// for arguments, see jtabs
static JTabbedPane jRightTabs(O... x) {
  JTabbedPane tabs = jtabs(x);
  tabs.setTabPlacement(JTabbedPane.RIGHT);
  ret tabs;
}

static JTabbedPane jRightTabs(Collection c) {
  ret jRightTabs(toObjectArray(c));
}