debugging jaxb2 maven plugin

Question

I have the following error while generate Java code from xsd using maven-jaxb2 plugin, it all working well using xjc from command line. Anyone knows how to debug maven-jaxb2 plugin?

[INFO] --- maven-jaxb2-plugin:0.8.3:generate (default) @ microsoft-windowsazure-api ---
[ERROR] Error while parsing schema(s).Location [ file:/D:/SRC/gcheng13/azure-sdk-for-java-pr/microsoft-azure-api/src/main/resources/schemas.microsoft.com.netservices.2010.10.servicebus.connect.xsd{155,87}].
org.xml.sax.SAXParseException; systemId: file:/D:/SRC/gcheng13/azure-sdk-for-java-pr/microsoft-azure-api/src/main/resources/schemas.microsoft.com.netservices.2010.10.servicebus.connect.xsd; lineNumber: 155; columnNumber: 87; src-resolve: Cannot resolve the name 'tnsn:MessageCountDetails' to a(n) 'type definition' component.
        at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:198)
        at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:134)
        at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:437)
        at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.reportSchemaErr(XSDHandler.java:4124)
        at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.reportSchemaError(XSDHandler.java:4107)
        at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.getGlobalDecl(XSDHandler.java:1667)
        at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDElementTraverser.traverseNamedElement(XSDElementTraverser.java:405)
        at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDElementTraverser.traverseLocal(XSDElementTraverser.java:194)
        at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.traverseLocalElements(XSDHandler.java:3580)
        at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.parseSchema(XSDHandler.java:622)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadSchema(XMLSchemaLoader.java:588)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadGrammar(XMLSchemaLoader.java:555)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadGrammar(XMLSchemaLoader.java:521)
        at com.sun.org.apache.xerces.internal.jaxp.validation.XMLSchemaFactory.newSchema(XMLSchemaFactory.java:240)
        at com.sun.tools.xjc.reader.xmlschema.parser.SchemaConstraintChecker.check(SchemaConstraintChecker.java:109)
        at com.sun.tools.xjc.ModelLoader.loadXMLSchema(ModelLoader.java:360)
        at com.sun.tools.xjc.ModelLoader.load(ModelLoader.java:174)
        at com.sun.tools.xjc.ModelLoader.load(ModelLoader.java:119)
        at org.jvnet.mjiip.v_2_2.XJC22Mojo.loadModel(XJC22Mojo.java:54)
        at org.jvnet.mjiip.v_2_2.XJC22Mojo.doExecute(XJC22Mojo.java:44)
        at org.jvnet.mjiip.v_2_2.XJC22Mojo.doExecute(XJC22Mojo.java:29)
        at org.jvnet.jaxb2.maven2.RawXJC2Mojo.doExecute(RawXJC2Mojo.java:318)
        at org.jvnet.jaxb2.maven2.RawXJC2Mojo.execute(RawXJC2Mojo.java:160)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)

Answer 1

In order to fix the issue at hand you should change the imports like this:

<xs:import schemaLocation="schemas.microsoft.com.2003.10.Serialization.xsd" namespace="http://schemas.microsoft.com/2003/10/Serialization/" />
<xs:import schemaLocation="schemas.microsoft.com.netservices.2011.06.servicebus.xsd" namespace="http://schemas.microsoft.com/netservices/2011/06/servicebus"/>  

This is not an error, but there are way too many declarations in the schemas.microsoft.com.netservices.2011.06.servicebus.xsd.

I personally wouldn't declare/import anything I don't use to keep the schemas simple.

I moved the xjb file in to the same directory as the xsd files, so the schemalocations are valid now.

Answer 2

You should check if the namespace (tnsn) is declared in the xsd. And if it is, then it might be an inaccessible xsd import, which could up in an error like this. Otherwise: http://confluence.highsource.org/display/MJIIP/User+Guide debug and verbose options are available...