JAVAFX Initialization issue

[ledcryptic]

Hi, Great work you put out here. I am having trouble with this. JavaFX initialization is being interrupted in the headless Docker environment.
The CountDownLatch waiting for JavaFX to start is being interrupted.
This blocks IB Gateway from completing login.
More research says its a known issue with IBGA in Live Trading mode when JavaFX initializes in a headless X11 environment. The error occurs during PlatformImpl.waitForStart(), which prevents the GUI from fully initializing.
This is why login gets stuck at 44% — JavaFX can't complete initialization, so the main window never appears, and IBGA keeps waiting for it. any help will be appreciated.
Just a note that paper trading works so the issue is live trading specific
java.lang.InterruptedException
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1048)
at java.base/java.util.concurrent.CountDownLatch.await(CountDownLatch.java:230)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.waitForStart(PlatformImpl.java:419)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.runLater(PlatformImpl.java:440)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.runLater(PlatformImpl.java:431)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.checkIdle(PlatformImpl.java:549)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.setImplicitExit(PlatformImpl.java:503)
at javafx.graphics/javafx.application.Platform.setImplicitExit(Platform.java:239)
at twslaunch.gstat.j.a(j.java:88)
at twslaunch.gstat.a.d(a.java:219)
at twslaunch.gstat.a.lambda$start$1(a.java:121)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)

[heshiming]

Well, first, the latest version works well. Second, IBG throws a bunch of exceptions ever since the first time I started working on this project. It's only because you are at console, which sees STDERR. It never prevented it to function properly.

My recommendation to you is to run a bare instance of TWS on the same computer. Likely if there's any login task or network problem blocking the login, you'll see.

[ledcryptic]

okay will do that. i had a question about something i saw in the FAQ you put out. Note that if your account is already using IB Key or Printed/Digital Keycode Card, there is currently no way to switch to Mobile Authenticator App (as of November 2024). does this mean i cant use TOTP even if i have it in my docker-compose file? does this mean it wont be possible to have full automation and restart weekly and i have to use ibkey to authenticate daily? thanks for all your help

[heshiming]

That's out of update actually. IBKR allows switching to TOTP for all accounts since the first half of this year. You don't need me to confirm this info with you, once you login (at the web portal), you'll see options to do that.

The project is automating IB Gateway. So if you can login on a bare instance of it, you should be fine.

[ledcryptic]

thanks! i launched TWS and it works fine with both paper and live. paper also works with IBGA. For Live, I can connect to VNC using mobile authenticator but this is the error message once i try to run the bots file:
2025-12-30 16:25:58,621 | WARNING | uni_live | Connect failed on localhost:4000: TimeoutError()
2025-12-30 16:25:58,621 | ERROR | uni_live | API connection failed to localhost on ports [4000]. Is TWS/IBG running, API enabled, and the port correct? Last error: TimeoutError().
The highest its gone to is 64% and i made these changes

1. JavaFX options in ibgateway.vmoptions
   Added -Dprism.order=sw (software rendering)
   Added -Dprism.verbose=false
   Added -Djavafx.animation.fullspeed=true
   Added -Djavafx.animation.pulse=false
   Added -Djavafx.preloader=none
   Added -Djavafx.embed.singleThread=false
   Added -Djdk.gtk.version=3
2. Environment variables in docker-compose.yml
   Added JAVA_TOOL_OPTIONS with JavaFX settings
   Set DISPLAY=:0 explicitly
   3
   These were added while troubleshooting the InterruptedException
   They were in place when the container reached 64%
   The options are in the mounted volume (./run/program), so they persist
   It progressed further than before (past 44% to 64%) but The InterruptedException still occurred, preventing completion
   It’s currently stuck at 28% again as i reverted to the previous code.
   The 64% progress suggests the JavaFX fixes helped, but the underlying issue remains. The InterruptedException occurs during JavaFX platform initialization, which blocks completion even with these options.

[heshiming]

I can't help you debug app side issues. But as far as the example in the readme is concerned, you are supposed to connect to port 4000 (which would be the first 4000 in "4000:4000" in the configuration).

[ledcryptic]

the timeout issue was a port 9000 issue that i figured out from one of the issues someone else had. thanks again