openpty UnsatisfiedLinkError during startup

Expected behavior

No error should occur.

Observed/Actual behavior

During startup, an error occurs in the console:

Starting org.bukkit.craftbukkit.Main
Juli 09, 2026 2:01:27 PM org.jline.terminal.impl.ffm.CLibrary <clinit>
WARNUNG: Unable to find openpty native method in static libraries and unable to load the util library.
        - java.lang.UnsatisfiedLinkError: no util in java.library.path: /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib
[14:01:27 INFO]: [bootstrap] Running Java...
[14:01:27 INFO]: [bootstrap] Loading Paper...

The error is only visible in the console and not within the logs.

Steps/models to reproduce

Start a server on Linux with the latest jdk-25. On Windows the error doesn't occur.

Paper version

Affected versions:
26.1.2-74
26.2-56

Most recent version:
This server is running Paper version 26.2-56-main@8cd4f47 (2026-07-09T08:35:16Z) (Implementing API version 26.2.build.56-alpha)

Other

On 1.21.11 with Java 21, the error didn't occur.
What causes the error? Has it any effects?

Start by reproducing startup on Linux with JDK 25 and compare it with Java 21, using the warning from org.jline.terminal.impl.ffm.CLibrary as the entry point. Determine why openpty cannot be loaded, whether the warning has runtime effects, and what observable behavior confirms the issue is resolved.