Azul JDK 21 problem with Webkit browser

[Graham Norris]

There is a problem with one Azul JDK+FX version, which causes Java to crash if you try to use the WebKit HTML Browser for the Browser window style in Polarbar.

The affected version is Zulu21.50+19-CA, build 21.0.11+10LTS.

For details see:

https://github.com/zulu-openjdk/zulu-openjdk/issues/348

No Polabar fix is required (or possible,) just use any other Java version than this particular Azul one! I can confirm that current (as of the date of this mesage) Azul JDK+FX 8 and Azul JDK+FX 25 are ok.

[WildWilly]

Here's another data point.  I've been running this for a couple of years:

2026-06-27 11:09:36,510 INFO  [jstreet] Starting The Polarbar Mailer (1.27 CI-799 build 2329)
2026-06-27 11:09:36,512 INFO  [jstreet] Running under Oracle Corporation Java 18 (18.0).
2026-06-27 11:09:36,513 INFO  [jstreet] Java VM name OpenJDK 64-Bit Server VM, OS 'Windows 11' version '10.0'.
2026-06-27 11:09:36,664 INFO  [jstreet] Using Java FX version 17.0.8

Java -version returns this:

openjdk version "18" 2022-03-22
OpenJDK Runtime Environment (build 18+36-2087)
OpenJDK 64-Bit Server VM (build 18+36-2087, mixed mode, sharing)

I have no plans to change any of this . . . unless & until a new PBM is birthed.

[Carl Miller]

well, I knew the itch would return so today I started down the path to get back to work on this FX port. One thing motivating me is at work we are doing a bunch with AI so I watched a video that was a guide to Claude (https://www.youtube.com/watch?v=jdbOVepEtUE) I know it's long but it's a tutorial... in any case I started setting up Claude desktop to point it at pbm 2.x and see if it'll help in terms of completing the work that is remaining... we'll see...the video claims it's like having a team of 5 people, that would help a lot...

Carl

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[Carl Miller]

It already found issues just reading the code 👍

Comment out Test.java — it's clearly test/debug code
Remove the hardcoded path at Test.java:141
Keep mailer.java as the single Application entry point
Add null checks for switchAccountListeners before use
Add bounds checking to the while loop in switchAccount()
Want me to apply these fixes so you can run it?

Carl