[FIXED HUDSON-6556] bump to xstream-1.3.1-hudson-7,

to accept latest JRockit JVM release as a compatible JVM.


git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@31175 71c3de6d-444a-0410-be80-ed276b4c234a

core/pom.xml

@@ -419,7 +419,7 @@ THE SOFTWARE.
     <dependency>
       <groupId>org.jvnet.hudson</groupId>
       <artifactId>xstream</artifactId>
-      <version>1.3.1-hudson-6</version>
+      <version>1.3.1-hudson-7</version>
     </dependency>
     <dependency>
       <groupId>jfree</groupId>