Consider the following SEI:

package org.jboss.test.ws.jbws1217;
public interface MySEI extends java.rmi.Remote
{

public void testException() throws com.other.exception.TestException, java.rmi.RemoteException;
}

And the additional classes:

package com.other.exception;

public class TestException
extends com.other.base.BaseException{
public TestException(){
}
}

package com.other.base;

public class BaseException
extends Exception{
public BaseException(){
}
}

Using the following wstools config:

<configuration xmlns="http://www.jboss.org/jbossws-tools">
<global>
<package-namespace package="com.other.base" namespace="http://com.other.base"/>
<package-namespace package="com.other.exception" namespace="http://com.other.exception"/>
</global>

<java-wsdl>
<service name="MySEI" style="rpc" endpoint="org.jboss.test.ws.jbws1217.MySEI"/>
<namespaces target-namespace="http://org.jboss.test.ws.jbws1217" type-namespace="http://org.jboss.test.ws.jbws1217"/>
<mapping file="jaxrpc-mapping.xml" />
<webservices ejb-link="MyEJB"/>
</java-wsdl>
</configuration>

The WSDL generated ignores the global mappings and the namespace is derived from the class packages.