Martin Maier created EXTVAL-150:
-----------------------------------

             Summary: Extval does not work with new placeholder component of 
Richfaces
                 Key: EXTVAL-150
                 URL: https://issues.apache.org/jira/browse/EXTVAL-150
             Project: MyFaces Extensions Validator
          Issue Type: Bug
    Affects Versions: 2.0.6
         Environment: Java 7, Tomcat 7, Richfaces 4.3.0.Final, MyFaces 2.1.10
            Reporter: Martin Maier


The class ExtValGenericRendererWrapper intercepts several methods of Render 
classes based on reflection. This can cause problems if a Render class has a 
method with an equal name but different parameter count.

For instance: Richfaces 4.3 introduces a new class PlaceholderRendererBase with 
a method 'getConvertedValue' that takes 2 parameters. This method is not 
related to 'getConvertedValue' of javax.faces.render.Render with 3 parameters. 
However, this method gets also intercepted because the parameter count is not 
checked.

The relavant code part of ExtValGenericRendererWrapper is this (line 56):
{code}
        if (method.getName().equals("getConvertedValue") && args[1] instanceof 
UIComponent) {
            return getConvertedValue((FacesContext) args[0], (UIComponent) 
args[1], args[2]);
{code}
which should be fixed with something like
{code}
        if (method.getName().equals("getConvertedValue") && args[1] instanceof 
UIComponent && 
            && method.getParameterTypes().length == 3) {
            return getConvertedValue((FacesContext) args[0], (UIComponent) 
args[1], args[2]);
{code}

