Errors in named queries

[Jaypax Ginete]

Came across this error in Tapestry 5.3.3

java.lang.RuntimeException: Exception constructing service 
'ValueEncoderSource': Error invoking service contribution method 
org.apache.tapestry5.hibernate.HibernateModule.contributeValueEncoderSource(MappedConfiguration, 
boolean, HibernateSessionSource, Session, TypeCoercer, PropertyAccess, 
LoggerSource): Exception constructing service 'HibernateSessionSource': 
Error invoking constructor public 
org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): 
Errors in named queries: User.findByIdno

I am using a Glassfish 3.1.2 server since I'm developing using Netbeans 
7.1.1. I access my datasource using JNDI. My JNDI datasource points to a 
MSSQL server. My hibernate config looks like:

    <property name="hibernate.connection.datasource">DBConn</property>
    <property 
name="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</property>
    <property 
name="hibernate.current_session_context_class">thread</property>

    <property name="hibernate.show_sql">true</property>
    <property name="hibernate.format_sql">true</property>

I will get a HTTP 500 when there is an inline @NamedQueries annotation 
in the entity class. The annotation is:

@NamedQueries({
        @NamedQuery(name = "User.findByIdno", query = "SELECT u FROM 
User u WHERE s.id = :id")
)}

The annotation has more named queries.

I call the named query via a DAO facade. The class basically looks like:

    @Inject
    private Session session;

    public Student findUserById(String id) {
        Query q = 
session.getNamedQuery("User.findByIdno")setString("id", id);
        return (User) q.uniqueResult();
    }

I have found some sort of work around with this problem. It involved:

1. Removing the inline @NamedQueries annotation from the entity class.
2. Used a Criteria object to query the user table; HQL also works.

But what's really bothering me is why named queries annotation fail.