ddth-cache-adapter-core/src/main/java/com/github/ddth/cacheadapter/cacheimpl/guava/GuavaCache.java
@Override
    protected Object internalGet(String key) {
        try {
            Object result = cache.get(key);
            if (result instanceof CacheEntry) {
                // update entry's private TTL if needed.
                CacheEntry ce = (CacheEntry) result;
                if (ce.touch()) {
                    set(key, ce);
                }
            }
            return cloneCacheEntries ? CacheUtils.tryClone(result) : result;
        } catch (Exception e) {
            Throwable t = e.getCause();
            if (t instanceof CacheException.CacheEntryNotFoundException) {
                return null;
            } else {
                throw new RuntimeException(e);
            }
        }
    }
@Override
    protected Object internalGet(String key) {
        try {
            Object result = cache.get(key);
            if (result instanceof CacheEntry) {
                // update entry's private TTL if needed.
                CacheEntry ce = (CacheEntry) result;
                if (ce.touch()) {
                    set(key, ce);
                }
            }
            return cloneCacheEntries ? CacheUtils.tryClone(result) : result;
        } catch (Exception e) {
            Throwable t = e.getCause();
            if (t instanceof CacheException.CacheEntryNotFoundException) {
                return null;
            } else {
                throw new RuntimeException(e);
            }
        }
    }
{@inheritDoc}