[JBoss JIRA] (WFLY-3456) Can not call method with generic type parameter with null value

Wednesday, 15 July 2015

    [
https://issues.jboss.org/browse/WFLY-3456?page=com.atlassian.jira.plugin....
] 

Tamas Bodis commented on WFLY-3456:
-----------------------------------

With this modification (in WildFly 9.0.0.Final) we cannot access now the 'bridge'
methods. 
This makes sense for the first time, but now if we try to call a package private
class's public method through a public subclass, than we cannot reach it
(MethodNotFoundException) because _from outside_ we see that method as a bridge method.
Like in this example:

{code:title=Parent.java|borderStyle=solid}
class Parent {
    public String methodToCall() {
        return "value";
    }
}
{code}

{code:title=Child.java|borderStyle=solid}
public class Child extends Parent {
}
{code}

{code:title=test.jsp|borderStyle=solid}
  ${child.methodToCall()}
{code}

And because there are frameworks (like Spring Data in our case) which use this kind of API
encapsulation we cannot switch to WildFly9 easily. Do you have any idea how to solve this
problem in general in the future releases?

...
 Can not call method with generic type parameter with null value
 ---------------------------------------------------------------

                 Key: WFLY-3456
                 URL: https://issues.jboss.org/browse/WFLY-3456
             Project: WildFly
          Issue Type: Bug
          Components: JSF
    Affects Versions: 8.1.0.Final
            Reporter: Marcel Neuwohner
            Assignee: Farah Juma
             Fix For: 9.0.0.Alpha1

 If you call a method with a generic type parameter from EL with null as parameter value
you get 
 {code}
 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)
 {code} 

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