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POMethod call from an EL fails if method exists with different signatures - JSF2
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  1. POMethod call from an EL fails if method exists with different signatures - JSF2
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    copied!<p>I have a backing-bean containing a few methods that share the same names but have different signatures, e.g.:</p> <pre><code>public void voteUp( Member member, ObjectA object ) { ... } public void voteUp( Member member, ObjectB object ) { ... } </code></pre> <p>In the example, <code>ObjectA</code> and <code>ObjectB</code> types don't share anything in common.</p> <p>In my Facelet, I call actions this way:</p> <pre><code>&lt;h:form&gt; &lt;h:commandButton action="#{backingBean.voteUp(membre, objectA)}" ... /&gt; &lt;/h:form&gt; ... &lt;h:form&gt; &lt;h:commandButton action="#{backingBean.voteUp(membre, objectB)}" ... /&gt; &lt;/h:form&gt; </code></pre> <p>But it seems that sometimes (not randomly, but probably depending on which signature is first defined in my backing-bean), the method called by one of these EL is the wrong one, and I get one of those exceptions:</p> <blockquote> <p>serverError: class javax.faces.el.EvaluationException Cannot convert com.test.ObjectA@116c1800 of type class com.test.ObjectA to class com.test.ObjectB</p> </blockquote> <p>Since I'm giving my EL an object of type <code>ObjectA</code>, why is it calling the method with the <code>ObjectB</code> signature anyway? Am I forgetting something about Java basics here, or is it my EL interpretor that screws up?</p> <p>I use GlassFish 3.1.2.</p> <p>[Edit] just to make clear that everything else is ok in my code, when I rename one of the two methods in this example, everything works just fine.</p>
 

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