private RegionAttributes createRegionAttributes(boolean isConcurrencyChecksEnabled) {
   AttributesFactory factory = new AttributesFactory();
   factory.setScope(Scope.DISTRIBUTED_ACK);
   factory.setDataPolicy(DataPolicy.REPLICATE);
   factory.setConcurrencyChecksEnabled(isConcurrencyChecksEnabled); //
   RegionAttributes ra = factory.create();
   return ra;
 }
 /** Returns the attributes of a region to be tested. */
 protected RegionAttributes getRegionAttributes() {
   AttributesFactory factory = new AttributesFactory();
   factory.setScope(Scope.LOCAL);
   factory.setConcurrencyChecksEnabled(false);
   return factory.create();
 }