Error on 1.19.4 Purpur

[itsDanny5555]

Hey!

I tried to install the plugin, on my velocity it works fine, but this addon wont start up correctly, it throws multiple errors:

[20:06:58] [Server thread/INFO]: Starting minecraft server version 1.19.4
[20:06:58] [Server thread/INFO]: Loading properties
[20:06:58] [Server thread/INFO]: This server is running Purpur version git-Purpur-1985 (MC: 1.19.4) (Implementing API version 1.19.4-R0.1-SNAPSHOT) (Git: 6886272 on HEAD)
[20:06:58] [Server thread/INFO]: Server Ping Player Sample Count: 12
[20:06:58] [Server thread/INFO]: Using 4 threads for Netty based IO
[20:06:58] [Server thread/INFO]: [ChunkTaskScheduler] Chunk system is using 1 I/O threads, 8 worker threads, and gen parallelism of 8 threads
[20:06:59] [Server thread/WARN]: [Pufferfish] Will not enable SIMD! These optimizations are only safely supported on Java 17, Java 18, and Java 19.
[20:06:59] [Server thread/INFO]: Default game type: SURVIVAL
[20:06:59] [Server thread/INFO]: Generating keypair
[20:06:59] [Server thread/INFO]: Starting Minecraft server on 0.0.0.0:25566
[20:06:59] [Server thread/INFO]: Using default channel type
[20:06:59] [Server thread/INFO]: Paper: Using Java compression from Velocity.
[20:06:59] [Server thread/INFO]: Paper: Using Java cipher from Velocity.
[20:06:59] [Server thread/ERROR]: Fatal error trying to convert PlaytimeLink v1.6:_1ms/playtimelink/Main.class
java.lang.IllegalArgumentException: Unsupported class file major version 65
at org.objectweb.asm.ClassReader.(ClassReader.java:199) ~[asm-9.4.jar:9.4]
at org.objectweb.asm.ClassReader.(ClassReader.java:180) ~[asm-9.4.jar:9.4]
at org.objectweb.asm.ClassReader.(ClassReader.java:166) ~[asm-9.4.jar:9.4]
at org.bukkit.craftbukkit.v1_19_R3.util.Commodore.convert(Commodore.java:171) ~[purpur-1.19.4.jar:git-Purpur-1985]
at org.bukkit.craftbukkit.v1_19_R3.util.CraftMagicNumbers.processClass(CraftMagicNumbers.java:405) ~[purpur-1.19.4.jar:git-Purpur-1985]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:209) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:593) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:157) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:152) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?]
at java.lang.Class.forName0(Native Method) ~[?:?]
at java.lang.Class.forName(Class.java:534) ~[?:?]
at java.lang.Class.forName(Class.java:513) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.(PluginClassLoader.java:78) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:123) ~[purpur-1.19.4.jar:git-Purpur-1985]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:35) ~[purpur-1.19.4.jar:git-Purpur-1985]
at io.papermc.paper.plugin.entrypoint.strategy.modern.ModernPluginLoadingStrategy.loadProviders(ModernPluginLoadingStrategy.java:116) ~[purpur-1.19.4.jar:git-Purpur-1985]
at io.papermc.paper.plugin.storage.SimpleProviderStorage.enter(SimpleProviderStorage.java:39) ~[purpur-1.19.4.jar:git-Purpur-1985]
at io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler.enter(LaunchEntryPointHandler.java:36) ~[purpur-1.19.4.jar:git-Purpur-1985]
at org.bukkit.craftbukkit.v1_19_R3.CraftServer.loadPlugins(CraftServer.java:445) ~[purpur-1.19.4.jar:git-Purpur-1985]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:310) ~[purpur-1.19.4.jar:git-Purpur-1985]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1120) ~[purpur-1.19.4.jar:git-Purpur-1985]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:325) ~[purpur-1.19.4.jar:git-Purpur-1985]
at java.lang.Thread.run(Thread.java:1583) ~[?:?]

