why dcm.getAddress() function returns "null value" if i invoke that function after creating DefaultCacheManager object??

[jaga244]

Dear sir,

i am using following code to initialize DefaultCacheManager class

   DefaultCacheManager dcm= new DefaultCacheManager("Config.xml");

   Address localNodeAddress =dcm.getAddress() ; //return null

but,if initialize all caches and starting listeners for deployments ,I can get address this time

DefaultCacheManager dcm= new DefaultCacheManager("Config.xml");

  AdvancedCache cache1=dcm.getCache("cache1").getAdvancedCache() ;

.....

.....

AdvancedCache cache50=dcm.getCache("cache50").getAdvancedCache() ;

  Address localNodeAddress =dcm.getAddress() ;//can get value

is there any delay needed or something wrong in the configuration??