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 TNTUP
, 1 year ago
Name cannot be null
via GitHub by mibby
, 1 year ago
via GitHub by accpclair
, 5 months ago
via GitHub by xJqlen
, 1 year ago
Name cannot be null
via GitHub by Thornas88
, 2 years ago
Stream cannot be null
java.lang.IllegalArgumentException: Name cannot be null	at org.apache.commons.lang.Validate.notNull(Validate.java:192)	at org.bukkit.craftbukkit.v1_11_R1.CraftServer.getWorld(CraftServer.java:1020)	at org.bukkit.Bukkit.getWorld(Bukkit.java:500)	at com.garbagemule.MobArena.ArenaImpl.(ArenaImpl.java:189)	at com.garbagemule.MobArena.ArenaMasterImpl.loadArena(ArenaMasterImpl.java:578)	at com.garbagemule.MobArena.ArenaMasterImpl.loadArenasInWorld(ArenaMasterImpl.java:535)	at com.garbagemule.MobArena.ArenaMasterImpl.loadArenas(ArenaMasterImpl.java:519)	at com.garbagemule.MobArena.ArenaMasterImpl.initialize(ArenaMasterImpl.java:238)	at com.garbagemule.MobArena.MobArena.onEnable(MobArena.java:93)	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:271)	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337)	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405)	at com.rylinaux.plugman.util.PluginUtil.load(PluginUtil.java:363)	at com.rylinaux.plugman.command.LoadCommand.execute(LoadCommand.java:114)	at com.rylinaux.plugman.PlugManCommandHandler.onCommand(PlugManCommandHandler.java:95)	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141)	at org.bukkit.craftbukkit.v1_11_R1.CraftServer.dispatchCommand(CraftServer.java:647)	at org.bukkit.craftbukkit.v1_11_R1.CraftServer.dispatchServerCommand(CraftServer.java:633)	at net.minecraft.server.v1_11_R1.DedicatedServer.aM(DedicatedServer.java:437)	at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:400)	at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:675)	at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:574)