1. Java compatibility mismatch (first screenshot)
geh/data/ViewException was compiled for Java 25 (class file version 69.0), but the runtime executing Katalon supports up to Java 21 (65.0). That run is therefore not using Java 17.
• Ask the owner of the JAR containing geh.data.ViewException to rebuild it for the supported execution runtime—e.g. Java 21 with --release 21 if it uses no newer APIs—and replace the incompatible JAR in the project.
• Check Java from inside the running Katalon test, not just java -version in a terminal:
groovy
println System.getProperty('java.version')
println System.getProperty('java.home')
Changing system Java does not necessarily change the runtime Katalon launches. Don’t switch Katalon to Java 25 without confirming that version is supported.
2. Missing SSH private-key file (second screenshot)
The root error is FileNotFoundException: ssh.pem (The system cannot find the file specified), at LinuxCommand.groovy:161, called by getNodes:6.
• Check the path passed to JSch.addIdentity(...). A relative path such as ssh.pem is resolved against the execution process’s working directory, not necessarily the script’s folder.
• Point it to the correct existing private-key file (prefer a configured absolute path), and ensure the account running Katalon can read it. On a remote/CI runner, the key must be provisioned there securely too. Do not upload the private key here.
Could you share the addIdentity(...) line with sensitive details redacted, plus the Java version/home printed inside Katalon? Those will help confirm the exact changes needed.