RFR: JDK-8005263: Logging APIs takes Supplier<String> for message

Henry Jen henry.jen at oracle.com
Fri Dec 21 06:28:08 UTC 2012


This patch adds a couple APIs to java.util.logging.Logger so that
construction of log messages only occurs when it is actually to be
logged by using Supplier<String> instead of String.

Since the idea is to avoid unnecessary construction of log messages,
thus APIs imply formatting are not provided. Thus all forms of logrb and
log with Parameters are not included.

log with Throwable are named to be logEx or logpEx to avoid null
ambiguous as it seems like it's quite common usage with

logger.log(level, null, thrown)

Specdiff and webrev can be found at following,



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