JRE/JDK 11 malfunctions on aarch64
openjdk11 does not work properly on aarch64 platform.
It stuck randomly, seemingly related to network functions.
I observe the issue while trying to port Bazel to Alpine Linux (!22578 (merged)).
Very interestingly, checks have been disabled on the platform for a long while due to "These get stuck on the builders :/". (b039d101)
openjdk13 is the first version that does not "stuck".
openjdk8 probably works as well given that the old Bazel aport uses it, and there was a successful aarch64 Bazel build.
Further investigation is needed, but here is all the info I have at the moment.