WARNING: sun.reflect.Reflection.getCallerClass is not supported. This will impact performance.
java.lang.ExceptionInInitializerError
at org.bukkit.craftbukkit.Main.main(Main.java:222)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.destroystokyo.paperclip.Utils.invoke(Utils.java:59)
at com.destroystokyo.paperclip.Paperclip.run(Paperclip.java:155)
at com.destroystokyo.paperclip.Main.main(Main.java:9)
Caused by: java.lang.UnsupportedOperationException: No class provided, and an appropriate one cannot be found.
at org.apache.logging.log4j.LogManager.callerClass(LogManager.java:573)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:598)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:585)
at net.minecraft.server.v1_12_R1.MinecraftServer.<clinit>(MinecraftServer.java:56)
... 8 more
java.lang.ExceptionInInitializerError
at org.bukkit.craftbukkit.Main.main(Main.java:222)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.destroystokyo.paperclip.Utils.invoke(Utils.java:59)
at com.destroystokyo.paperclip.Paperclip.run(Paperclip.java:155)
at com.destroystokyo.paperclip.Main.main(Main.java:9)
Caused by: java.lang.UnsupportedOperationException: No class provided, and an appropriate one cannot be found.
at org.apache.logging.log4j.LogManager.callerClass(LogManager.java:573)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:598)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:585)
at net.minecraft.server.v1_12_R1.MinecraftServer.<clinit>(MinecraftServer.java:56)
... 8 more