@After public void tearDown() throws Exception {
  MemoryAllocatorImpl.freeOffHeapMemory();
  System.clearProperty(DistributionConfig.GEMFIRE_PREFIX + "validateOffHeapWithFill");
}

@ After public void tearDown ( ) throws Exception { MemoryAllocatorImpl . freeOffHeapMemory ( ) ; System . clearProperty ( DistributionConfig . GEMFIRE_PREFIX + "validateOffHeapWithFill" ) ; }
frees off heap memory .
