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via GitHub by daboross
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java.lang.NullPointerException at net.glowstone.inventory.GlowMetaPotion.dataToString(GlowMetaPotion.java:191) at net.glowstone.inventory.GlowMetaPotion.writeNbt(GlowMetaPotion.java:87) at net.glowstone.inventory.GlowItemFactory.writeNbt(GlowItemFactory.java:80) at net.glowstone.io.nbt.NbtSerialization.writeItem(NbtSerialization.java:74) at net.glowstone.io.nbt.NbtSerialization.writeInventory(NbtSerialization.java:112) at net.glowstone.block.entity.TEContainer.saveNbt(TEContainer.java:45) at net.glowstone.GlowChunk.toMessage(GlowChunk.java:697) at net.glowstone.GlowChunk.toMessage(GlowChunk.java:616) at net.glowstone.entity.GlowPlayer.streamBlocks(GlowPlayer.java:716) at net.glowstone.entity.GlowPlayer.join(GlowPlayer.java:403) at net.glowstone.net.GlowSession.setPlayer(GlowSession.java:342) at net.glowstone.net.handler.login.LoginStartHandler.lambda$handle$0(LoginStartHandler.java:56) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at net.glowstone.scheduler.GlowTask.run(GlowTask.java:167) at net.glowstone.scheduler.GlowScheduler.pulse(GlowScheduler.java:152) at net.glowstone.scheduler.GlowScheduler.lambda$start$0(GlowScheduler.java:83) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)