java.io.IOException: Stream Closed
    at java.io.RandomAccessFile.seek(Native Method)
    at net.minecraft.server.RegionFile.a(SourceFile:306)
    at net.minecraft.server.RegionFile.a(SourceFile:249)
    at net.minecraft.server.ChunkBuffer.close(SourceFile:230)
    at java.util.zip.DeflaterOutputStream.close(Unknown Source)
    at java.io.FilterOutputStream.close(Unknown Source)
    at com.lishid.orebfuscator.cache.ObfuscatedCachedChunk.setData(ObfuscatedCachedChunk.java:164)
    at com.lishid.orebfuscator.cache.ObfuscatedCachedChunk.Write(ObfuscatedCachedChunk.java:116)
    at com.lishid.orebfuscator.obfuscation.Calculations.Obfuscate(Calculations.java:387)
    at com.lishid.orebfuscator.obfuscation.Calculations.ComputeChunkInfoAndObfuscate(Calculations.java:155)
    at com.lishid.orebfuscator.obfuscation.Calculations.Obfuscate(Calculations.java:107)
    at com.lishid.orebfuscator.threading.OrebfuscatorThreadCalculation.run(OrebfuscatorThreadCalculation.java:178)