Clearing Liferay Serivice Entity Cache.

Liferay is storing the cache of the Service entities in different level. In some
circumstances/ use cases we have to clear this cache explicitly using code.
The below code will clear SampleEnitity cache.

 CacheRegistryUtil.clear("SampleEnitityImpl" );
EntityCacheUtil.clearCache("SampleEnitityImpl");
FinderCacheUtil.clearCache("SampleEnitityImpl");
FinderCacheUtil.clearCache("SampleEnitityImpl"+ ".List");

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