ERROR UIManager does not support color key 'Label.disabledForeground'

[Former user]

Every time I start latest JMeter 5 with WebSocket Samplers by Peter Doornbosch plugin

I get twice error in log:

ERROR e.l.j.w.GuiUtils: UIManager does not support color key 'Label.disabledForeground'

[Peter Doornbosch]

I cannot reproduce this. Which JVM are you using?

[Peter Doornbosch]

No response for more than a month....

[Frédéric Girard]

Hello, I can reproduce the bug using JMeter 5.4.1 on OpenJDK8U-jdk_x64_windows_hotspot_8u292b10.

You can find it here : https://adoptopenjdk.net/index.html?variant=openjdk8&jvmVariant=hotspot

[Peter Doornbosch]

LOL, JDK 8? Seriously? You want me to spend time on a bug that occurs on JDK8?

[Frédéric Girard]

…

Most java users still use JDK8.

[Peter Doornbosch]

Ok, let me explain. This is an open source project that i created and maintain in my spare time. I have spent numerous ours an it, creating a product that you can use free of charge.

Now let me ask again: do you really want me to spend time on a bug that occurs on JDK8? If this bug is important for you, why don’t you spend effort to run JMeter on JDK11 or later?

Cheers,
Peter

[Frédéric Girard]

And why not JDK16 ? When working for a company you work with the ressources at your disposal. Some companies are using JDK9+, but most of them still use the JDK8.

I come here to report to you a bug affecting your plugin. If you don’t want to support your product, or support only bugs interesting you, it’s up to you.

There’s another websocket plugin.

[Peter Doornbosch]

Ok, let me be fair: i should have started with a thank you for reporting, for sharing information with me about the bug.

I think in most cases, even when a company uses an old JDK for their products, users of JMeter can easily use a newer JDK.

Indeed, i have to make choices how to spend my time. As a said, it’s my spare time and that is finite. I think i support this plugin pretty well, major bugs are usually being fixed quite fast. If you find a fix for this issue yourself, i would be happy to merge it.

Cheers
Peter