java.lang.OutOfMemoryError: Java heap space

Mojang JIRA | The Papa | 9 months ago
  1. 0

    Making a superflat world with one layer causes an Exception, because there is hardly any heap space: {code} net.minecraft.util.ReportedException: Exception generating new chunk at net.minecraft.world.WorldServer.initialize(WorldServer.java:814) at net.minecraft.server.integrated.IntegratedServer.loadAllWorlds(IntegratedServer.java:119) at net.minecraft.server.integrated.IntegratedServer.startServer(IntegratedServer.java:152) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:527) at java.lang.Thread.run(Unknown Source) [?:1.8.0_66] Caused by: java.lang.OutOfMemoryError: Java heap space at net.minecraft.world.chunk.NibbleArray.<init>(NibbleArray.java:14) at net.minecraft.world.chunk.storage.ExtendedBlockStorage.<init>(ExtendedBlockStorage.java:42) at net.minecraft.world.chunk.Chunk.<init>(Chunk.java:163) at net.minecraft.world.gen.ChunkProviderFlat.provideChunk(ChunkProviderFlat.java:150) at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:130) at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:160) at net.minecraft.world.World.getChunkFromChunkCoords(World.java:346) at net.minecraft.world.World.getChunkFromBlockCoords(World.java:335) at net.minecraft.world.World.getBlockState(World.java:859) at net.minecraft.world.World.isAirBlock(World.java:257) at net.minecraft.world.World.getGroundAboveSeaLevel(World.java:239) at net.minecraft.world.WorldProvider.canCoordinateBeSpawn(WorldProvider.java:110) at net.minecraft.world.WorldServer.createSpawnPosition(WorldServer.java:872) at net.minecraft.world.WorldServer.initialize(WorldServer.java:792) ... 4 more [11:47:57] [Server thread/ERROR]: This crash report has been saved to: C:\Users\<censored>\AppData\Roaming\.minecraft\crash-reports\crash-2016-03-21_11.47.52-server.txt {code} I also get another insuffecient heap space error when I try to close down Minecraft: {code} [11:47:57] [Server thread/INFO]: Stopping server [11:47:57] [Server thread/INFO]: Saving players [11:47:57] [Server thread/INFO]: Saving worlds [11:47:57] [Server thread/INFO]: Saving chunks for level 'Village Finder'/Overworld Exception in thread "Server thread" java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOf(Unknown Source) at java.lang.AbstractStringBuilder.expandCapacity(Unknown Source) at java.lang.AbstractStringBuilder.ensureCapacityInternal(Unknown Source) at java.lang.AbstractStringBuilder.append(Unknown Source) at java.lang.StringBuilder.append(Unknown Source) at java.lang.StringBuilder.append(Unknown Source) Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space {code} Here is the crash report: {code} ---- Minecraft Crash Report ---- // Don't do that. Time: 3/21/16 11:47 AM Description: Exception generating new chunk java.lang.OutOfMemoryError: Java heap space at net.minecraft.world.chunk.NibbleArray.<init>(NibbleArray.java:14) at net.minecraft.world.chunk.storage.ExtendedBlockStorage.<init>(ExtendedBlockStorage.java:42) at net.minecraft.world.chunk.Chunk.<init>(Chunk.java:163) at net.minecraft.world.gen.ChunkProviderFlat.provideChunk(ChunkProviderFlat.java:150) at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:130) at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:160) at net.minecraft.world.World.getChunkFromChunkCoords(World.java:346) at net.minecraft.world.World.getChunkFromBlockCoords(World.java:335) at net.minecraft.world.World.getBlockState(World.java:859) at net.minecraft.world.World.isAirBlock(World.java:257) at net.minecraft.world.World.getGroundAboveSeaLevel(World.java:239) at net.minecraft.world.WorldProvider.canCoordinateBeSpawn(WorldProvider.java:110) at net.minecraft.world.WorldServer.createSpawnPosition(WorldServer.java:872) at net.minecraft.world.WorldServer.initialize(WorldServer.java:792) at net.minecraft.server.integrated.IntegratedServer.loadAllWorlds(IntegratedServer.java:119) at net.minecraft.server.integrated.IntegratedServer.startServer(IntegratedServer.java:152) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:527) at java.lang.Thread.run(Unknown Source) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at net.minecraft.world.chunk.NibbleArray.<init>(NibbleArray.java:14) at net.minecraft.world.chunk.storage.ExtendedBlockStorage.<init>(ExtendedBlockStorage.java:42) at net.minecraft.world.chunk.Chunk.<init>(Chunk.java:163) at net.minecraft.world.gen.ChunkProviderFlat.provideChunk(ChunkProviderFlat.java:150) -- Chunk to be generated -- Details: Location: -3,51 Position hash: 223338299389 Generator: FlatLevelSource Stacktrace: at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:130) at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:160) at net.minecraft.world.World.getChunkFromChunkCoords(World.java:346) at net.minecraft.world.World.getChunkFromBlockCoords(World.java:335) at net.minecraft.world.World.getBlockState(World.java:859) at net.minecraft.world.World.isAirBlock(World.java:257) at net.minecraft.world.World.getGroundAboveSeaLevel(World.java:239) at net.minecraft.world.WorldProvider.canCoordinateBeSpawn(WorldProvider.java:110) at net.minecraft.world.WorldServer.createSpawnPosition(WorldServer.java:872) -- Affected level -- Details: Level name: Village Finder All players: 0 total; [] Chunk stats: ServerChunkCache: 520 Drop: 0 Level seed: 6508721325 Level generator: ID 01 - flat, ver 0. Features enabled: true Level generator options: 3;minecraft:bedrock;1;village Level spawn location: 0.00,0.00,0.00 - World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511) Level time: 0 game time, 0 day time Level dimension: 0 Level storage version: 0x04ABD - Anvil Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false) Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true Stacktrace: at net.minecraft.world.WorldServer.initialize(WorldServer.java:792) at net.minecraft.server.integrated.IntegratedServer.loadAllWorlds(IntegratedServer.java:119) at net.minecraft.server.integrated.IntegratedServer.startServer(IntegratedServer.java:152) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:527) at java.lang.Thread.run(Unknown Source) -- Client Details -- Session ID: token:fa6652af00ba4a46a6ba6daba78f800b:a5b571be309843b7b035f05298422d38 LWJGL Version: 2.9.4 Reloading ResourceManager: Default Local Player ID: [local:E:dc1f21d2] Entity ID: 135 Location: X: -1463.722650610396, Y: 83.58051006549411, Z: 1920.213808177263 -- System Details -- Details: Minecraft Version: 1.9 Operating System: Windows Vista (x86) version 6.1 Java Version: 1.8.0_66, Oracle Corporation Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation Memory: 28248 bytes (0 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB) JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95 Profiler Position: N/A (disabled) Player Count: 0 / 8; [] Type: Integrated Server (map_client.txt) Is Modded: Probably not. Jar signature remains and client brand is untouched. {code}

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Root Cause Analysis

  1. java.lang.OutOfMemoryError

    Java heap space

    at java.util.Arrays.copyOf()
  2. Java RT
    StringBuilder.append
    1. java.util.Arrays.copyOf(Unknown Source)
    2. java.lang.AbstractStringBuilder.expandCapacity(Unknown Source)
    3. java.lang.AbstractStringBuilder.ensureCapacityInternal(Unknown Source)
    4. java.lang.AbstractStringBuilder.append(Unknown Source)
    5. java.lang.StringBuilder.append(Unknown Source)
    6. java.lang.StringBuilder.append(Unknown Source)
    6 frames