I can't engage the addressing module of Axis2 1.5 in Eclipse

[Zé Ricardo]

Hi devs, I keep getting the following error:

Exception in thread "main" org.apache.axis2.AxisFault: Unable to
engage module : addressing
       at 
org.apache.axis2.client.ServiceClient.engageModule(ServiceClient.java:357)

when I try to run my client in Eclipse. I have added the
addressing-1.5.mar file to my build path. It worked previously, when I
used the 1.4 version, but it's not working anymore. Does anyone know
what it can possibly be?

I'm engaging the module using:

ServiceClient sc = new ServiceClient();
sc.engageModule("addressing");

Best regards,

Zé Ricardo.