java.lang.NullPointerException

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Take a look at this blog post on how to set up Grid2 https://goo.gl/rxzbE6. A user related (in the email group on the source) that using older selenium libs solves this exception.

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  • GitHub comment 835#228731932
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  • GitHub comment 42#54705045
    via GitHub by anhdenday
    ,
    • java.lang.NullPointerException: data cannot be null at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:229)[craftbukkit-1.10-R0.1-SNAPSHOT-latest.jar:git-Bukkit-9af379f] at net.citizensnpcs.api.npc.SimpleMetadataStore.checkPrimitive(SimpleMetadataStore.java:15)[?:?] at net.citizensnpcs.api.npc.SimpleMetadataStore.setPersistent(SimpleMetadataStore.java:86)[?:?] at net.citizensnpcs.api.npc.AbstractNPC$1.setPersistent(AbstractNPC.java:65)[?:?] at net.citizensnpcs.npc.skin.Skin.setNPCSkinData(Skin.java:315)[?:?] at net.citizensnpcs.npc.skin.Skin.apply(Skin.java:106)[?:?] at net.citizensnpcs.npc.skin.SkinPacketTracker.updateViewer(SkinPacketTracker.java:218)[?:?] at net.citizensnpcs.npc.skin.SkinUpdateTracker$1.run(SkinUpdateTracker.java:338)[?:?] at org.bukkit.craftbukkit.v1_10_R1.scheduler.CraftTask.run(CraftTask.java:53)[craftbukkit-1.10-R0.1-SNAPSHOT-latest.jar:git-Bukkit-9af379f] at org.bukkit.craftbukkit.v1_10_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:349)[craftbukkit-1.10-R0.1-SNAPSHOT-latest.jar:git-Bukkit-9af379f] at net.minecraft.server.v1_10_R1.MinecraftServer.D(MinecraftServer.java:697)[craftbukkit-1.10-R0.1-SNAPSHOT-latest.jar:git-Bukkit-9af379f] at net.minecraft.server.v1_10_R1.DedicatedServer.D(DedicatedServer.java:360)[craftbukkit-1.10-R0.1-SNAPSHOT-latest.jar:git-Bukkit-9af379f] at net.minecraft.server.v1_10_R1.MinecraftServer.C(MinecraftServer.java:646)[craftbukkit-1.10-R0.1-SNAPSHOT-latest.jar:git-Bukkit-9af379f] at net.minecraft.server.v1_10_R1.MinecraftServer.run(MinecraftServer.java:550)[craftbukkit-1.10-R0.1-SNAPSHOT-latest.jar:git-Bukkit-9af379f] at java.lang.Thread.run(Unknown Source)[?:1.8.0_91]

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