output: #fixed code
                               @Test
  	public void objectRetrievedSuccessfullyFromExtendableObjectOffHeapPoolWithDefaultObjectOffHeapPool() {
  		ExtendableObjectOffHeapPool<SampleOffHeapClass> extendableObjectPool =
  				offHeapService.createOffHeapPool(
  						new DefaultExtendableObjectOffHeapPoolCreateParameterBuilder<SampleOffHeapClass>().
  								elementType(SampleOffHeapClass.class).
  							build());
  		
  		List<SampleOffHeapClass> objList = new ArrayList<SampleOffHeapClass>();
  		
      	for (int i = 0; i < TOTAL_ELEMENT_COUNT; i++) {
      		SampleOffHeapClass obj = extendableObjectPool.get();
      		Assert.assertEquals(0, obj.getOrder());
      		obj.setOrder(i);
      		Assert.assertEquals(i, obj.getOrder());
      		objList.add(obj);
      	}
      	
      	for (int i = 0; i < TOTAL_ELEMENT_COUNT; i++) {
      		SampleOffHeapClass obj = objList.get(i);
      		Assert.assertEquals(i, obj.getOrder());
      	}
  	}
input: #vulnerable code 
                               @Test
  	public void objectRetrievedSuccessfullyFromExtendableObjectOffHeapPoolWithDefaultObjectOffHeapPool() {
  		ExtendableObjectOffHeapPool<SampleOffHeapClass> extendableObjectPool =
  				offHeapService.createOffHeapPool(
  						new DefaultExtendableObjectOffHeapPoolCreateParameterBuilder<SampleOffHeapClass>().
  								elementType(SampleOffHeapClass.class).
  							build());
  		
  		List<SampleOffHeapClass> objList = new ArrayList<SampleOffHeapClass>();
  		
      	for (int i = 0; i < TOTAL_ELEMENT_COUNT; i++) {
      		SampleOffHeapClass obj = extendableObjectPool.get();
      		obj.setOrder(i);
      		objList.add(obj);
      	}
      	
      	for (int i = 0; i < TOTAL_ELEMENT_COUNT; i++) {
      		SampleOffHeapClass obj = objList.get(i);
      		Assert.assertEquals(i, obj.getOrder());
      	}
  	} 
                              #location 13 
                              #vulnerability type NULL_DEREFERENCE