public static <T> JDOQuery<T> select(Expression<T> expr) {
        return new JDOQuery<Void>().select(expr);
    }
Create a new detached {@link JDOQuery} instance with the given projection

@param expr projection
@param <T>
@return select(expr)
querydsl-jdo/src/main/java/com/querydsl/jdo/JDOExpressions.java