JEP proposed to target JDK 11: 318: Epsilon: An Arbitrarily Low-Overhead Garbage Collector (original) (raw)

Andrew Dinn adinn at redhat.com
Thu Jan 18 10:15:08 UTC 2018

On 18/01/18 10:10, Erik Österlund wrote:

I do not feel too comfortable with this being a product flag regardless of the name. There is existing code that assumes that for example System.gc() will actually do something. Similar for assumptions that language features like finalizers and reference objects and queues will do anything at all. That makes me feel uncomfortable. Do you feel comfortable with exposing a product flag that breaks code relying on those features?

Honestly, if we are at the point where we need to cater for those who pass in -XX:+UseNoGC and still expect "System.gc() will actually do something" the I believe all hope for civilization is a faint and distant pipe dream.

Have we not bike-shedded this JEP enough already?

regards,

Andrew Dinn

Senior Principal Software Engineer Red Hat UK Ltd Registered in England and Wales under Company Registration No. 03798903 Directors: Michael Cunningham, Michael ("Mike") O'Neill, Eric Shander

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