help with jms exception

[Bernardo, Luis]

hello,

I'm getting the following exception when creating a topic subscriber with a
selector and I cannot figure out what to make of the exception comment:

javax.jms.InvalidSelectorException: No args should be passed to a constant
([parameter: SenderId], [void])
        at com.evermind.server.jms.cb.k6(JAX)
        at com.evermind.server.jms.cp.<init>(JAX)
        at com.evermind.server.jms.cq.createSubscriber(JAX)
        at
com.gs.fi.lm.controller.web.ModelUpdateJMSSubscriber.initJMS(ModelUpd
ateJMSSubscriber.java:82)
        at
com.gs.fi.lm.controller.web.ModelManager.init(ModelManager.java:79)
        at __jspPage0_Main_jsp._jspService(__jspPage0_Main_jsp.java:48)
        at com.orionserver.http.OrionHttpJspPage.service(JAX)
        at com.evermind.server.http.d1.si(JAX)
        at com.evermind.server.http.d1.forward(JAX)
        at com.evermind.server.http.ed.sp(JAX)
        at com.evermind.server.http.ed.so(JAX)
        at com.evermind.util.f.run(JAX)

this is the line where it happens:

groupTopicSubscriber = tsession.createSubscriber(groupChangesTopic,
groupSelector, true);

and the groupSelector had been defined as:

String groupSelector = "SenderId != 116";

can someone shed some light here.

thanks.
luis