Calendar now = Calendar.getInstance();
pack.verifyId(true, false);
JcrPackageDefinitionImpl def = (JcrPackageDefinitionImpl) pack.getDefinition();
def.sealForRewrap(now, true);
ExportOptions opts = new ExportOptions();
opts.setMetaInf(def.getMetaInf());
opts.setListener(listener);
opts.setPostProcessor(def.getInjectProcessor());
VaultPackage dst = rewrap(opts, src, (File) null);
// update this content
Node packNode = pack.getNode();