java.lang.IllegalStateException: Converter class br.com.caelum.vraptor.converter.ByteConverter

[surajchhetry]

Hi,
If I add a Post method in controller with parameter I am getting below exception.

@Controller
@Path("/user")
public class UserController {
@Post
@Path("new")
public void submitNew(UserModel user){}
 }

public class UserModel{
    private String name; //getter and setter
    private String userName;//getter and setter
    private String password;//getter and setter
  }

Environments:
JDK : 1.8
Wildfly 10.01

java.lang.IllegalStateException: Converter class br.com.caelum.vraptor.converter.ByteConverter have same priority than class br.com.caelum.vraptor.converter.ByteConverter
com.google.common.base.Preconditions.checkState(Preconditions.java:469)

[Turini]

hey @surajchhetry

this is only happening when you add the post method? I mean, removing it solves completely the problem?

(just trying to understand the unexpected behavior, to reproduce it later)

besides that, could you tell us which vraptor version and plugins you're using?

[surajchhetry]

Hi @Turini , I am using vraptor 4.2.0-RC5 without any plugin.

[mhbpcuiaba]

Hi @Turini , I had the same issue and in my case was the wrong version of paranamer that was lower than 2.7

[Turini]

@mhbpcuiaba yes, it may cause problems -- especially with java 8+

be default VRaptor uses Paranamer 2.8 as a compile dependency.
Do you think we can make it clearer in the dependencies page?

if you wanna help by sending a pull-request, it will be very welcome (;