I know everyone has had bad experiences w/ Java 1.6.0_18 and was
sticking with JVM releases they trusted, but the set of security patches
that have come out with the _19 release change the situation. There are
enough server-side vulnerabilities there to make upgrading something to
consider if you are working with untrusted data.
Has anyone tried the latest release at scale and got any good/bad
experiences to share?
One interesting feature is it does actually disable Escape Analysis,
which I believe was one of the troublespots. When I start a JVM with the
following options
-XX:+UseCompressedOops
-XX:+DoEscapeAnalysis
-XX:+UseParallelGC
-XX:+AggressiveOpts
On
java version "1.6.0_19"
Java(TM) SE Runtime Environment (build 1.6.0_19-b04)
Java HotSpot(TM) 64-Bit Server VM (build 16.2-b04, mixed mode)
I get told off:
Java HotSpot(TM) 64-Bit Server VM warning: Escape Analysis is disabled
in this release.
Was it Escape Analysis that was hurting people in the _18 version?
-steve
