Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via GitHub by ronewird
, 2 years ago
This exception has no message.
java.lang.reflect.InvocationTargetException at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at skinsrestorer.shared.utils.ReflectionUtil.invokeMethod(ReflectionUtil.java:96) at skinsrestorer.shared.utils.YamlConfig.save(YamlConfig.java:119) at skinsrestorer.shared.utils.YamlConfig.set(YamlConfig.java:47) at skinsrestorer.shared.storage.SkinStorage.removePlayerSkin(SkinStorage.java:47) at skinsrestorer.shared.storage.SkinStorage.getPlayerSkin(SkinStorage.java:185) at skinsrestorer.shared.storage.SkinStorage.getOrCreateSkinForPlayer(SkinStorage.java:207) at skinsrestorer.bukkit.listeners.SkinsPacketHandler.write(SkinsPacketHandler.java:75) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:658) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:716) at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:706) at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:741) at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:895) at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:240) at net.minecraft.server.v1_10_R1.NetworkManager$4.run(NetworkManager.java:200) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:380) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357) at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116) at java.lang.Thread.run(Thread.java:745)Caused by: java.lang.NullPointerException at org.yaml.snakeyaml.emitter.Emitter.expectNode(Emitter.java:400) at org.yaml.snakeyaml.emitter.Emitter.access$1600(Emitter.java:62) at org.yaml.snakeyaml.emitter.Emitter$ExpectBlockMappingSimpleValue.expect(Emitter.java:641) at org.yaml.snakeyaml.emitter.Emitter.emit(Emitter.java:216) at org.yaml.snakeyaml.serializer.Serializer.serializeNode(Serializer.java:181) at org.yaml.snakeyaml.serializer.Serializer.serializeNode(Serializer.java:205) at org.yaml.snakeyaml.serializer.Serializer.serializeNode(Serializer.java:206) at org.yaml.snakeyaml.serializer.Serializer.serializeNode(Serializer.java:206) at org.yaml.snakeyaml.serializer.Serializer.serialize(Serializer.java:112) at org.yaml.snakeyaml.Yaml.dumpAll(Yaml.java:243) at org.yaml.snakeyaml.Yaml.dumpAll(Yaml.java:206) at org.yaml.snakeyaml.Yaml.dump(Yaml.java:181) at org.bukkit.configuration.file.YamlConfiguration.saveToString(YamlConfiguration.java:39) at org.bukkit.configuration.file.FileConfiguration.save(FileConfiguration.java:68) ... 21 more