Databases
StackOverflow2013
Postsdbo
POCannot pass arguments to a method through EL - javax.el.MethodNotFoundException
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POCannot pass arguments to a method through EL - javax.el.MethodNotFoundException
    primarykey
    data
    text
    <p>Using JSF 2.0 and EL, I am trying to call a method on a POJO which is an attribute of a viewscoped bean. The code is actually very similar to <strong><a href="https://stackoverflow.com/users/157882/balusc">@BalusC</a></strong>'s tutorial <a href="http://balusc.blogspot.com/2011/09/communication-in-jsf-20.html#ProcessingGETRequestParameters" rel="nofollow noreferrer">here</a>. When I call a method that takes no arguments, everything's fine. But when I try to call a method that takes an argument, I get the following exception:</p> <pre><code>javax.faces.el.MethodNotFoundException: javax.el.MethodNotFoundException: /user.xhtml at line 42 and column 32 action="#{users.user.removeFriend(friend)}": Method not found: model.User@67f2b0dd.removeFriend() </code></pre> <p>Here are some more details:</p> <p><strong>user.xhtml</strong></p> <pre><code>&lt;f:metadata&gt; &lt;f:viewParam name="id" value="#{users.id}" /&gt; &lt;f:event type="preRenderView" listener="#{users.init}" /&gt; &lt;/f:metadata&gt; ... &lt;h:form id="usersForm"&gt; &lt;p:outputPanel&gt; &lt;p:dataTable id="userTable" value="#{users.user.friendList}" var="friend"&gt; &lt;p:column&gt; &lt;h:outputText value="#{friend.name}" /&gt; &lt;/p:column&gt; &lt;p:column&gt; &lt;p:commandButton action="#{users.user.removeFriend(friend)}" ajax="true" update="userTable somethingElse" process="@this" onerror="errorDialog.show();" icon="ui-icon-delete" title="delete user"&gt; &lt;/p:commandButton&gt; &lt;/p:column&gt; &lt;/p:dataTable&gt; &lt;/p:outputPanel&gt; &lt;p:commandButton action="#{users.user.removeAllFriends()}" ajax="true" update="userTable somethingElse" process="@this" icon="ui-icon-close" value="delete all friends?"&gt; &lt;/p:commandButton&gt; &lt;/h:form&gt; </code></pre> <p>I have the following <code>ViewScoped</code> bean:</p> <p><strong>Users.java</strong></p> <pre><code>@ManagedBean(name = "users") @ViewScoped public class Users implements Serializable { private static final long serialVersionUID = 1L; private String id; private User user; @ManagedProperty("#{userService}") private UserService userService; // session scoped public void init() { user = userService.getCart(id); } public final String getId() { return id; } public final void setId(String id) { this.id= id; } public final User getUser() { return user; } public final void setUser(User user) { this.user= user; } public final void setUserService(UserService userService) { this.userService = userService; } } </code></pre> <p>The <code>User</code> class - a POJO - has a <code>private List&lt;Friend&gt; friends</code> attribute, with getter and setters and a <code>public</code> method <code>User#removeFriend(Friend f)</code>. It has another <code>public</code> method; <code>User#removeAllFriends()</code>.</p> <p>The page renders fine but I get the exception when I click the "Remove" commandButton next to a user in the table.</p> <p>What's wrong here? Why can I successfully call a parameter-less method but can't pass arguments to another?</p> <p><strong>Edit:</strong> The application is deployed on Tomcat 7.0, if that's any good.</p> <p>Any help appreciated.</p> <p><strong>Update:</strong> As BalusC and Neo pointed, this is an issue with Tomcat 7.0. I installed WebLogic 12.1 and it all worked fine.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCommunity
    1. USMurat Derya Özen
    plurals
    1. PL
      singulars
      1. LTLinked
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COAre you sure there is no EL prior to 2.2 on your classpath?
      singulars
      1. POCannot pass arguments to a method through EL - javax.el.MethodNotFoundException
      1. USmrembisz
    2. COWhat library do `<p:dataTable>`, `<p:commandButton>`, etc come from? I know this works with the standard JSF tags like `<h:dataTable>` and `<h:commandButton>`.
      singulars
      1. POCannot pass arguments to a method through EL - javax.el.MethodNotFoundException
      1. USJeremiah Orr
    3. COThey come from PrimeFaces
      singulars
      1. POCannot pass arguments to a method through EL - javax.el.MethodNotFoundException
      1. USMurat Derya Özen
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload