public void commit() {
    attributes.setJvmOwnerId(manager.getJvmId());
    attributes.flush();
  }
Called when the session is about to go out of scope. If the session has been defined to use
async queued attributes then they will be written out at this point.
extensions/geode-modules-session-internal/src/main/java/org/apache/geode/modules/session/internal/filter/GemfireHttpSession.java