[20:07:25] [Server thread/INFO]: [PlaytimeLink] Enabling PlaytimeLink v1.6
[20:07:25] [Server thread/ERROR]: Fatal error trying to convert PlaytimeLink v1.6:_1ms/playtimelink/RequestSender.class
java.lang.IllegalArgumentException: Unsupported class file major version 65
at org.objectweb.asm.ClassReader.(ClassReader.java:199) ~[asm-9.4.jar:9.4]
at org.objectweb.asm.ClassReader.(ClassReader.java:180) ~[asm-9.4.jar:9.4]
at org.objectweb.asm.ClassReader.(ClassReader.java:166) ~[asm-9.4.jar:9.4]
at org.bukkit.craftbukkit.v1_19_R3.util.Commodore.convert(Commodore.java:171) ~[purpur-1.19.4.jar:git-Purpur-1985]
at org.bukkit.craftbukkit.v1_19_R3.util.CraftMagicNumbers.processClass(CraftMagicNumbers.java:405) ~[purpur-1.19.4.jar:git-Purpur-1985]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:209) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:593) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:157) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:152) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?]
at _1ms.playtimelink.Main.InitInstances(Main.java:98) ~[PlaytimeLink-1.6-all.jar:?]
at _1ms.playtimelink.Main.onEnable(Main.java:49) ~[PlaytimeLink-1.6-all.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:281) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:189) ~[purpur-1.19.4.jar:git-Purpur-1985]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:104) ~[purpur-1.19.4.jar:git-Purpur-1985]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:507) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.v1_19_R3.CraftServer.enablePlugin(CraftServer.java:577) ~[purpur-1.19.4.jar:git-Purpur-1985]
at org.bukkit.craftbukkit.v1_19_R3.CraftServer.enablePlugins(CraftServer.java:488) ~[purpur-1.19.4.jar:git-Purpur-1985]
at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:643) ~[purpur-1.19.4.jar:git-Purpur-1985]
at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:442) ~[purpur-1.19.4.jar:git-Purpur-1985]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:345) ~[purpur-1.19.4.jar:git-Purpur-1985]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1120) ~[purpur-1.19.4.jar:git-Purpur-1985]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:325) ~[purpur-1.19.4.jar:git-Purpur-1985]
at java.lang.Thread.run(Thread.java:1583) ~[?:?]

[GRX005]

Hi, for the plugin to work your server needs to be running on java 21 or a newer version.

[itsDanny5555]

I think thats on Java 21?

