Java – JSF Bean Validation Constraints don’t have any effect

bean-validationjavajsf

I couldn't get Java Bean Validation (JSR-303) working. It doesn't give any error and processes the action method. I put one character to "name" inputText, it accepts and process() method gets executed (Size annotation doesn't apply).

When I put one character I expect the My.Process() method to not to be executed, am I not right?
Is there any configuration I overlook to get validation working?

In WEB-INF/lib dir of my project I have validation-api-1.0.0.GA.jar, hibernate-validator-4.2.0.Final.jar.
App Server: Tomcat 7.0.25 (inside Tomcat's Lib folder I have myfaces-api-2.1.5.jar and myfaces-impl-2.1.5.jar).
IDE: Eclipse Helios SR2

I get the message "INFO: MyFaces Bean Validation support disabled" from console, but I have the jars as I specified.

Bean

import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import javax.validation.constraints.Size;

@ManagedBean(name="my")
@RequestScoped
public class MyBean implements Serializable {
  @Size(min=3, message="ERROR")
  private String name;

  public String process() {...}

  ...getters, setters, etc...
}

JSF form

<h:form>
    <h:messages />
    <h:inputText value="#{my.name}" />
    <h:commandButton value="Save" action="#{my.process}" />
</h:form>

I also tried:
@NotEmpty, @NotBlank,
@org.hibernate.validator.constraints.Length(min=3, message="ERROR")
but they don't work too.

Best Answer

I'd like to write a possible problem.

When I had have this variable

private String Name;

Validation didn't work because the getter and setters are like this

private String getName(){}

So I renamed Name to 

private String name;

and it started to validate :)

Probably that was the problem.

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