Breaks for example InstrumentTask setup:

<plugin>
    <artifactId>maven-antrun-plugin</artifactId>
    <version>1.7</version>
    <executions>
        <execution>
            <id>instrument</id>
            <phase>process-classes</phase>
            <goals>
                <goal>run</goal>
            </goals>
            <configuration>
                <target>
                    <taskdef name="instrument"
                             classname="org.hibernate.tool.instrument.javassist.InstrumentTask">
                        <classpath>
                            <path refid="maven.dependency.classpath"/>
                        </classpath>
                    </taskdef>
                    <instrument verbose="false">
                        <fileset dir="${project.build.outputDirectory}">
                            <include name="org/jpwh/model/**/*.class"/>
                        </fileset>
                    </instrument>
                </target>
            </configuration>
        </execution>
    </executions>
</plugin>

Dependencies for this before the change:

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>4.3.0.Beta2</version>
    <optional>true</optional>
</dependency>

Now:

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>4.3.0.Beta2</version>
    <optional>true</optional>
</dependency>
<dependency>
    <groupId>org.jboss.logging</groupId>
    <artifactId>jboss-logging</artifactId>
    <version>3.1.0.GA</version>
    <scope>compile</scope>
    <optional>true</optional>
</dependency>
<dependency>
    <groupId>org.jboss.spec.javax.transaction</groupId>
    <artifactId>jboss-transaction-api_1.2_spec</artifactId>
    <version>1.0.0.Alpha1</version>
    <scope>compile</scope>
    <optional>true</optional>
</dependency>
<dependency>
    <groupId>org.javassist</groupId>
    <artifactId>javassist</artifactId>
    <version>3.15.0-GA</version>
    <scope>compile</scope>
    <optional>true</optional>
</dependency>

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