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  1. WildFly
  2. WFLY-3456

Can not call method with generic type parameter with null value

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major Major
    • 9.0.0.Alpha1
    • 8.1.0.Final
    • JSF
    • None
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      Minimal example to reproduce the issue:

      Failing expression: 

       #{simpleOrderHandler.getLastUpdate(null)} 
          import java.util.Date;  
      
    public interface SimpleDataTableHandler<T> {  
     public Date getLastUpdate(T item);  
    }  
      
    import java.util.Date;  
    import javax.enterprise.inject.Model;  
      
    @Model  
    public class SimpleOrderHandler implements SimpleDataTableHandler<SimpleOrder> {  
      
        @Override  
        public Date getLastUpdate(SimpleOrder item) {  
            return new Date();  
        }  
      
    }
      Show
      Minimal example to reproduce the issue: Failing expression: #{simpleOrderHandler.getLastUpdate( null )} import java.util.Date; public interface SimpleDataTableHandler<T> { public Date getLastUpdate(T item); } import java.util.Date; import javax.enterprise.inject.Model; @Model public class SimpleOrderHandler implements SimpleDataTableHandler<SimpleOrder> { @Override public Date getLastUpdate(SimpleOrder item) { return new Date(); } }

      If you call a method with a generic type parameter from EL with null as parameter value you get 

      javax.el.MethodNotFoundException

Unable to find unambiguous method: SimpleOrderHandler$Proxy$_$$_WeldClientProxy.getLastUpdate(null)

at
javax.el.Util.findWrapper(Util.java:322)
javax.el.Util.findMethod(Util.java:203)
javax.el.ELUtil.findMethod(ELUtil.java:288)
javax.el.BeanELResolver.invoke(BeanELResolver.java:527)
javax.el.CompositeELResolver.invoke(CompositeELResolver.java:256)
com.sun.el.parser.AstValue.getValue(AstValue.java:136)
com.sun.el.parser.AstValue.getValue(AstValue.java:204)
com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:226)
org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50)
com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)

              fjuma1@redhat.com Farah Juma
              nogotiated Marcel Neuwohner (Inactive)
              Votes:
              1 Vote for this issue
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              8 Start watching this issue

                Created:
                Updated:
                Resolved: