code: public com.ibm.websphere.cache.CacheEntry getEntry(com.ibm.websphere.cache.EntryInfo ei) {
          return getEntry(ei, true);
      }
docs: This returns the cache entry identified by the specified entryInfo. It returns null if not in the cache.
  
  @param ei
  The entryInfo for the entry.
  @return The entry identified by the entryInfo.