xstream 1.4.7 + jettison 1.0.1 custom bundle // result => "NoClassDefFoundError: java.util.regex.Pattern"

MANIFEST.MF

Manifest-Version: 1.0
Created-By: Brice (by hand)
Build-Jdk: 1.4.2_19
Specification-Title: XStream Core and Jettison
Specification-Vendor: XStream Jettison
Implementation-Title: XStream Core
Implementation-Version: 1.4.7
Implementation-Vendor-Id: com.thoughtworks.xstream
Implementation-Vendor: XStream
Specification-Version: 1.4
X-Build-Os: Windows Vista
X-Build-Time: 
X-Builder: Maven 2.0.11
X-Compile-Source: 1.3
X-Compile-Target: 1.3
Bundle-Author: Brice (by hand)
Bundle-Description: XStream + Jettison 1.4 compliant
Bundle-ManifestVersion: 2
Bundle-Name: CustomJSONXStream
Bundle-PID: com.thoughtworks.xstream.custom
Bundle-SymbolicName: com.thoughtworks.xstream
Bundle-Vendor: com.thoughtworks.xstream
Bundle-Version: 1.4.7
Created-By: Brice Plugin
Export-Package: com.thoughtworks.xstream;version="1.4.7",com.thoughtwork
 s.xstream.converters;version="1.4.7",com.thoughtworks.xstream.core;vers
 ion="1.4.7",com.thoughtworks.xstream.io;version="1.4.7",com.thoughtwork
 s.xstream.mapper;version="1.4.7",com.thoughtworks.persistence;version="
 1.4.7",com.thoughtworks.xstream.security;version="1.4.7",com.thoughtwor
 ks.xstream.converters.basic;version="1.4.7",com.thoughtworks.xstream.co
 nverters.collections;version="1.4.7",com.thoughtworks.xstream.converter
 s.extended;version="1.4.7",com.thoughtworks.xstream.converters.javabean
 ;version="1.4.7",com.thoughtworks.xstream.converters.reflection;version
 ="1.4.7",com.thoughtworks.xstream.io.binary;version="1.4.7",com.thought
 works.xstream.io.copy;version="1.4.7",com.thoughtworks.xstream.io.json;
 version="1.4.7",com.thoughtworks.xstream.io.naming;version="1.4.7",com.
 thoughtworks.xstream.io.path;version="1.4.7",com.thoughtworks.xstream.i
 o.xml;version="1.4.7"

cf xstream-user discussion for details
http://thread.gmane.org/gmane.comp.java.xstream.user/8797