IBM Websphere 8.5 bean validation issue in JAX-RS resources - jax-rs

Question

Here is the example of the code that I use:
#Stateless
#Path("/rest")
public class MyResouce{
#POST
#Path("/test")
public Response test(#Valid Test t){
return Response.ok().build();
}
}
public class Test {
#Size(max = 3)
private String val;
public String getVal() {
return val;
}
public void setVal(String val) {
this.val = val;
}
}
I expect a ValidationException when I pass an invalid object (length of val more than 3) but the exception doesn't occur. When I inject the validator and to do validation programmatically:
#Path("/rest")
public class MyResouce{
#Resource
private Validator validator;
#POST
#Path("/test")
public Response test(#Valid Test t){
Set<ConstraintViolation<Test>> violations = validator.validate(t); // size = 1, means t object is invalid
return Response.ok().build();
}
}
the result of the validation has 1 ConstraintViolation item that means the object is invalid and it looks like the annotation #Valid is ignored. How to validate objects non programmatically?
Here is my validation.xml descriptor:
<?xml version="1.0" encoding="UTF-8"?>
<validation-config
xmlns="http://jboss.org/xml/ns/javax/validation/configuration"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://jboss.org/xml/ns/javax/validation/configuration validation-configuration-1.0.xsd">
</validation-config>
Websphere version 8.5.5.11, JAX-RS 1.1

Answer 1

JAX-RS 1.1 does not automatically integrate with Bean Validation, so you would be required to perform your own validation (as you did in your second example).
JAX-RS 2.0 (available in WebSphere v9) or 2.1 (available in WebSphere Liberty) both support automatic integration with bean validation. You can find more info on this post.
Hope this helps, Andy