NullPointerException generating WSDL with anonymous simple types

WSDL2Java is failing on a WSDL that has multiple anonymous simple types with a NullPointerException.

This may be related to issue AXIS2-1780, however this WSDL was tried with the latest nightly build (built 2006-12-13).

The following is output of the error with the nightly build. The same error occurs with Axis2 1.1.

Using AXIS2_HOME: c:\java\axis2-1.1.1-SNAPSHOT
Using JAVA_HOME: c:\java\jdk\jdk1.5.0_08-x64
Exception in thread "main" org.apache.axis2.wsdl.codegen.CodeGenerationException: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at org.apache.axis2.wsdl.codegen.CodeGenerationEngine.generate(CodeGenerationEngine.java:224)
at org.apache.axis2.wsdl.WSDL2Code.main(WSDL2Code.java:32)
at org.apache.axis2.wsdl.WSDL2Java.main(WSDL2Java.java:21)
Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at org.apache.axis2.wsdl.codegen.extension.SimpleDBExtension.engage(SimpleDBExtension.java:52)
at org.apache.axis2.wsdl.codegen.CodeGenerationEngine.generate(CodeGenerationEngine.java:177)
... 2 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.axis2.wsdl.codegen.extension.SimpleDBExtension.engage(SimpleDBExtension.java:49)
... 3 more
Caused by: org.apache.axis2.schema.SchemaCompilationException: java.lang.NullPointerException
at org.apache.axis2.schema.SchemaCompiler.compile(SchemaCompiler.java:257)
at org.apache.axis2.schema.ExtensionUtility.invoke(ExtensionUtility.java:72)
... 8 more
Caused by: java.lang.NullPointerException
at org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:592)
at org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:489)
at org.apache.axis2.schema.SchemaCompiler.process(SchemaCompiler.java:1488)
at org.apache.axis2.schema.SchemaCompiler.processParticle(SchemaCompiler.java:1450)
at org.apache.axis2.schema.SchemaCompiler.processComplexType(SchemaCompiler.java:950)
at org.apache.axis2.schema.SchemaCompiler.processNamedComplexSchemaType(SchemaCompiler.java:909)
at org.apache.axis2.schema.SchemaCompiler.processSchema(SchemaCompiler.java:864)
at org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:527)
at org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:489)
at org.apache.axis2.schema.SchemaCompiler.process(SchemaCompiler.java:1488)
at org.apache.axis2.schema.SchemaCompiler.processParticle(SchemaCompiler.java:1450)
at org.apache.axis2.schema.SchemaCompiler.processComplexType(SchemaCompiler.java:950)
at org.apache.axis2.schema.SchemaCompiler.processAnonymousComplexSchemaType(SchemaCompiler.java:883)
at org.apache.axis2.schema.SchemaCompiler.processSchema(SchemaCompiler.java:866)
at org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:527)
at org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:499)
at org.apache.axis2.schema.SchemaCompiler.compile(SchemaCompiler.java:336)
at org.apache.axis2.schema.SchemaCompiler.compile(SchemaCompiler.java:248)
... 9 more

It seems that removing one of the anonymous simple types allows the code to be generated without error.

The following WSDL was used (simplest form of original to reproduce bug):

<?xml version="1.0"?>
<definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:ns="http://my.service.namespace" targetNamespace="http://my.service.namespace" xmlns="http://schemas.xmlsoap.org/wsdl/">
<types>
<xsd:schema elementFormDefault="qualified" targetNamespace="http://my.service.namespace">
<xsd:element name="goodMorning">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="goodMorningDto" type="ns:goodMorningRequestDto" minOccurs="1" maxOccurs="1" />
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="goodMorningResultDto">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="goodMorningResultDto" type="ns:goodMorningResultDtoType" minOccurs="1" maxOccurs="1" />
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:complexType name="goodMorningRequestDto">
<xsd:sequence>
<xsd:element name="postcode" minOccurs="0" maxOccurs="1">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:maxLength value="4"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:element>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="goodMorningResultDtoType">
<xsd:sequence>
<xsd:element name="status" minOccurs="0" maxOccurs="1">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:maxLength value="1"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:element>
</xsd:sequence>
</xsd:complexType>
</xsd:schema>
</types>

<message name="goodMorningRequest">
<part name="parameter" element="ns:goodMorning"/>
</message>
<message name="goodMorningResponse">
<part name="parameter" element="ns:goodMorningResultDto"/>
</message>

<portType name="goodMorningPortType">
<operation name="sayGoodMorning">
<input message="ns:sayGoodMorningRequest"/>
<output message="ns:sayGoodMorningResponse"/>
</operation>
</portType>
<binding name="goodMorningSoapBinding" type="ns:goodMorningPortType">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document" />
<operation name="sayGoodMorning">
<soap:operation soapAction="http://www.test.com/goodMorning" style="document" />
<input>
<soap:body use="literal"/>
</input>
<output>
<soap:body use="literal"/>
</output>
</operation>
</binding>
<service name="goodMorning">
<port name="goodMorningPort" binding="ns:goodMorningSoapBinding">
<soap:address location="http://localhost:8080/test"/>
</port>
</service>
</definitions>