Snapshots

[libschmudie-so]

Snapshots are not working in the newest version!

[18:12:47  INFO]: [JSONReader] Reading JSON-File: C:\Users\User\AppData\Roaming\.minecraft\versions\18w14b\18w14b.json
[18:12:47 DEBUG]: [JSONReader] Version ID: 18w14b
[18:12:47 DEBUG]: [JSONReader] Version Time: 2018-04-05T14:45:31+00:00
[18:12:47 DEBUG]: [JSONReader] Version Release Time: 2018-04-05T14:44:02+00:00
[18:12:47 DEBUG]: [JSONReader] Version type: snapshot
[18:12:47 DEBUG]: [JSONReader] Version Assets: 1.13
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
        at de.craften.craftenlauncher.logic.json.JSONReader.readJsonFileFromSelectedVersion(JSONReader.java:44)
        at de.craften.craftenlauncher.logic.download.DownloadService.setMinecraftVersion(DownloadService.java:177)
        at de.craften.craftenlauncher.logic.download.DownloadService.setMinecraftVersion(DownloadService.java:189)
        at de.craften.craftenlauncher.logic.LogicController.startDownloadService(LogicController.java:198)
        at de.craften.craftenlauncher.logic.LogicController.authenticateUser(LogicController.java:165)
        at de.craften.craftenlauncher.logic.Facade.authenticateUser(Facade.java:109)
        at de.craften.craftenlauncher.gui.MainController.performLogin(MainController.java:59)
        at de.craften.craftenlauncher.gui.MainController.openMainWindow(MainController.java:46)
        at de.craften.craftenlauncher.Application$1.run(Application.java:74)
        at java.awt.event.InvocationEvent.dispatch(Unknown Source)
        at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
        at java.awt.EventQueue.access$500(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)

[leMaik]

Looks like they changed something about the JSON format. 🤔

[libschmudie-so]

It seems like they changed the way arguments are stored.

18w14b

"arguments": {
        "game": [
            "--username",
            "${auth_player_name}",
            "--version",
            "${version_name}",
            "--gameDir",
            "${game_directory}",
            "--assetsDir",
            "${assets_root}",
            "--assetIndex",
            "${assets_index_name}",
            "--uuid",
            "${auth_uuid}",
            "--accessToken",
            "${auth_access_token}",
            "--userType",
            "${user_type}",
            "--versionType",
            "${version_type}",
            {
                "rules": [
                    {
                        "action": "allow",
                        "features": {
                            "is_demo_user": true
                        }
                    }
                ],
                "value": "--demo"
            },
            {
                "rules": [
                    {
                        "action": "allow",
                        "features": {
                            "has_custom_resolution": true
                        }
                    }
                ],
                "value": [
                    "--width",
                    "${resolution_width}",
                    "--height",
                    "${resolution_height}"
                ]
            }
        ],
        "jvm": [
            {
                "rules": [
                    {
                        "action": "allow",
                        "os": {
                            "name": "osx"
                        }
                    }
                ],
                "value": [
                    "-XstartOnFirstThread"
                ]
            },
            {
                "rules": [
                    {
                        "action": "allow",
                        "os": {
                            "name": "windows"
                        }
                    }
                ],
                "value": "-XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump"
            },
            {
                "rules": [
                    {
                        "action": "allow",
                        "os": {
                            "name": "windows",
                            "version": "^10\\."
                        }
                    }
                ],
                "value": [
                    "-Dos.name=Windows 10",
                    "-Dos.version=10.0"
                ]
            },
            "-Djava.library.path=${natives_directory}",
            "-Dminecraft.launcher.brand=${launcher_name}",
            "-Dminecraft.launcher.version=${launcher_version}",
            "-cp",
            "${classpath}"
        ]
    },

1.12.2

"minecraftArguments": "--username ${auth_player_name} --version ${version_name} --gameDir ${game_directory} --assetsDir ${assets_root} --assetIndex ${assets_index_name} --uuid ${auth_uuid} --accessToken ${auth_access_token} --userType ${user_type} --versionType ${version_type}",

[leMaik]

@Craft4Cube Glad you found the root of this issue. PR welcome 😉