Установил плагин, ядро - spigot 1.17.1, версия джавы - 16.0.2. Ошибка -
[16:45:45] [Server thread/WARN]: org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: com/willfp/eco/internal/spigot/EcoImpl has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 60.0
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:149)
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:394)
[16:45:45] [Server thread/WARN]: at com.rylinaux.plugman.util.PluginUtil.load(PluginUtil.java:299)
[16:45:45] [Server thread/WARN]: at com.rylinaux.plugman.command.LoadCommand.execute(LoadCommand.java:120)
[16:45:45] [Server thread/WARN]: at com.rylinaux.plugman.PlugManCommandHandler.onCommand(PlugManCommandHandler.java:95)
[16:45:45] [Server thread/WARN]: at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45)
[16:45:45] [Server thread/WARN]: at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:149)
[16:45:45] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_17_R1.CraftServer.dispatchCommand(CraftServer.java:790)
[16:45:45] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_17_R1.CraftServer.dispatchServerCommand(CraftServer.java:775)
[16:45:45] [Server thread/WARN]: at net.minecraft.server.dedicated.DedicatedServer.handleCommandQueue(DedicatedServer.java:475)
[16:45:45] [Server thread/WARN]: at net.minecraft.server.dedicated.DedicatedServer.b(DedicatedServer.java:439)
[16:45:45] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:1217)
[16:45:45] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1050)
[16:45:45] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:305)
[16:45:45] [Server thread/WARN]: at java.base/java.lang.Thread.run(Thread.java:831)
[16:45:45] [Server thread/WARN]: Caused by: java.lang.UnsupportedClassVersionError: com/willfp/eco/internal/spigot/EcoImpl has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 60.0
[16:45:45] [Server thread/WARN]: at java.base/java.lang.ClassLoader.defineClass1(Native Method)
[16:45:45] [Server thread/WARN]: at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1010)
[16:45:45] [Server thread/WARN]: at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:193)
[16:45:45] [Server thread/WARN]: at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:586)
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:104)
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:99)
[16:45:45] [Server thread/WARN]: at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519)
[16:45:45] [Server thread/WARN]: at java.base/java.lang.Class.forName0(Native Method)
[16:45:45] [Server thread/WARN]: at java.base/java.lang.Class.forName(Class.java:466)
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:67)
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:145)
[16:45:45] [Server thread/WARN]: ... 14 more
[16:45:45] [Server thread/WARN]: org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: com/willfp/eco/internal/spigot/EcoImpl has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 60.0
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:149)
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:394)
[16:45:45] [Server thread/WARN]: at com.rylinaux.plugman.util.PluginUtil.load(PluginUtil.java:299)
[16:45:45] [Server thread/WARN]: at com.rylinaux.plugman.command.LoadCommand.execute(LoadCommand.java:120)
[16:45:45] [Server thread/WARN]: at com.rylinaux.plugman.PlugManCommandHandler.onCommand(PlugManCommandHandler.java:95)
[16:45:45] [Server thread/WARN]: at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45)
[16:45:45] [Server thread/WARN]: at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:149)
[16:45:45] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_17_R1.CraftServer.dispatchCommand(CraftServer.java:790)
[16:45:45] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_17_R1.CraftServer.dispatchServerCommand(CraftServer.java:775)
[16:45:45] [Server thread/WARN]: at net.minecraft.server.dedicated.DedicatedServer.handleCommandQueue(DedicatedServer.java:475)
[16:45:45] [Server thread/WARN]: at net.minecraft.server.dedicated.DedicatedServer.b(DedicatedServer.java:439)
[16:45:45] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:1217)
[16:45:45] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1050)
[16:45:45] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:305)
[16:45:45] [Server thread/WARN]: at java.base/java.lang.Thread.run(Thread.java:831)
[16:45:45] [Server thread/WARN]: Caused by: java.lang.UnsupportedClassVersionError: com/willfp/eco/internal/spigot/EcoImpl has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 60.0
[16:45:45] [Server thread/WARN]: at java.base/java.lang.ClassLoader.defineClass1(Native Method)
[16:45:45] [Server thread/WARN]: at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1010)
[16:45:45] [Server thread/WARN]: at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:193)
[16:45:45] [Server thread/WARN]: at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:586)
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:104)
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:99)
[16:45:45] [Server thread/WARN]: at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519)
[16:45:45] [Server thread/WARN]: at java.base/java.lang.Class.forName0(Native Method)
[16:45:45] [Server thread/WARN]: at java.base/java.lang.Class.forName(Class.java:466)
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:67)
[16:45:45] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:145)
[16:45:45] [Server thread/WARN]: ... 14 more