GWT 2.4: “An internal compiler exception occurred”

Question

It's been about 5 hrs since I decided to use JSR 303 Bean Validation in my GWT project and I gotta say I can't even express (politely) how deeply unsatisfied I am with lame documentation on the subject on Google's website.

I really hope you guys can help me.

I followed this blog post to add client-side bean validation to my project. Unfortunately it worked only once and threw an exception in runtime saying that I need to add Hibernate Validation sources to class path. I fixed that and decided to remassage my dependencies a little too (biggest mistake of my life) but I couldn't make it work ever again.

I can't play with Validation sample from GWT SDK either because it's uncompilable because it has two implementations of class ServerValidator. Weird.

So to simplify my question I created dummy GWT application using project wizard of IntelliJ IDEA.

I added following elements to module xml:

<inherits name="org.hibernate.validator.HibernateValidator"/>
<replace-with class="com.mySampleApplication.client.ClientValidatorFactory">
    <when-type-is class="javax.validation.ValidatorFactory"/>
</replace-with>

Created ClientValidatorFactory:

package com.mySampleApplication.client;

import com.google.gwt.core.client.GWT;
import com.google.gwt.validation.client.AbstractGwtValidatorFactory;
import com.google.gwt.validation.client.GwtValidation;
import com.google.gwt.validation.client.impl.AbstractGwtValidator;

import javax.validation.Validator;
import javax.validation.groups.Default;

public class ClientValidatorFactory extends AbstractGwtValidatorFactory
{
    @GwtValidation(value = {Organization.class}, groups = {Default.class, ClientGroup.class})
    public interface GwtValidator extends Validator
    {
    }

    @Override
    public AbstractGwtValidator createValidator()
    {
        return GWT.create(GwtValidator.class);
    }
}

And in onModuleLoad() method I added this single line which causes compiler to blow up

Validator validator = Validation.buildDefaultValidatorFactory().getValidator();

And finally I used following jars which I copied from Validation sample of GWT SDK.

hibernate-validator-4.1.0.Final-sources.jar
hibernate-validator-4.1.0.Final.jar
log4j-1.2.16.jar
slf4j-api-1.6.1.jar
slf4j-log4j12-1.6.1.jar
validation-api-1.0.0.GA-sources.jar
validation-api-1.0.0.GA.jar

But when I compile my project it gives following meaningless error:

In detailed GWT compiler log I see this:

Loaded 2315 units from persistent store.
   Found 2282 cached units.  Used 2282 / 2282 units from cache.
   Added 0 units to persistent cache.
   Validating newly compiled units
      Errors in 'jar:file:/C:/work/externals/gwt/gwt-user.jar!/org/hibernate/validator/engine/ConstraintViolationImpl_CustomFieldSerializer.java'
         Line 33: No source code is available for type org.hibernate.validator.engine.ConstraintViolationImpl<T>; did you forget to inherit a required module?
      Errors in 'jar:file:/C:/work/externals/gwt/gwt-user.jar!/org/hibernate/validator/engine/ValidationSupport.java'
         Line 43: No source code is available for type org.hibernate.validator.engine.ConstraintViolationImpl<T>; did you forget to inherit a required module?
      Errors in 'jar:file:/C:/work/externals/gwt/gwt-user.jar!/org/hibernate/validator/super/org/hibernate/validator/constraints/impl/EmailValidator.java'
         Line 25: No source code is available for type org.hibernate.validator.constraints.Email; did you forget to inherit a required module?
      Errors in 'jar:file:/C:/work/externals/gwt/gwt-user.jar!/org/hibernate/validator/super/org/hibernate/validator/constraints/impl/ScriptAssertValidator.java'
         Line 26: No source code is available for type org.hibernate.validator.constraints.Email; did you forget to inherit a required module?
      Errors in 'jar:file:/C:/work/externals/gwt/gwt-user.jar!/org/hibernate/validator/super/org/hibernate/validator/constraints/impl/URLValidator.java'
         Line 26: No source code is available for type org.hibernate.validator.constraints.URL; did you forget to inherit a required module?
      Errors in 'jar:file:/C:/work/externals/gwt/gwt-user.jar!/org/hibernate/validator/super/org/hibernate/validator/engine/PathImpl.java'
         Line 72: No source code is available for type org.hibernate.validator.engine.NodeImpl; did you forget to inherit a required module?

Why can't it find classses? I have hibernate-validator-4.1.0.Final-sources.jar in my classpath.

Any thoughts ?

I uploaded my project here if you guys want to play with it.

Answer 1

Case closed, guys. Error was caused by lack of hibernate validation sources in classpath because of bug in IntelliJ IDEA. Details are here.