Jonathan Lalou's blog

Case

On running a web application hosted on Jetty, I get the following stracktrace:

Nested in org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/classes/config/spring/beans/HibernateSessionFactory.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]:
java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter.<init>(I)V

Unlike what I immediatly thought at first glance, the problem is not induced by the Tuplizer ; the actual error is hidden at the bottom: java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter.

Here are some of the dependencies:

org.hsqldb:hsqldb:jar:2.2.8:compile
org.springframework:spring:jar:2.5.6:compile
org.hibernate:hibernate:jar:3.2.7.ga:compile
javax.transaction:jta:jar:1.0.1B:compile
 |  +- asm:asm-attrs:jar:1.5.3:compile
 |  \- asm:asm:jar:1.5.3:compile

Fix

Main fix

The case is a classic problem of inherited depencencies. To fix it, you have to excluse ASM 1.5.3, and replace it with more recent version. In the pom.xml, you would then have:

    <properties>
        <spring.version>3.1.0.RELEASE</spring.version>
        <hibernate.version>3.2.7.ga</hibernate.version>
        <asm.version>3.1</asm.version>
    </properties>
...
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate</artifactId>
            <version>${hibernate.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>asm</groupId>
                    <artifactId>asm</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>asm</groupId>
                    <artifactId>asm-attrs</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>asm</groupId>
            <artifactId>asm</artifactId>
            <version>${asm.version}</version>
        </dependency>

Other improvements

I took the opportunity to upgrade Spring 2.5 to Spring 3.1 (cf the properties above).
Besides, I modified the *.hbm.xml files to use object types, rather than primary types, eg replacing:

<id name="jonathanId" type="long">

with:

<id name="jonathanId" type="java.lang.Long">