[init] Image info: buildtime=2025-07-27T01:48:49.548Z,version=java21,revision=ac806b756cb607d44b0d36b3d57f542a2fd8f508
[init] Resolving type given PAPER
[init] Copying any plugins from /plugins to /data/plugins
[init] Copying any configs from /config to /data/config
[init] Setting mode
[mc-image-helper] 21:11:28.709 INFO : Created/updated 1 property in /data/server.properties
[init] Setting initial memory to 11500M and max to 11500M
[init] Starting the Minecraft server...
WARNING: Using incubator modules: jdk.incubator.vector
Downloading mojang_1.19.4.jar
Applying patches
Starting org.bukkit.craftbukkit.Main
System Info: Java 21 (OpenJDK 64-Bit Server VM 21.0.7+6-LTS) Host: Linux 5.4.0-212-generic (amd64)
Loading libraries, please wait...
2025-07-30 21:11:37,705 ServerMain WARN Advanced terminal features are not available in this environment
[21:11:38 INFO]: [SparkProviderSource] Purpur: Using user-provided spark plugin instead of our own.
[21:11:41 INFO]: Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com', sessionHost='https://sessionserver.mojang.com', servicesHost='https://api.minecraftservices.com', name='PROD'
[21:11:42 INFO]: Loaded 7 recipes
[21:11:42 INFO]: Starting minecraft server version 1.19.4
[21:11:42 INFO]: Loading properties
[21:11:42 INFO]: This server is running Purpur version git-Purpur-1985 (MC: 1.19.4) (Implementing API version 1.19.4-R0.1-SNAPSHOT) (Git: 6886272 on HEAD)
[21:11:42 INFO]: Server Ping Player Sample Count: 12
[21:11:42 INFO]: Using 4 threads for Netty based IO
[21:11:42 INFO]: [ChunkTaskScheduler] Chunk system is using 1 I/O threads, 2 worker threads, and gen parallelism of 2 threads
[21:11:43 WARN]: [Pufferfish] Will not enable SIMD! These optimizations are only safely supported on Java 17, Java 18, and Java 19.
[21:11:43 INFO]: Default game type: SURVIVAL
[21:11:43 INFO]: Generating keypair
[21:11:43 INFO]: Starting Minecraft server on *:31384
[21:11:43 INFO]: Using epoll channel type
[21:11:43 INFO]: Paper: Using libdeflate (Linux x86_64) compression from Velocity.
[21:11:43 INFO]: Paper: Using OpenSSL 3.0.x (Linux x86_64) cipher from Velocity.
[21:11:44 ERROR]: Fatal error trying to convert PlaytimeLink v1.6:_1ms/playtimelink/Main.class
java.lang.IllegalArgumentException: Unsupported class file major version 65
at org.objectweb.asm.ClassReader.(ClassReader.java:199) ~[asm-9.4.jar:9.4]
at org.objectweb.asm.ClassReader.(ClassReader.java:180) ~[asm-9.4.jar:9.4]
at org.objectweb.asm.ClassReader.(ClassReader.java:166) ~[asm-9.4.jar:9.4]
at org.bukkit.craftbukkit.v1_19_R3.util.Commodore.convert(Commodore.java:171) ~[purpur-1.19.4.jar:git-Purpur-1985]
at org.bukkit.craftbukkit.v1_19_R3.util.CraftMagicNumbers.processClass(CraftMagicNumbers.java:405) ~[purpur-1.19.4.jar:git-Purpur-1985]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:209) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:157) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:152) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:?]
at java.lang.Class.forName0(Native Method) ~[?:?]
at java.lang.Class.forName(Unknown Source) ~[?:?]
at java.lang.Class.forName(Unknown Source) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.(PluginClassLoader.java:78) ~[purpur-api-1.19.4-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:123) ~[purpur-1.19.4.jar:git-Purpur-1985]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:35) ~[purpur-1.19.4.jar:git-Purpur-1985]
at io.papermc.paper.plugin.entrypoint.strategy.modern.ModernPluginLoadingStrategy.loadProviders(ModernPluginLoadingStrategy.java:116) ~[purpur-1.19.4.jar:git-Purpur-1985]
at io.papermc.paper.plugin.storage.SimpleProviderStorage.enter(SimpleProviderStorage.java:39) ~[purpur-1.19.4.jar:git-Purpur-1985]
at io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler.enter(LaunchEntryPointHandler.java:36) ~[purpur-1.19.4.jar:git-Purpur-1985]
at org.bukkit.craftbukkit.v1_19_R3.CraftServer.loadPlugins(CraftServer.java:445) ~[purpur-1.19.4.jar:git-Purpur-1985]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:310) ~[purpur-1.19.4.jar:git-Purpur-1985]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1120) ~[purpur-1.19.4.jar:git-Purpur-1985]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:325) ~[purpur-1.19.4.jar:git-Purpur-1985]
at java.lang.Thread.run(Unknown Source) ~[?:?]

[itsDanny5555]

here is the full code:

https://mclo.gs/hTyFw8a

Edit: There are many Errors

[GRX005]

Hi, I could reproduce the issue, I'll look into fixing it later, for now you can use this java 17 compatible build of the latest version (it should work on java 21 too):

PlaytimeLink-1.6-all.zip