Hello, I've just made a DEEP debugging and the problem is that customDateTime value is being binded through org.hibernate.type.descriptor.sql.VarbinaryTypeDescriptor#getBinder(), which returns a org.hibernate.type.descriptor.sql.BasicBinder implementation which is like this:

BasicBinder<X>(javaTypeDescriptor, this) {
    protected void doBind(PreparedStatement st, X value, int index, WrapperOptions options) throws SQLException {
        st.setBytes(index, (byte[])javaTypeDescriptor.unwrap(value, byte[].class, options));
    }

    protected void doBind(CallableStatement st, X value, String name, WrapperOptions options) throws SQLException {
        st.setBytes(name, (byte[])javaTypeDescriptor.unwrap(value, byte[].class, options));
    }
};

As you can see, the binder assigns a byte array and then it cannot parse it to a DateTime. I'm kind of newbie as a contributor and I don't understand it quite well how the binder is assigned to the column value, can someone explain it better? I mean how it's managed internally, not at a user level.

I will make some further research to see how it differs the process between creationDate and customDateTime