SASI queries- cqlsh vs java driver

[Peter Heitman]

When I create a SASI index on a secondary column, from cqlsh I can execute
a query

SELECT blah FROM foo WHERE <indexed column> IN ('mytext') ALLOW FILTERING;

but not from the java driver:

SELECT blah FROM foo WHERE <indexed column> IN :val ALLOW FILTERING

Here I get an exception

com.datastax.driver.core.exceptions.InvalidQueryException: IN predicates on
non-primary-key columns (<indexed column>) is not yet supported
        at
com.datastax.driver.core.exceptions.InvalidQueryException.copy(InvalidQueryException.java:49)
~[cassandra-driver-core-3.6.0.jar:na]

Why are they different? Is there anything I can do with the java driver to
get past this exception?

Peter