protected void initializeMemory() {
    Runtime rt = Runtime.getRuntime();
    setMaximumHeapSize(rt.maxMemory());
    setFreeHeapSize(rt.freeMemory());
  }
returning Map of client queue size against client Id

param clientMap is a Map of client queue size against ClientProxyMembershipID
geode-core/src/main/java/org/apache/geode/admin/GemFireMemberStatus.java