JEXL2.1 Circular Bit Shift To Mirror Java

I wrote a hashing function that takes a 64 bit integer in, and outputs a 64 bit integer out in JAVA and translated it to JEXL 2.1

I need it to return the same results in both, but am not too picky about how it works

Everything was fine until this line

state = (state << 7) | (state >>> (64 - 7)); // couldn't get bit shift to work in JEXL

I cannot replicate this behavior in in JEXL2.1 Bit shift doesn't seem to exist at all, I tried to replicate with multiplication and division and was getting odd off by 1 errors.

By the way.. I'm open to changing the java as long as it basically does the same thing.

I'd recommend using JEXL 3.3 instead which does implement the bitshift operators. The following example works in 3.3:

long hashState(long state) {
    return (state << 7) | (state >>> (64 - 7));
}
@Test
public void testSOHash() {
    String src ="state ->  (state << 7) | (state >>> (64 - 7))";
    final JexlEngine jexl = new JexlBuilder().create();
    JexlScript script = jexl.createScript(src);
    Object result;
    long[] checks = new long[]{33, 89, 345678990, -23233, -169, 0};
    for(long arg : checks) {
        result = script.execute(null, arg);
        Assert.assertTrue(result instanceof Number);
        long nresult = ((Number) result).longValue();
        Assert.assertEquals("checking " + arg, hashState(arg), nresult);
    }
}