NPE in JvmErgonomics fails repository plugin tests

[davidkyle]

https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+7.x+third-party-tests-azure/40/console
https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+7.x+third-party-tests-gcs/163/console
https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+7.x+third-party-tests-s3/163/console

Task :plugins:repository-s3:integTestRunner FAILED
...
12:33:45   Exception in thread "main" java.lang.NullPointerException
12:33:45   	at org.elasticsearch.tools.launchers.JvmErgonomics.extractHeapSize(JvmErgonomics.java:122)
12:33:45   	at org.elasticsearch.tools.launchers.JvmErgonomics.choose(JvmErgonomics.java:58)
12:33:45   	at org.elasticsearch.tools.launchers.JvmOptionsParser.main(JvmOptionsParser.java:89)
12:33:45 
12:33:45 FAILURE: Build failed with an exception.

[davidkyle]

Appears to be due to #41962, pinging @jasontedor

[elasticmachine]

Pinging @elastic/es-core-infra

[davidkyle]

I'm not sure on how to label this one, I've gone for the generic core/infra/core

[davidkyle]

Different test, same cause https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+7.x+artifactory/665/console

[jasontedor]

Closed by 7ee5415