Error occurred while enabling TCPShield v2.5 (Is it up to date?)

[8PotatoChip8]

[SEVERE] Error occurred while enabling TCPShield v2.5 (Is it up to date?): net.tcpshield.tcpshield.bukkit.TCPShieldBukkit.getLogger()Ljava/util/logging/Logger; java.lang.AbstractMethodError: net.tcpshield.tcpshield.bukkit.TCPShieldBukkit.getLogger()Ljava/util/logging/Logger; at net.tcpshield.tcpshield.bukkit.TCPShieldBukkit.onEnable(TCPShieldBukkit.java:36) at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:188) at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:957) at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:280) at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:176) at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:159) at net.minecraft.server.MinecraftServer.t(MinecraftServer.java:337) at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:324) at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:161) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:388) at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)

Running Craftbukkit craftbukkit-1.0.0-SNAPSHOT

[DylanKeir]

Try using this version: https://github.com/TCPShield/RealIP/releases/tag/2.5.2

[8PotatoChip8]

[SEVERE] Could not load 'plugins\TCPShield-2.5.2.jar' in folder 'plugins': java.lang.UnsupportedClassVersionError: net/tcpshield/tcpshield/bukkit/TCPShieldBukkit has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$100(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:36) at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:24) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:170) at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:215) at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:136) at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:141) at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:117) at net.minecraft.server.ServerConfigurationManager.<init>(ServerConfigurationManager.java:52) at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:141) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:388) at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)

This is the error using version 2.5.2

[DylanKeir]

You're using JDK 8, the plugin does not support below JDK 11.

[8PotatoChip8]

You were correct. But here is new problem:

[SEVERE] Error occurred while enabling TCPShield v2.5.2 (Is it up to date?): Method net/tcpshield/tcpshield/bukkit/TCPShieldBukkit.getLogger()Ljava/util/logging/Logger; is abstract java.lang.AbstractMethodError: Method net/tcpshield/tcpshield/bukkit/TCPShieldBukkit.getLogger()Ljava/util/logging/Logger; is abstract at net.tcpshield.tcpshield.bukkit.TCPShieldBukkit.getLogger(TCPShieldBukkit.java) at net.tcpshield.tcpshield.bukkit.TCPShieldBukkit.onEnable(TCPShieldBukkit.java:36) at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:188) at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:957) at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:280) at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:176) at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:159) at net.minecraft.server.MinecraftServer.t(MinecraftServer.java:337) at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:324) at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:161) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:388) at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)

[DylanKeir]

Which Spigot fork are you running and which version? It looks like an issue within your Spigot but I can take a look for you.

[8PotatoChip8]

Running Craftbukkit craftbukkit-1.0.0-SNAPSHOT

[DylanKeir]

Eh? 1.0.0 as in Minecraft 1.0...? I don't think you're getting the right version, run the version command in your servers console.

[8PotatoChip8]

no, uh yeah..... Minecraft 1.0 is correct

[DylanKeir]

Completely irrelevant but can I ask why you're running on such an old version? I've not heard of anybody running below 1.4.6 even with modpacks in years.

[8PotatoChip8]

I am looking to run a Minecraft server "NostalgiaCraft" where we will run on the oldest version of Minecraft that has plugin capabilities.

[DylanKeir]

I'll be completely honest with you, this is such a tiny niche edge case which really shouldn't be supported in the plugin, your best option would be to modify your spigot to have a default implementation of JavaPlugin#getLogger (this is the issue, older versions of minecraft do not have a default logger), however chances are if this is an issue, many other things maybe as well so we cannot guarantee if you do fix that one issue that the plugin will even begin to function.

[DylanKeir]

Also, Steven has just informed me our proxies don't support any versions below 1.7, so regardless if you get the plugin to load, TCPShield can't protect you.

[8PotatoChip8]

Oh, thats a disappointment. But alright. Thanks for helping me.