WSDL2Java tool fails with NullPointerException
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                 Key: AXIS2-3700
                 URL: https://issues.apache.org/jira/browse/AXIS2-3700
             Project: Axis 2.0 (Axis2)
          Issue Type: Bug
          Components: wsdl
    Affects Versions: 1.3
         Environment: Windows XP 
            Reporter: Raj
         Attachments: OrderEntryDocWSDL.wsdl

I have created a WSDL (DOC Liternal webservice) and try to generate java code 
based on the WSDL. The tool wsdl2java is failing with NullPointerException. I 
have validated the WSDL and it is valid.

I will be more than happy to send the Schemas and WSDL if needed. I am not sure 
how I can upload it. I appreciate your help in this regard.

Thanks
Raj


Exception in thread "main" 
org.apache.axis2.wsdl.codegen.CodeGenerationException: 
java.lang.RuntimeException: ja
        at 
org.apache.axis2.wsdl.codegen.CodeGenerationEngine.generate(CodeGenerationEngine.java:265)
        at org.apache.axis2.wsdl.WSDL2Code.main(WSDL2Code.java:35)
        at org.apache.axis2.wsdl.WSDL2Java.main(WSDL2Java.java:24)
Caused by: java.lang.RuntimeException: 
java.lang.reflect.InvocationTargetException
        at 
org.apache.axis2.wsdl.codegen.extension.SimpleDBExtension.engage(SimpleDBExtension.java:53)
        at 
org.apache.axis2.wsdl.codegen.CodeGenerationEngine.generate(CodeGenerationEngine.java:218)
        ... 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:597)
        at 
org.apache.axis2.wsdl.codegen.extension.SimpleDBExtension.engage(SimpleDBExtension.java:50)
        ... 3 more
Caused by: org.apache.axis2.schema.SchemaCompilationException: 
java.lang.NullPointerException
        at 
org.apache.axis2.schema.SchemaCompiler.compile(SchemaCompiler.java:221)
        at 
org.apache.axis2.schema.ExtensionUtility.invoke(ExtensionUtility.java:80)
        ... 8 more
Caused by: java.lang.NullPointerException
        at 
org.apache.axis2.schema.SchemaCompiler.resolveParentSchema(SchemaCompiler.java:729)
        at 
org.apache.axis2.schema.SchemaCompiler.getType(SchemaCompiler.java:2301)
        at 
org.apache.axis2.schema.SchemaCompiler.processSimpleType(SchemaCompiler.java:2526)
        at 
org.apache.axis2.schema.SchemaCompiler.processSimpleSchemaType(SchemaCompiler.java:2475)
        at 
org.apache.axis2.schema.SchemaCompiler.processSchema(SchemaCompiler.java:871)
        at 
org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:518)
        at 
org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:478)
        at 
org.apache.axis2.schema.SchemaCompiler.process(SchemaCompiler.java:1899)
        at 
org.apache.axis2.schema.SchemaCompiler.processParticle(SchemaCompiler.java:1788)
        at 
org.apache.axis2.schema.SchemaCompiler.processComplexType(SchemaCompiler.java:977)
        at 
org.apache.axis2.schema.SchemaCompiler.processNamedComplexSchemaType(SchemaCompiler.java:914)
        at 
org.apache.axis2.schema.SchemaCompiler.processSchema(SchemaCompiler.java:865)
        at 
org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:518)
        at 
org.apache.axis2.schema.SchemaCompiler.processElement(SchemaCompiler.java:489)
        at 
org.apache.axis2.schema.SchemaCompiler.compile(SchemaCompiler.java:302)
        at 
org.apache.axis2.schema.SchemaCompiler.compile(SchemaCompiler.java:288)
        at 
org.apache.axis2.schema.SchemaCompiler.compile(SchemaCompiler.java:288)
        at 
org.apache.axis2.schema.SchemaCompiler.compile(SchemaCompiler.java:212)
        ... 9 more

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