public void removeAssignedStoragePools(final Set<String> storagePoolURIs){
  if (storagePoolURIs != null && !storagePoolURIs.isEmpty() && _assignedStoragePools != null) {
    HashSet<String> removeStoragePools=new HashSet<String>();
    removeStoragePools.addAll(storagePoolURIs);
    _assignedStoragePools.removeAll(removeStoragePools);
  }
}

public void removeAssignedStoragePools ( final Set < String > storagePoolURIs ) { if ( storagePoolURIs != null && ! storagePoolURIs . isEmpty ( ) && _assignedStoragePools != null ) { HashSet < String > removeStoragePools = new HashSet < String > ( ) ; removeStoragePools . addAll ( storagePoolURIs ) ; _assignedStoragePools . removeAll ( removeStoragePools ) ; } }
removes the passed pool uris from the set of storage pools assigned to the storage pool by the user .
