static SingleComponentPanel lambda0Like jOnDemandInQ(Q q, IF0<JComponent> makeComponent) {
  SingleComponentPanel scp = singleComponentPanel();
  bindToComponent(scp, -> {
    if (!scp.isEmpty()) ret;
    
    runInQ(q, -> {
      if (!scp.isEmpty()) ret;

      try {
        var c = makeComponent?!;
        swing {
          if (!scp.isEmpty()) ret;
          scp.setComponent(c);
        }
      } catch print e {
        scp.setComponent(jscroll(jFastLogView_noWrap(renderStackTrace(e)));
      }
    });
  }, null);
  ret scp;
}

Began life as a copy of #1034024