedSystemConfig) stack.peek();
    config.setSSLCiphers(ciphers);
  }
We assume that there is a <code>ManagedEntityConfig</code> on top of the stack.
geode-core/src/main/java/org/apache/geode/admin/internal/ManagedEntityConfigXmlParser.java