Hi Folks. After several days trying to found a reason to the problem I will describe here I gave up. Maybe someone here had a similar problem or can see WTF I'm doing wrong. I have a seam application and I'm using Ajax4JSF to perform some validations using a4j:support. I took as base the booking example of seam. The problem is when I try to edit a simple entity in a conversation, the entity is a User entity (username, firstname, lastname) and this entity has a @ManyToMany relationship with a Role entity, this relationship is displayed as checkboxes in the page and here I'm using s:convertEntity to make this work. All works fine without a4j:support in the input fields. But, when I add the a4j:support to some field, then the entity is persited in the database every time a a4j request is done (a4j:support onblur). This means every time I press the tab key in the form page I can see something like this in the server console: | Hibernate: update users set password=?, firstname=?, lastname=?, email=?, version=?, country=?, city=?, province=?, street= | ?, enabled=? where username=? and version=? | Hibernate: update users set password=?, firstname=?, lastname=?, email=?, version=?, country=?, city=?, province=?, street= | ?, enabled=? where username=? and version=? | Hibernate: update users set password=?, firstname=?, lastname=?, email=?, version=?, country=?, city=?, province=?, street= | ?, enabled=? where username=? and version=? | Hibernate: update users set password=?, firstname=?, lastname=?, email=?, version=?, country=?, city=?, province=?, street= | ?, enabled=? where username=? and version=? | Hibernate: update users set password=?, firstname=?, lastname=?, email=?, version=?, country=?, city=?, province=?, street= | ?, enabled=? where username=? and version=? | Hibernate: update users set password=?, firstname=?, lastname=?, email=?, version=?, country=?, city=?, province=?, street= | But, I did not press any button or submit the form, and even the action (seam component) is never called. Here is my code: User entity: | | @Entity | @Table(name = "users") | @Name("user") | public class User implements Serializable { | | private static final long serialVersionUID = 1559233654671826129L; | | @Id | @Column(name = "username") | @Length(max = 50) | @NotNull | private String username; | | @Column(name = "password", nullable = false) | @Length(min = 6, max = 200) | @NotNull | private String password; | | | @Column(name = "firstname", nullable = false) | @NotNull | @Length(max = 80) | private String firstName; | | @Column(name = "lastname", nullable = false) | @NotNull | @Length(max = 80) | private String lastName; | | | | @Version | @Column(name = "version") | private long version; | ... | | | @ManyToMany(fetch = FetchType.LAZY) | @JoinTable( | name = "userrole", | joinColumns = @JoinColumn(name = "username"), | inverseJoinColumns = @JoinColumn(name = "name") | ) | @OrderBy("name asc") | private List<Role> roles; | .... | Edit xhtml page: | | <ui:define name="body"> | <h:form id="userForm"> | <h:commandButton action="#{userAction.update}" value="#{messages['Common.save']}" | styleClass="button" /> | | | <a4j:commandButton action="#{userAction.cancel}" value="#{messages['Common.cancel']}" | styleClass="button" immediate="true"/> | </div> | | <rich:panel id="formPanel"> | <f:facet name="header">#{messages['User.edit']}</f:facet> | | <s:decorate id="usernameDecorate" template="/include/viewField.xhtml"> | <ui:define name="label">#{messages['User.username']}</ui:define> | #{user.username} | </s:decorate> | | | <s:decorate id="firstNameDecorate" template="/include/inputField.xhtml"> | <ui:define name="label">#{messages['User.firstName']}</ui:define> | | <h:inputText id="firstName" value="#{user.firstName}" required="true" | maxlength="80" tabindex="4" styleClass="input"> | <a4j:support event="onblur" reRender="firstNameDecorate"/> | </h:inputText> | | </s:decorate> | | | <s:decorate id="lastNameDecorate" template="/include/inputField.xhtml"> | <ui:define name="label">#{messages['User.lastName']}</ui:define> | | <h:inputText id="lastName" value="#{user.lastName}" required="true" | maxlength="80" tabindex="5" styleClass="input"> | <a4j:support event="onblur" reRender="lastNameDecorate"/> | </h:inputText> | | </s:decorate> | | //If I remove below field, all works fine | <s:decorate template="/include/inputField.xhtml"> | <ui:define name="label">#{messages['User.assignRoles']}</ui:define> | <h:selectManyCheckbox value="#{user.roles}" id="userRoles" tabindex="13" styleClass="checkBox"> | <s:selectItems value="#{roleList}" var="role" label="#{messages[role.description]}"/> | <s:convertEntity/> | </h:selectManyCheckbox> | </s:decorate> | | </rich:panel> | | | </h:form> | | | User action component | | @Stateful | @Name("userAction") | @Scope(ScopeType.CONVERSATION) | @Restrict("#{s:hasRole('admin')}") | public class UserAction implements Serializable, IUserAction { | | private static final long serialVersionUID = -8072889837049283608L; | | | | @In | private EntityManager entityManager; | | @In(required = false) | @Out(required = false) | private User user; | | @In | private FacesMessages facesMessages; | | | | @Begin(ifOutcome = "userEdit") | public String select(User selectedUser) { | log.debug("selecting user"); | try { | | user = entityManager.find(User.class, selectedUser.getUsername()); | | user.setConfirmPassword(user.getPassword()); | setOriginalPassword(user.getPassword()); | return "userEdit"; | | } catch (EntityNotFoundException e) { | facesMessages.addFromResourceBundle(FacesMessage.SEVERITY_INFO, | "Common.error.notFound", selectedUser.getFullName()); | return "userList"; | } | } | | | | @End | public String update() { | try { | entityManager.merge(user); | | } catch (OptimisticLockException e) { | user = currentUser; | facesMessages.addFromResourceBundle(FacesMessage.SEVERITY_ERROR, "Common.error.concurrency"); | return null; | } | facesMessages.addFromResourceBundle(FacesMessage.SEVERITY_INFO, | "Common.message.updated", user.getFullName()); | | return "userList"; | } | | | @End | public String cancel() { | return "userList"; | } | | | Maybe you are thinking that this post should be done in Ajax4JSF forum, but I'm not sure about this, because it seems like a em.merge() is done, but I don't know by whom. Anyway I hope you can give some hints in order to solve this problem. Thanks in advance. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4040973#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...