JAXB SchemaGen with Enums in a different package

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How do you generate a schema from JAXB Objects that reference enums in a different package?

Below is an example:

Enum Class

package com.example.one

public enum EnumExample {
    VALUE_ONE
    VALUE_TWO
}

JAXB Class

package com.example.two

public class Example {

private EnumExample enumExample;

    @XMLElement(name="enumExample", required=true)
    public EnumExample getEnumExample() {
        return enumExample
    }

    public void setEnumExample() {
        this.enumExample = enumExample;
    }
}

package-info.java

@javax.xml.bind.annotation.XmlSchema(namespace = "http://example.com", elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED) 
package com.example.two;

Ant Target

<path id="glassfish.schemagen.classpath">
    <pathelement location="/apps/glassfish/lib/webservices-tools.jar" />
</path>

<taskdef name="schemagen" classname="com.sun.tools.jxc.SchemaGenTask">
    <classpath refid="glassfish.schemagen.classpath" />
</taskdef>

<schemagen srcdir="${src.dir}/com/example/two" destdir="xsd">
    <schema namespace="http://exmaple.com" file="example.xsd" />
</schemagen>

When I run the above example I get the following:

[schemagen] anomalous package-info.java path: package-info.java [schemagen] Generating schema from 7 source files [schemagen] Problem encountered during annotation processing; [schemagen] see stacktrace below for more information. [schemagen] java.lang.NullPointerException [schemagen] at com.sun.tools.jxc.model.nav.APTNavigator$2.onDeclaredType(APTNavigator.java:428) [schemagen] at com.sun.tools.jxc.model.nav.APTNavigator$2.onClassType(APTNavigator.java:402) [schemagen] at com.sun.tools.jxc.model.nav.APTNavigator$2.onClassType(APTNavigator.java:456) [schemagen] at com.sun.istack.tools.APTTypeVisitor.apply(APTTypeVisitor.java:27) [schemagen] at com.sun.tools.jxc.model.nav.APTNavigator.getBaseClass(APTNavigator.java:109) [schemagen] at com.sun.tools.jxc.model.nav.APTNavigator.getBaseClass(APTNavigator.java:85) [schemagen] at com.sun.xml.bind.v2.model.impl.PropertyInfoImpl.getIndividualType(PropertyInfoImpl.java:190) [schemagen] at com.sun.xml.bind.v2.model.impl.PropertyInfoImpl.(PropertyInfoImpl.java:132) [schemagen] at com.sun.xml.bind.v2.model.impl.ERPropertyInfoImpl.(ERPropertyInfoImpl.java:53) [schemagen] at com.sun.xml.bind.v2.model.impl.ElementPropertyInfoImpl.(ElementPropertyInfoImpl.java:96) [schemagen] at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.createElementProperty(ClassInfoImpl.java:886) [schemagen] at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.addProperty(ClassInfoImpl.java:841) [schemagen] at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.findGetterSetterProperties(ClassInfoImpl.java:966) [schemagen] at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.getProperties(ClassInfoImpl.java:298) [schemagen] at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:243) [schemagen] at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:209) [schemagen] at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:315) [schemagen] at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:330) [schemagen] at com.sun.tools.xjc.api.impl.j2s.JavaCompilerImpl.bind(JavaCompilerImpl.java:90) [schemagen] at com.sun.tools.jxc.apt.SchemaGenerator$1.process(SchemaGenerator.java:115) [schemagen] at com.sun.mirror.apt.AnnotationProcessors$CompositeAnnotationProcessor.process(AnnotationProcessors.java:60) [schemagen] at com.sun.tools.apt.comp.Apt.main(Apt.java:454) [schemagen] at com.sun.tools.apt.main.JavaCompiler.compile(JavaCompiler.java:258) [schemagen] at com.sun.tools.apt.main.Main.compile(Main.java:1102) [schemagen] at com.sun.tools.apt.main.Main.compile(Main.java:964) [schemagen] at com.sun.tools.apt.Main.processing(Main.java:95) [schemagen] at com.sun.tools.apt.Main.process(Main.java:85) [schemagen] at com.sun.tools.apt.Main.process(Main.java:67) [schemagen] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [schemagen] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [schemagen] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [schemagen] at java.lang.reflect.Method.invoke(Method.java:597) [schemagen] at com.sun.tools.jxc.AptBasedTask$InternalAptAdapter.execute(AptBasedTask.java:97) [schemagen] at com.sun.tools.jxc.AptBasedTask.compile(AptBasedTask.java:144) [schemagen] at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:906) [schemagen] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291) [schemagen] at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) [schemagen] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [schemagen] at java.lang.reflect.Method.invoke(Method.java:597) [schemagen] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) [schemagen] at org.apache.tools.ant.Task.perform(Task.java:348) [schemagen] at org.apache.tools.ant.Target.execute(Target.java:390) [schemagen] at org.apache.tools.ant.Target.performTasks(Target.java:411) [schemagen] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1397) [schemagen] at org.apache.tools.ant.Project.executeTarget(Project.java:1366) [schemagen] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) [schemagen] at org.apache.tools.ant.Project.executeTargets(Project.java:1249) [schemagen] at org.apache.tools.ant.Main.runBuild(Main.java:801) [schemagen] at org.apache.tools.ant.Main.startAnt(Main.java:218) [schemagen] at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280) [schemagen] at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)

I know it's the enum's causing the error because if I switch to a String it goes away. How can I generate a schema with the above example where the enums are either in the same namespace or a different name space?

1

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schemagen supports most of the attributes defined by the javac task

Have you tried using include or exclude elements (untested)?

<schemagen srcdir="${src.dir}/com/example" destdir="xsd">
    <schema namespace="http://exmaple.com" file="example.xsd" />
    <include name="one/EnumExample.java"/>
    <include name="two/Example.java"/>
</schemagen>