Groups > comp.lang.java.programmer > #36546

Re: Jigsaw

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From	j4n bur53 <janburse@fastmail.fm>
Newsgroups	comp.lang.java.programmer
Subject	Re: Jigsaw
Date	Fri, 28 Apr 2017 00:43:00 +0200
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Still performance issue:

JDK 8: Total	in 5994	(44 gc) ms
JDK 9: Total	in 9668	(16 gc) ms

Versions used:

java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)

java version "9-ea"
Java(TM) SE Runtime Environment (build 9-ea+167)
Java HotSpot(TM) 64-Bit Server VM (build 9-ea+167, mixed mode)

j4n bur53 schrieb:
> My first experience with JDK 9:
>
> The following code didn't work anymore:
>
>         if (UIManager.getLookAndFeel() instanceof WindowsLookAndFeel) {
>
> On a windows machine it barked that I am not allowed
> to access the class WindowsLookAndFeel.
>
> I did the following workaround:
>
>         if (LAF_ID.equals(UIManager.getLookAndFeel().getID())) {
>
> I have mixed feelings towards JDK 9. It also
> run 50% slower than JDK 8. I was running my usual
> benchmark all of them were significantly slower.
>
> I did these tests 2-3 months ago, maybe the
> performance problem is now fixed. Dunno.
>
> Stefan Ram schrieb:
>>   No, my post is not about Scott Stark's blog entry,
>>   but rather about this sentence:
>>
>>       »The previously monolithic runtime library rt.jar is
>>       now split up in Java 9.«
>>       ¯¯¯¯¯¯¯¯¯¯¯¯
>>   Didn't I hear that some years before? Wait!
>>   Yes - here it is:
>>
>>       »Java SE 6 Update 10 consists of several technologies
>>       that improve the user experience related to installing
>>       the JRE, and to deploying and running rich-client Java
>>       (and JavaFX) programs: · Java Kernel Online Installer
>>       - The JRE is now divided into small bundles.«.
>>                    ¯¯¯¯¯¯¯¯¯¯¯
>>
>

Thread

Re: Jigsaw j4n bur53 <janburse@fastmail.fm> - 2017-04-28 00:26 +0200
  Re: Jigsaw j4n bur53 <janburse@fastmail.fm> - 2017-04-28 00:43 +0200
    Re: Jigsaw j4n bur53 <janburse@fastmail.fm> - 2017-04-28 00:52 +0200
    Re: Jigsaw Arne Vajhøj <arne@vajhoej.dk> - 2017-04-27 21:27 -0400
      Re: Jigsaw j4n bur53 <janburse@fastmail.fm> - 2017-04-28 12:30 +0200
        Re: Jigsaw Arne Vajhøj <arne@vajhoej.dk> - 2017-04-28 08:18 -0400
      Re: Jigsaw v_borchert@despammed.com (Volker Borchert) - 2017-04-28 20:01 +0000
        Re: Jigsaw Arne Vajhøj <arne@vajhoej.dk> - 2017-04-28 19:20 -0400
  Re: Jigsaw Arne Vajhøj <arne@vajhoej.dk> - 2017-04-27 21:07 -0400

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