markusthoemmes commented on issue #3504: use alpine-java base image (alpine 3.7 + oracle 8u162b12_server-jre) URL: https://github.com/apache/incubator-openwhisk/pull/3504#issuecomment-384873181 Fram what I've read about J9 it's a different JVM. That would mean we switch from Hotspot to J9. I'd say we should delay this to a different discussion because I think it's orthogonal? The intend for this was to switch to a prebuilt Oracle JDK image. Moving to OpenJDK imho is change enough for one PR. We need to be careful here, it's our core components. OpenJDK should at least also have the Hotspot VM in it, we should be good there performancewise. If we want to switch to OpenJ9, we'll need a performance-comparison of **our** components and see if we gain anything by that. So my vote is: Stay Oracle/OpenJDK in this PR. Does that make sense?
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