docs: private static void triggerGc(Integer pid) {
  		VirtualMachine vm = null;
  		try {
  			vm = VirtualMachine.attach(String.valueOf(pid));
  			HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
  			try (InputStream in = hvm.executeJCmd("GC.run");) {
  				byte b[] = new byte[256];
  				int n;
  				do {
  					n = in.read(b);
  					if (n > 0) {
  						String s = new String(b, 0, n, "UTF-8");
  						tty.print(s);
  					}
  				} while (n > 0);
  				tty.println();
  			}
  		} catch (Exception e) {
  			tty.println(e.getMessage());
  		} finally {
  			if (vm != null) {
  				try {
  					vm.detach();
  				} catch (IOException e) {
  					tty.println(e.getMessage());
  				}
  			}
  		}
  	}