Bug#925928: tomcat9: Error occurred during initialization of VM: Option -XX:+UseG1GC not supported

[Thorsten Glaser]

Emmanuel Bourg dixit:

>Indeed, but running Tomcat on Zero is not a good idea anyway.

;-)

In the end, we give users rope. Whether they hang themselves
with it or use it to climb a rock is up to them. (Having the
*ability* to do it, even if it's not *generally* a good idea,
may be worth something. For some use cases, speed might not
matter as much.)

>G1 is the default GC pour Java 9+, so the command line option is only
>really useful for Java 8.

Ah, okay. And the default will be 11 in buster anyway.

>openjdk-11-jre-zero is currently available for amd64, i386, arm64,
>armhf, ppc64, ppc64el, s390x and sparc64. So Zero is the default VM
>for alpha, armel, m68k, mips*, sh4 and x32.

OK, and armel and mips are release architectures at least.
Otherwise this could have easily waited until after JRE 8
was removed.

>Let's remove the -XX:+UseG1GC option, with a comment in the template
>file suggesting to use a better GC if running with Java 8.

OK, will do.

Thanks,
//mirabilos
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