jit.convolve within Java?

Is it possible to make use of jit.convolve within a Java context? I believe that it should be possible to set the convolution kernel as in the example below, but when I retrieve the "in2_name" attribute it comes back as null, even after explicitly setting it.

import com.cycling74.jitter.JitterMatrix;
import com.cycling74.jitter.JitterObject;
import com.cycling74.max.Atom;
import com.cycling74.max.MaxObject;

public class Test extends MaxObject
{
    private JitterObject conv;
    private JitterMatrix kernel;

    public Test( int width, int height )
    {
        // declare convolution kernel
        kernel = new JitterMatrix( 1, "float32", 3, 3 );
        kernel.setcell2d( 1, 0, new float[] { 1.f } );
        post( "my kernel: " + kernel.getName() );

        // create jit.convolve and set kernel
        conv = new JitterObject( "jit.convolve" );

        post( "BEFORE default kernel: " + conv.getAttr( "in2_name" ) );
        conv.setAttr( "in2_name", kernel.getName() );
        post( "AFTER explicit kernel: " + conv.getAttr( "in2_name" ) );
    }

    public void notifyDeleted()
    {
        conv.freePeer();
        kernel.freePeer();
    }
}