XML Configuration error

[sunls]

In using of XML Configuration Module, WELD-001409 error happened.
Run Environment：JBoss6.0.0 M2，Seam XML Module Alpha1，Weld Extension Alpha1

12:55:01,828 ERROR [AbstractKernelController] Error installing to Start: name=vfsfile:/C:/opt/jboss-6.0.0.20100216-M2/se
rver/default/deploy/weld-translator.war/_WeldBootstrapBean state=Create: org.jboss.weld.exceptions.DeploymentException:
WELD-001409 Injection point has ambiguous dependencies.  Injection point:  field translator.InjectTest.map;  Qualifiers:
  [@javax.enterprise.inject.Default()]; Possible dependencies: [org.jboss.weld.bean-flat-ProducerMethod-test.xml.XMLCls.
method getMap(), org.jboss.weld.bean-flat-ProducerMethod-test.xml.XMLCls.method getMap()]
        at org.jboss.weld.bootstrap.Validator.validateInjectionPoint(Validator.java:268)
        at org.jboss.weld.bootstrap.Validator.validateBean(Validator.java:113)
        at org.jboss.weld.bootstrap.Validator.validateRIBean(Validator.java:132)
        at org.jboss.weld.bootstrap.Validator.validateBeans(Validator.java:314)
        at org.jboss.weld.bootstrap.Validator.validateDeployment(Validator.java:300)
        at org.jboss.weld.bootstrap.WeldBootstrap.validateBeans(WeldBootstrap.java:397)
        at org.jboss.weld.integration.deployer.env.helpers.BootstrapBean.boot(BootstrapBean.java:121)
        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.jboss.reflect.plugins.introspection.ReflectionUtils.invoke(ReflectionUtils.java:59)
        at org.jboss.reflect.plugins.introspection.ReflectMethodInfoImpl.invoke(ReflectMethodInfoImpl.java:151)
        at org.jboss.joinpoint.plugins.BasicMethodJoinPoint.dispatch(BasicMethodJoinPoint.java:66)
        at org.jboss.kernel.plugins.dependency.KernelControllerContextAction$JoinpointDispatchWrapper.execute(KernelCont
rollerContextAction.java:257)
...

Class and configuration file:

public class XMLCls {
  public int data;
  
  public Map<String,String> getMap(){
     Map<String,String> map = new HashMap<String,String>();
     map.put("name","John");
     return map;
  }
}

public class InjectTest {
  @Inject
  Map<String,String> map;

  ...
}

beans.xml:
<test:XMLCls>
  <s:extends/>
  <test:getMap>
     <s:Produces/>
  </test:getMap>
  <test:data>200</test:data>
</test:XMLCls>

But, remove flowing code  from beans.xml, error did not occur.Why?

<test:data>200</test:data>

[swd847]

That seems really odd, can you try with seam xml alpha2 and see if you still have the problem?

If so, can you file a JIRA with a test case?

[sunls]

Stuart Douglas,thanks for your reply.

The reason of this situation is that I put seam xml jar file into directory common/lib and war/WEB-INF/lib. Remove jar from common/lib, error do not occur.

When put seam xml jar file into directory common/lib and war/WEB-INF/lib and set Field Values in beans.xml, error occur. If do not set Field Values in beans.xml, error do not occur. I don understand that Why is there such a situation?

[swd847]

I would say that because you have two copies of seam-xml on the class path seam-xml is being started twice, so each bean will get installed twice.

[sunls]

Without initial Field Values

<test:data>200</test:data>

in beans.xml,like:

beans.xml:

<test:XMLCls>
  <s:extends/>
  <test:getMap>
     <s:Produces/>
  </test:getMap>
</test:XMLCls>

Each bean also get installed twice.Why is there no error？

[swd847]

It's kind of complicated, and is caused by two different fairly minor bugs:

- Weld can't handle two beans that are exactly the same in every way.

This is why it works before you set field values, as the second bean is installed

- Setting field values via XML results in a non-deterministic bean id

This will be fixed before seam-xml goes final. What happens is seam-xml adds a synthetic @XmlId  to the AnnotatedType, which changes the bean id, which means that both beans get installed.

Even so, you should not have two copies of seam-xml (or any portable extension really) on the classpath.