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From CHAPELLIERE Olivier ORANGE-FT <olivier.chapelli...@orange-ft.com>
Subject [axis2] NullPointerException with WSDL2Java
Date Wed, 23 Aug 2006 16:11:56 GMT

Hi everybody,

I have a NullPointerException while generating client code for a WSDL.
I tried axis2 version 1.0 and nightly build of august 22th 2006 and I always have the exception.

My command line is:
WSDL2Java.sh  -uri bug.wsdl -o gen

My wsdl file is the following:
     1  <?xml version="1.0" encoding="UTF-8"?>
     2  <wsdl:definitions xmlns="mynamespace"
     3                    xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
     4                    xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/"
     5                    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
     6                    targetNamespace="mynamespace">
     7
     8      <wsdl:types>
     9          <xsd:schema elementFormDefault="qualified"
    10                  targetNamespace="mynamespace"
    11                  xmlns:mynamespace="mynamespace"
    12                  xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    13
    14              <xsd:element name="myStatus"><xsd:complexType><xsd:sequence>
    15                  <xsd:element maxOccurs="1" minOccurs="1" name="errorcode" type="xsd:int"/>
    16              </xsd:sequence></xsd:complexType></xsd:element>
    17
    18              <xsd:element name="myMethod"><xsd:complexType><xsd:sequence>
    19                  <xsd:element maxOccurs="1" minOccurs="1" name="myArg" type="xsd:string"/>
    20              </xsd:sequence></xsd:complexType></xsd:element>
    21
    22              <xsd:element name="myMethod1Response"><xsd:complexType><xsd:sequence>
    23                  <xsd:element maxOccurs="1" minOccurs="1" ref="mynamespace:myStatus"/>
    24              </xsd:sequence></xsd:complexType></xsd:element>
    25
    26              <xsd:element name="myMethod2Response"><xsd:complexType><xsd:sequence>
    27                  <xsd:element maxOccurs="1" minOccurs="1" ref="mynamespace:myStatus"/>
    28              </xsd:sequence></xsd:complexType></xsd:element>
    29
    30          </xsd:schema>
    31      </wsdl:types>
    32
    33      <wsdl:message name="myMethodRequest">
    34          <wsdl:part name="input" element="myMethod"/>
    35      </wsdl:message>
    36      <wsdl:message name="myMethod1Result">
    37          <wsdl:part name="output" element="myMethod1Response"/>
    38      </wsdl:message>
    39      <wsdl:message name="myMethod2Result">
    40          <wsdl:part name="output" element="myMethod2Response"/>
    41      </wsdl:message>
    42
    43      <wsdl:portType name="myWebServices">
    44          <wsdl:operation name="myMethod1" parameterOrder="input">
    45              <wsdl:input name="myMethodRequest" message="myMethodRequest"/>
    46              <wsdl:output name="myMethod1Result" message="myMethod1Result"/>
    47          </wsdl:operation>
    48          <wsdl:operation name="myMethod2" parameterOrder="input">
    49              <wsdl:input name="myMethodRequest" message="myMethodRequest"/>
    50              <wsdl:output name="myMethod2Result" message="myMethod2Result"/>
    51          </wsdl:operation>
    52      </wsdl:portType>
    53
    54      <wsdl:binding name="myWebServicesSoapBinding" type="myWebServices">
    55          <wsdlsoap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
    56          <wsdl:operation name="myMethod1">
    57              <wsdlsoap:operation soapAction="myMethod1"/>
    58              <wsdl:input><wsdlsoap:body use="literal"/></wsdl:input>
    59              <wsdl:output><wsdlsoap:body use="literal"/></wsdl:output>
    60          </wsdl:operation>
    61          <wsdl:operation name="myMethod2">
    62              <wsdlsoap:operation soapAction="myMethod2"/>
    63              <wsdl:input><wsdlsoap:body use="literal"/></wsdl:input>
    64              <wsdl:output><wsdlsoap:body use="literal"/></wsdl:output>
    65          </wsdl:operation>
    66      </wsdl:binding>
    67
    68      <wsdl:service name="myWebServices">
    69          <wsdl:port name="myWebServices" binding="myWebServicesSoapBinding">
    70              <wsdlsoap:address location="http://localhost:8080/axis2/services/myWebServices"/>
    71          </wsdl:port>
    72      </wsdl:service>
    73  </wsdl:definitions>

And I get the following exception stack trace:

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:324)
        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.writer.JavaBeanWriter.write(JavaBeanWriter.java:218)
        at org.apache.axis2.schema.SchemaCompiler.writeComplexType(SchemaCompiler.java:838)
        at org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:563)
        at org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:436)
        at org.apache.axis2.schema.SchemaCompiler.process(SchemaCompiler.java:1373)
        at org.apache.axis2.schema.SchemaCompiler.processParticle(SchemaCompiler.java:1336)
        at org.apache.axis2.schema.SchemaCompiler.processComplexType(SchemaCompiler.java:859)
        at org.apache.axis2.schema.SchemaCompiler.processAnonymousComplexSchemaType(SchemaCompiler.java:792)
        at org.apache.axis2.schema.SchemaCompiler.processSchema(SchemaCompiler.java:775)
        at org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:475)
        at org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:446)
        at org.apache.axis2.schema.SchemaCompiler.compile(SchemaCompiler.java:308)
        at org.apache.axis2.schema.SchemaCompiler.compile(SchemaCompiler.java:230)
        at org.apache.axis2.schema.ExtensionUtility.invoke(ExtensionUtility.java:77)
        ... 8 more
Caused by: java.lang.NullPointerException
        at org.apache.axis2.schema.writer.JavaBeanWriter.process(JavaBeanWriter.java:353)
        at org.apache.axis2.schema.writer.JavaBeanWriter.write(JavaBeanWriter.java:213)
        ... 21 more

I noticed that if I comment either line 23 or line 27 it works
I look into the archive and don't find anything

Is this a know problem? Do I miss something?

Thanks for your help

Olivier



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