Not correctly using architecture.

Please attach a log

Hello,

As you can see in the log, I've deleted the library that was not using the correct architecture.

It looks that there is a problem while parsing.

 
"downloads": {
                "classifiers": {
                    "natives-osx": {
                        "path": "tv/twitch/twitch-platform/6.5/twitch-platform-6.5-natives-osx.jar",
                        "sha1": "5f9d1ee26257b3a33f0ca06fed335ef462af659f",
                        "size": 455359,
                        "url": "https://libraries.minecraft.net/tv/twitch/twitch-platform/6.5/twitch-platform-6.5-natives-osx.jar"
                    },
                    "natives-windows-32": {
                        "path": "tv/twitch/twitch-platform/6.5/twitch-platform-6.5-natives-windows-32.jar",
                        "sha1": "206c4ccaecdbcfd2a1631150c69a97bbc9c20c11",
                        "size": 474225,
                        "url": "https://libraries.minecraft.net/tv/twitch/twitch-platform/6.5/twitch-platform-6.5-natives-windows-32.jar"
                    },
                    "natives-windows-64": {
                        "path": "tv/twitch/twitch-platform/6.5/twitch-platform-6.5-natives-windows-64.jar",
                        "sha1": "9fdd0fd5aed0817063dcf95b69349a171f447ebd",
                        "size": 580098,
                        "url": "https://libraries.minecraft.net/tv/twitch/twitch-platform/6.5/twitch-platform-6.5-natives-windows-64.jar"
                    }
                }
            }
In this piece of manifest of Minecraft 1.8.9, we can see that there is three categories of downloads.
natives-osx, natives-windows-32 and natives-windows-64.
But the problem is: the launcher doesn't respects the platform, and choose to download natives-windows-32 instead of natives-windows-64.
 
I hope I have correctly answered your request.
Have a nice day.

That's not a parsing problem,

It's doing the same with a parameter only for x86 architecture.

The parameter -Xss1M should be included only on x86 architecture as showed by the rule:
            {
                "rules": [
                    {
                        "action": "allow",
                        "os": {
                            "arch": "x86"
                        }
                    }
                ],
                "value": "-Xss1M"
            }
 
[Info: 2021-05-23 17:05:10.6442246: ClientStarter.cpp(904)] Java argument:-Xss1M
But, In the log, we can see:

[Info: 2021-05-29 16:57:39.8812304: Common.cpp(41)] x64: true
So, the Launcher doesn't recognise correctly the system architecture !

So, the Launcher just don't use this value.

Hi there!

Can you give us some in-depth repro steps?
Also what is Twitch natives?

This ticket will automatically reopen when you reply.

Hello,

Here are the in-depth reproduction steps:

1. Install Minecraft Launcher for Minecraft Java Edition

2. Log in with your Microsoft/Mojang account

3. Go to configurations

4. Click New Configuration

5. Enter as name: Minecraft 1.8.9

6. Select the icon: Cake

7. Select version: 1.8.9

8. Go to JVM arguments: change -Xmx2G to -Xmx4G

9. Press Create

10. Navigate to Play Tab

11. Press the Play button

12. Check I understand risks

13. And press play

14. Wait for it to download the game...

15. Press quit game.

NOTE: Certains of these elements are certainly useless because I'm saying what I'm exactly doing.

And I notice that this bug is fixed in the last version, as it now downloads the x64 version instead of the x86 version !

Have a nice day.

Closing as cannot reproduce per reporters comment.