presto-main/src/main/java/io/prestosql/util/FastutilSetHelper.java/LongStrategy/equals
class LongStrategy:        @Override
        public boolean equals(long a, long b)
        {
            try {
                Boolean result = (Boolean) equalsHandle.invokeExact(a, b);
                // FastutilHashSet is not intended be used for indeterminate values lookup
                verifyNotNull(result, "result is null");
                return TRUE.equals(result);
            }
            catch (Throwable t) {
                throwIfInstanceOf(t, Error.class);
                throwIfInstanceOf(t, PrestoException.class);
                throw new PrestoException(GENERIC_INTERNAL_ERROR, t);
            }
        }