Memoized fibonacci method - Generated Java code

gistfile1.java

@Memoize
public BigInteger fibonacci(final int n) {
  try {
    return fibonacci_cache.get(n);
  } catch(Throwable e) {
    throw Exceptions.sneakyThrow(e.getCause());
  }
}

private BigInteger fibonacci_init(final int n) {
    -- fibonacci algorithm here --
}

private LoadingCache<Integer,BigInteger> fibonacci_cache = CacheBuilder.newBuilder()
  .build(new CacheLoader<Integer, BigInteger>() {
    @Override
  	public BigInteger load(Integer key) throws Exception {
  		return fibonacci_init(key);
  	}
  })
  ;