Don't use Java 7 for anything, unless you have no loops in your program

#1

Post by suprgeek » Fri, Jul 29, 2011, 4:29 AM UTC

Don't use Java 7 for anything, unless you have no loops in your program
lucidimagination.com

Re: Don't use Java 7 for anything, unless you have no loops in your program

#2

Post by drivebyacct2 » Fri, Jul 29, 2011, 4:54 AM UTC

This blog format is absurd. Narrow column and a fixed width content in a box guaranteed to be smaller than the content. Plus this is effectively blog spam despite being owned by the same place as the original content: http://www.lucidimagination.com/search/document/1a0d3986e48a...

Re: Don't use Java 7 for anything, unless you have no loops in your program

#3

Post by cageface » Fri, Jul 29, 2011, 4:54 AM UTC

This seems like the sort of thing that should have been caught in automated testing.

Re: Don't use Java 7 for anything, unless you have no loops in your program

#4

Post by perlgeek » Fri, Jul 29, 2011, 5:56 AM UTC

cageface wrote: post #3

This seems like the sort of thing that should have been caught in automated testing.

Also if I were to release a new version of a compiler and VM for a widely used language, I'd try to run some really big projects on top of it and see if they work fine. There's no luck of those in Java world.

Re: Don't use Java 7 for anything, unless you have no loops in your program

#5

Post by jbellis » Fri, Jul 29, 2011, 5:57 AM UTC

Workaround: run with -XX:-UseLoopPredicate. (http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/...)

But yeah, pretty bad bug.

Re: Don't use Java 7 for anything, unless you have no loops in your program

#6

Post by jpr » Fri, Jul 29, 2011, 6:18 AM UTC

Good, loops are just gotos in disguise, and gotos are already banned in Java. This just makes the language more consistent.

Re: Don't use Java 7 for anything, unless you have no loops in your program

#7

Post by firemanx » Fri, Jul 29, 2011, 6:27 AM UTC

This seems fishy to me. I actually got this message as well, and we're evaluating the impact - but this is a tremendously serious and obvious bug to appear in a shipping release of one of the most used softwares on the planet. It just doesn't add up to me.

Does anyone have more details than this message?

Re: Don't use Java 7 for anything, unless you have no loops in your program

#8

Post by jpr » Fri, Jul 29, 2011, 6:42 AM UTC

jpr wrote: post #6

Good, loops are just gotos in disguise, and gotos are already banned in Java. This just makes the language more consistent.

Gah, I didn't remember that Java programmers have no sense of humor.

Re: Don't use Java 7 for anything, unless you have no loops in your program

#9

Post by jamesaguilar » Fri, Jul 29, 2011, 6:52 AM UTC

jpr wrote: post #8

jpr wrote: post #6

Good, loops are just gotos in disguise, and gotos are already banned in Java. This just makes the language more consistent.

Gah, I didn't remember that Java programmers have no sense of humor.

Sometimes our jokes aren't as funny as we think they will be. :(

Re: Don't use Java 7 for anything, unless you have no loops in your program

#10

Post by [deleted] » Fri, Jul 29, 2011, 7:03 AM UTC

[deleted]