protected void scheduleTimerTasks() {
    // Create the timer
    timer = new Timer("Timer for " + this, true);

    // Schedule the task to handle sessions to be touched
    scheduleTouchSessionsTask();

    // Schedule the task to maintain the maxActive sessions
    scheduleDetermineMaxActiveSessionsTask();
  }
For debugging: return a list of all session ids currently active
extensions/geode-modules/src/main/java/org/apache/geode/modules/session/catalina/DeltaSessionManager.java