java2wsdl: how to generate a struct type

[Eric White]

I am trying to induce java2wsdl to produce a struct complex type for me, 
from the code included herein.  It will produce a complex type but then 
produces the runtime error.

java.lang.IllegalArgumentException: No mapping found

The WSDL snippet produced for the included code is:

.
.
.
.
<schema targetNamespace="http://my.test.com";>
   <import namespace="http://schemas.xmlsoap.org/soap/encoding/"/>
   <complexType name="SystemComponentInfo">
     <sequence>
       <element name="classname" nillable="true" type="xsd:string"/>
       <element name="displayname" nillable="true" type="xsd:string"/>
       <element name="params" nillable="true" 
type="impl:ArrayOfArrayOf_xsd_string"/>
      <element name="version" nillable="true" 
type="impl:ArrayOf_xsd_string"/>
    </sequence>
   </complexType>
</schema>
.
.
.

Any help is greatly appreciated. I'm using Axis 1.2alpha.

My class is:

import java.io.Serializable;

public class SystemComponentInfo implements Serializable {
   /**
    *
    */
   private static final long serialVersionUID = 1L;
   /**
    *
    */
   private String[] version = {"-1234","-5678","-9012","-3456"};
   private String classname = "not set";
   private String displayname = "not set";
   private String[][] params = {{"not set"}};
   
   public String[] getversion() {
       return version;
   }

   public String toString() {
       return version[0]+"."+version[1]+"."+version[2]+"_"+version[3];
   }
  
   public void setversion(String[] version) {
       this.version = version;
   }
  
   public String getclassname() {
       return classname;
   }
   public void setclassname(String classname) {
       this.classname = classname;
   }
   public String getdisplayname() {
       return displayname;
   }
   public void setdisplayname(String displayname) {
       this.displayname = displayname;
   }
   public String[][] getparams() {
       return params;
   }
   public void setparams(String[][] params) {
       this.params = params;
   }
}