picocli: Loading CommandLine$DefaultFactory fails on Windows?!

Hi!

I just created the following issue at https://bugs.openjdk.java.net/browse/JDK-8234076 to determine the underlying cause of a Windows-only fatal error when launching JUnit 5’s Console Launcher. That in turn uses Picocli version 4.0.2, I guess.

Sometimes(!) a run either crashes silently or creates a hs_err_pid...log file and the last class that was loaded is:

[0.278s][info][class,load] org.junit.platform.console.shadow.picocli.CommandLine$IExecutionExceptionHandler source: file:/.../lib/org.junit.platform.console-1.6.0-M1.jar

Sometimes(!) the run continues with CommandLine$DefaultFactory and the entire program execution succeeds.

[0.231s][info][class,load] org.junit.platform.console.shadow.picocli.CommandLine$DefaultFactory source: file:/.../lib/org.junit.platform.console-1.6.0-M1.jar

Could this be related to #794?

Reproduction

• Clone https://github.com/sormuras/bach-air - and switch to branch JDK-8234076.
• Call java src\bach\Build.java. Sometimes it runs, sometimes not.

CI

• Java 11 https://github.com/sormuras/bach-air/runs/300828140
• Java 13 https://github.com/sormuras/bach-air/runs/300828148