output: #fixed code
                                  @Override
      public boolean compareAndSwapValue(long expected, long value) {
          BytesStore bytes = this.bytes;
          return bytes != null && bytes.compareAndSwapLong(offset, expected, value);
      }
input: #vulnerable code 
                                  @Override
      public boolean compareAndSwapValue(long expected, long value) {
          if (value == LONG_NOT_COMPLETE && binaryLongReferences != null)
              binaryLongReferences.add(new WeakReference<>(this));
          return bytes.compareAndSwapLong(offset, expected, value);
      } 
                              #location 5 
                              #vulnerability type NULL_DEREFERENCE