private synchronized Cache getHeap() { if (offHeap == null) { if (CacheManager.getInstance().cacheExists("hydrated-offheap-cache")) { offHeap = CacheManager.getInstance().getCache("hydrated-offheap-cache"); } else { CacheConfiguration config = new CacheConfiguration("hydrated-offheap-cache", 500).eternal(true).overflowToOffHeap(true).maxMemoryOffHeap("1400M"); Cache cache = new Cache(config); CacheManager.create().addCache(cache); offHeap = cache; } } return offHeap; }