// JsonUnwrapped present in 1.9.9 but not in 1.8.8
Assert.assertNull(jobJar.getJarEntry("org/codehaus/jackson/annotate/JsonUnwrapped.class"));
// When jackson jar is registered, the registered version should be picked up.
pigServer = new PigServer(ExecType.LOCAL, new Properties());
pigServer.registerJar("test/resources/jackson-core-asl-1.9.9.jar");
pigServer.registerJar("test/resources/jackson-mapper-asl-1.9.9.jar");
jobJarFile = Util.createTempFileDelOnExit("Job", ".jar");
fos = new FileOutputStream(jobJarFile);
JarManager.createJar(fos, new HashSet<String>(), pigServer.getPigContext());
jobJar = new JarFile(jobJarFile);