[jboss-jira] [JBoss JIRA] (WFLY-13691) Ajax call causes exception: Target Unreachable, 'null' returned null

[Farah Juma (Jira)]

     [ https://issues.redhat.com/browse/WFLY-13691?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Farah Juma reassigned WFLY-13691:
---------------------------------

    Assignee:     (was: Farah Juma)


> Ajax call causes exception: Target Unreachable, 'null' returned null
> --------------------------------------------------------------------
>
>                 Key: WFLY-13691
>                 URL: https://issues.redhat.com/browse/WFLY-13691
>             Project: WildFly
>          Issue Type: Bug
>          Components: JSF
>    Affects Versions: 20.0.1.Final
>            Reporter: erick leal
>            Priority: Major
>
> I still have a problem with JSF 2.3 related to ViewParam, I tested it with WildFly 20.0.1 and the bug is still there. I tried to reduce the code, but I was only able to simulate the error using PrimeFaces. The code is in the repository [https://github.com/erickdeoliveiraleal/primefaces-test/tree/viewparam]
>  Note that Wildfly already incorporated all the fixes recently done by [@soul2zimate|https://github.com/soul2zimate]
> When you click on button the second time a exception happens, this is not the case when using mojarra 2.2, myfaces 2.2 or myfaces 2.3
> XHTML:
>  
> {code:java}
> <f:metadata> <f:viewParam id="id" name="id" value="#{testView.testClass.id}" /> </f:metadata> <h:form> <p:commandButton update="@form" /> <p:dataTable var="m" selectionMode="single" selection="#{testView.testClass}" rowKey="#{m.id}" value="#{testView.testClasses}"> </p:dataTable> </h:form>{code}
> beans
> {code:java}
>  import java.io.Serializable; import java.util.List; import javax.annotation.PostConstruct; import javax.faces.view.ViewScoped; import javax.inject.Named; @Named @ViewScoped public class TestView implements Serializable { private TestClass testClass; private List<TestClass> testClasses; @PostConstruct public void init() { testClass = new TestClass(); } public TestClass getTestClass() { return testClass; } public void setTestClass(TestClass testClass) { this.testClass = testClass; } public List<TestClass> getTestClasses() { return testClasses; } public void setTestClasses(List<TestClass> testClasses) { this.testClasses = testClasses; } }{code}
> model
> {code:java}
>  public class TestClass { Integer id; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } }{code}
> You also need to set in web.xml the following param 
> {code:java}
> <context-param> <param-name>javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL</param-name> <param-value>true</param-value> </context-param>{code}



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