wscompile generates arrays in a special way. It isolates the array types into a seperate namespace and imports them into the target namespace, as shown here:

====================================================================
package org.jboss.test.ws.tools.sei;

import org.jboss.test.ws.jaxb.sei.Base;

import java.rmi.Remote;
import java.rmi.RemoteException;

/**

• An SEI with an array type
  *
• @author <Anil.Saldhana@jboss.org>Anil Saldhana
• @since Nov 3, 2004
  */
  public interface ArrayInterface extends Remote
  {
  public void customMethod(Base base, Integer[] a) throws RemoteException, SomeException;
  }
  ===================================================================

The wsdl that is generated is:
====================================================================
<?xml version="1.0" encoding="UTF-8"?>

<definitions name="ArrayInterfaceService" targetNamespace="http://org.jboss.ws" xmlns:tns="http://org.jboss.ws" xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:ns2="http://arrays/java/lang">
<types>
<schema targetNamespace="http://arrays/java/lang" xmlns:tns="http://arrays/java/lang" xmlns:soap11-enc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns="http://www.w3.org/2001/XMLSchema">
<import namespace="http://org.jboss.ws"/>
<complexType name="IntegerArray">
<sequence>
<element name="value" type="int" nillable="true" minOccurs="0" maxOccurs="unbounded"/></sequence></complexType></schema>
<schema targetNamespace="http://org.jboss.ws" xmlns:tns="http://org.jboss.ws" xmlns:soap11-enc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns="http://www.w3.org/2001/XMLSchema">
<import namespace="http://arrays/java/lang"/>
<complexType name="Base">
<sequence>
<element name="a" type="int"/>
<element name="b" type="int"/></sequence></complexType>
<complexType name="SomeException">
<sequence/></complexType>
<element name="SomeException" type="tns:SomeException"/></schema></types>
<message name="ArrayInterface_customMethod">
<part name="Base_1" type="tns:Base"/>
<part name="arrayOfInteger_2" type="ns2:IntegerArray"/></message>
<message name="ArrayInterface_customMethodResponse"/>
<message name="SomeException">
<part name="SomeException" element="tns:SomeException"/></message>
<portType name="ArrayInterface">
<operation name="customMethod" parameterOrder="Base_1 arrayOfInteger_2">
<input message="tns:ArrayInterface_customMethod"/>
<output message="tns:ArrayInterface_customMethodResponse"/>
<fault name="SomeException" message="tns:SomeException"/></operation></portType>
<binding name="ArrayInterfaceBinding" type="tns:ArrayInterface">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="rpc"/>
<operation name="customMethod">
<soap:operation soapAction=""/>
<input>
<soap:body use="literal" namespace="http://org.jboss.ws"/></input>
<output>
<soap:body use="literal" namespace="http://org.jboss.ws"/></output>
<fault name="SomeException">
<soap:fault name="SomeException" use="literal"/></fault></operation></binding>
<service name="ArrayInterfaceService">
<port name="ArrayInterfacePort" binding="tns:ArrayInterfaceBinding">
<soap:address location="REPLACE_WITH_ACTUAL_URL"/></port></service></definitions>
======================================================================

As you can see, wscompile has special array handling.