java - ConcurrentModification EHCache多线程Java

我们有多个线程试图从EHCache获取数据，这有时会导致并发修改异常。我尝试了Retryable来解决此问题，但它似乎没有做任何事情。有什么建议？

@Override
@Retryable(include= ConcurrentModificationException.class, backoff = @Backoff(delay = 5000, maxDelay = 3000), maxAttempts = 5)
public Object getFromCache(String cacheDomain, String cacheKey) {
    Object value = null;
    Cache cacheObject = getCacheObject();
    if (cacheObject != null) {
        StringBuilder fullCacheKey = new StringBuilder();
        fullCacheKey.append(cacheDomain);
        fullCacheKey.append("|");
        fullCacheKey.append(cacheKey);
        synchronized (cacheObject) {
            Element cacheElement = cacheObject.get(fullCacheKey.toString());
            if (cacheElement != null) {
                value = cacheElement.getObjectValue();
            }
        }
        log.debug("Value from Cache with key [" + fullCacheKey.toString() + "] is " + value);
    }
    return value;
}

最佳答案

我正在对该方法进行深层复制，以防止出现此错误。这可能会带来不可预见的后果吗？该方法只能从缓存中获取，所以我相信不会有任何影响


元素cacheElement =（元素）
SerializationUtils.clone（cacheObject.get（fullCacheKey.toString（）））;