I can provide a stacktrace for this problem with the Richfaces placeholder 
component:
{code}
java.lang.IllegalStateException: Rendering of placeholder before its parent has 
failed
        at 
org.richfaces.component.AbstractPlaceholder$PlaceholderParentPreRenderListener.preRenderParent(AbstractPlaceholder.java:138)
        at 
org.richfaces.component.event.PreRenderParentListener.processEvent(PreRenderParentListener.java:70)
        at 
javax.faces.component.UIComponent$EventListenerWrapper.processEvent(UIComponent.java:1565)
        at javax.faces.event.SystemEvent.processListener(SystemEvent.java:43)
        at 
org.apache.myfaces.application.ApplicationImpl._traverseListenerList(ApplicationImpl.java:2410)
        at 
org.apache.myfaces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:577)
        at 
javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:580)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:517)
        at 
org.apache.myfaces.shared.renderkit.RendererUtils.renderChildren(RendererUtils.java:693)
        at 
org.apache.myfaces.shared.renderkit.html.HtmlGroupRendererBase.encodeEnd(HtmlGroupRendererBase.java:115)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValLazyRendererProxy.encodeEnd(ExtValLazyRendererProxy.java:77)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValRendererWrapper.encodeEnd(ExtValRendererWrapper.java:359)
        at 
org.apache.myfaces.extensions.validator.generic.renderkit.ExtValGenericRendererWrapper.intercept(ExtValGenericRendererWrapper.java:66)
        at 
org.apache.myfaces.renderkit.html.HtmlGroupRenderer$$EnhancerByCGLIB$$e84eb129.encodeEnd(<generated>)
        at 
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:665)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:545)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
        at 
org.apache.myfaces.renderkit.html.HtmlCompositeComponentRenderer.encodeEnd(HtmlCompositeComponentRenderer.java:71)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValLazyRendererProxy.encodeEnd(ExtValLazyRendererProxy.java:77)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValRendererWrapper.encodeEnd(ExtValRendererWrapper.java:359)
        at 
org.apache.myfaces.extensions.validator.generic.renderkit.ExtValGenericRendererWrapper.intercept(ExtValGenericRendererWrapper.java:66)
        at 
org.apache.myfaces.renderkit.html.HtmlCompositeComponentRenderer$$EnhancerByCGLIB$$86055b2c.encodeEnd(<generated>)
        at 
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:665)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:545)
        at 
org.richfaces.renderkit.RendererBase.renderChildren(RendererBase.java:276)
        at 
org.richfaces.renderkit.AbstractTableBaseRenderer.encodeColumn(AbstractTableBaseRenderer.java:82)
        at 
org.richfaces.renderkit.ColumnGroupRenderer.encodeRow(ColumnGroupRenderer.java:55)
        at 
org.richfaces.renderkit.AbstractRowsRenderer.process(AbstractRowsRenderer.java:80)
        at 
org.richfaces.component.AbstractColumnGroup.walk(AbstractColumnGroup.java:64)
        at 
org.richfaces.renderkit.AbstractRowsRenderer.encodeRows(AbstractRowsRenderer.java:90)
        at 
org.richfaces.renderkit.AbstractRowsRenderer.processRows(AbstractRowsRenderer.java:103)
        at 
org.richfaces.renderkit.AbstractRowsRenderer.doEncodeChildren(AbstractRowsRenderer.java:120)
        at 
org.richfaces.renderkit.RendererBase.encodeChildren(RendererBase.java:157)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValLazyRendererProxy.encodeChildren(ExtValLazyRendererProxy.java:70)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValRendererWrapper.encodeChildren(ExtValRendererWrapper.java:286)
        at 
org.apache.myfaces.extensions.validator.generic.renderkit.ExtValGenericRendererWrapper.intercept(ExtValGenericRendererWrapper.java:64)
        at 
org.richfaces.renderkit.ColumnGroupRenderer$$EnhancerByCGLIB$$7a19532d.encodeChildren(<generated>)
        at 
javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:634)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:532)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
        at 
org.apache.myfaces.renderkit.html.HtmlCompositeComponentRenderer.encodeEnd(HtmlCompositeComponentRenderer.java:71)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValLazyRendererProxy.encodeEnd(ExtValLazyRendererProxy.java:77)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValRendererWrapper.encodeEnd(ExtValRendererWrapper.java:359)
        at 
org.apache.myfaces.extensions.validator.generic.renderkit.ExtValGenericRendererWrapper.intercept(ExtValGenericRendererWrapper.java:66)
        at 
org.apache.myfaces.renderkit.html.HtmlCompositeComponentRenderer$$EnhancerByCGLIB$$86055b2c.encodeEnd(<generated>)
        at 
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:665)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:545)
        at 
org.richfaces.renderkit.AbstractTableRenderer.encodeTableFacet(AbstractTableRenderer.java:533)
        at 
org.richfaces.renderkit.AbstractTableRenderer.encodeHeaderFacet(AbstractTableRenderer.java:400)
        at 
org.richfaces.renderkit.AbstractTableRenderer.encodeTableFacets(AbstractTableRenderer.java:122)
        at 
org.richfaces.renderkit.DataTableRenderer.doEncodeBegin(DataTableRenderer.java:303)
        at 
org.richfaces.renderkit.RendererBase.encodeBegin(RendererBase.java:115)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValLazyRendererProxy.encodeBegin(ExtValLazyRendererProxy.java:63)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValRendererWrapper.encodeBegin(ExtValRendererWrapper.java:213)
        at 
org.apache.myfaces.extensions.validator.generic.renderkit.ExtValGenericRendererWrapper.intercept(ExtValGenericRendererWrapper.java:62)
        at 
org.richfaces.renderkit.DataTableRenderer$$EnhancerByCGLIB$$fc1843e8.encodeBegin(<generated>)
        at 
javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:587)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:517)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
        at 
org.apache.myfaces.renderkit.html.HtmlCompositeComponentRenderer.encodeEnd(HtmlCompositeComponentRenderer.java:71)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValLazyRendererProxy.encodeEnd(ExtValLazyRendererProxy.java:77)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValRendererWrapper.encodeEnd(ExtValRendererWrapper.java:359)
        at 
org.apache.myfaces.extensions.validator.generic.renderkit.ExtValGenericRendererWrapper.intercept(ExtValGenericRendererWrapper.java:66)
        at 
org.apache.myfaces.renderkit.html.HtmlCompositeComponentRenderer$$EnhancerByCGLIB$$86055b2c.encodeEnd(<generated>)
        at 
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:665)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:545)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
        at 
org.apache.myfaces.renderkit.html.HtmlCompositeComponentRenderer.encodeEnd(HtmlCompositeComponentRenderer.java:71)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValLazyRendererProxy.encodeEnd(ExtValLazyRendererProxy.java:77)
        at 
org.apache.myfaces.extensions.validator.core.renderkit.ExtValRendererWrapper.encodeEnd(ExtValRendererWrapper.java:359)
        at 
org.apache.myfaces.extensions.validator.generic.renderkit.ExtValGenericRendererWrapper.intercept(ExtValGenericRendererWrapper.java:66)
        at 
org.apache.myfaces.renderkit.html.HtmlCompositeComponentRenderer$$EnhancerByCGLIB$$86055b2c.encodeEnd(<generated>)
        at 
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:665)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:545)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
        at 
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
        at 
org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.renderView(FaceletViewDeclarationLanguage.java:1981)
        at 
org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:285)
        at 
javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:59)
        at 
org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:116)
        at 
org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:241)
        at 
org.apache.myfaces.extensions.validator.core.startup.ExtValLifecycleWrapper.render(ExtValLifecycleWrapper.java:79)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:199)
(rest skipped)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 2
        at 
org.apache.myfaces.extensions.validator.generic.renderkit.ExtValGenericRendererWrapper.intercept(ExtValGenericRendererWrapper.java:58)
        at 
org.richfaces.renderkit.html.PlaceholderRenderer.doEncodeEnd(PlaceholderRenderer.java:77)
        at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:167)
        at 
org.apache.myfaces.extensions.validator.generic.renderkit.ExtValGenericRendererWrapper.intercept(ExtValGenericRendererWrapper.java:80)
        at 
org.richfaces.component.AbstractPlaceholder$PlaceholderParentPreRenderListener.preRenderParent(AbstractPlaceholder.java:135)
        ... 138 more
{code}

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