How to paste schematic asynchronously using FAWE API?

[Krifix-repo]

Hello!
I am developing a plugin which needs to load big schematics - 600x600x256 blocks including air.
Saving schematic into a file is not a big deal. It's done without any lags.
But I ran into an issue, where loading and pasting the same schematic I created earlier crashes the server. It hangs (i guess) all of threads and then crashes.
Current Thread: Server thread PID: 33 | Suspended: false | Native: false | State: WAITING Suspected Plugins: MyPlugin{enabled,ver=1.0,path=plugins/arena-1.0-SNAPSHOT.jar} Multiverse-Core{enabled,ver=4.3.12,path=plugins/multiverse-core-4.3.12(2).jar}

My code:

public void loadSchematic(File schematicFile, org.bukkit.World bukkitWorld, EmptyLambdaExpression expression) {
       Bukkit.getScheduler().runTaskAsynchronously(Arena.getInstance(), () -> {
           final World world = FaweAPI.getWorld(bukkitWorld.getName());
           ClipboardFormat format = ClipboardFormats.findByFile(schematicFile);
           Clipboard clipboard;

           try (ClipboardReader clipboardReader = format.getReader(new FileInputStream(schematicFile))) {
               EditSession editSession = WorldEdit.getInstance().newEditSessionBuilder().world(world).build();
               clipboard = clipboardReader.read();

               Operation operation = new ClipboardHolder(clipboard)
                       .createPaste(editSession)
                       .to(clipboard.getOrigin())
                       .ignoreAirBlocks(true)
                       .copyEntities(true)
                       .copyBiomes(true)
                       .build();

               Operations.complete(operation);
               expression.run();
           } catch (Exception e) {
               throw new RuntimeException(e);
           }
       });
   }

Thank you in advance.

[PierreSchwang]

The full Stacktrace / crash report / server log would be great for that. You should wrap the edit session into a try-with-resources (and instead of using an "EmptyLambdaExpression" just use the built in Runnable. No need to create an interface for that.

[Krifix-repo]

Okay, thanks for tips. I will change that. Try-with-resources does not fix my issue. I did save schematic without using that. I'll wrap it, but just saying.
So, there is the server log: https://pastebin.pl/view/67ebb41a
I don't know any service to paste large files like this (pastebin has 512kb limit per file), so I've found this one.
I hope it'll help.

[TheMeinerLP]

Thats a typical multiverse issue

[Krifix-repo]

Soo, should I remove multiverse and then try with bukkit's world management? Also I didn't mention that I create a world, then instantly paste schematic, unload it and move files to another directory.

[TheMeinerLP]

Yeah you din't say that. But when I analyze your log from the paste, I can read clearly the crash comes from multiverse

[Krifix-repo]

I've fully removed multiverse from my plugin and server. Server still crashes, but some plugins started responding. Essentials command /gm works, server reacts to unknown commands but spark's /tps command is still not working.
It's worth to mention that server started to teleport me infinitely back with moved too quickly reason. It didn't happen before.
Logs: https://pastebin.pl/view/1b8797d3

[PierreSchwang]

Don't use whatever SSSpigot2 is - use Paper. And don't reload.

[Krifix-repo]

Looks like this fixed the issue. SSSpigot is Paper fork with "Multi-threaded Ticking", so i thought it should work kinda like Paper in terms of plugins.
Anyway, thank you so much.
Have a nice day!

[Krifix-repo]

Hi! It's me again.
I have another problem.
When I use the newest version of FAWE and try to paste schematic I get the following message:
[18:59:25] [FAWE Blocking Executor - 1/WARN]: [com.fastasyncworldedit.core.FaweCache] Receiver class com.sk89q.worldedit.bukkit.adapter.impl.fawe.BukkitGetBlocks_1_16_5 does not define or inherit an implementation of the resolved method 'abstract int setCreateCopy(boolean)' of interface com.fastasyncworldedit.core.queue.IChunkGet.
All I get is an empty world without any blocks.

But when I use older version - for example FastAsyncWorldEdit-Bukkit-2.2.1-SNAPSHOT-193.jar which is version downloaded from https://intellectualsites.github.io/download/fawe.html for versions "1.16.5 - 1.18.2" I get:

[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/INFO]: [com.fastasyncworldedit.core.extent.clipboard.DiskOptimizedClipboard] 61992
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/INFO]: [com.fastasyncworldedit.core.extent.clipboard.DiskOptimizedClipboard] 958044
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: java.lang.IndexOutOfBoundsException
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at java.base/java.nio.Buffer.checkIndex(Buffer.java:743)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at java.base/java.nio.DirectByteBuffer.put(DirectByteBuffer.java:372)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.fastasyncworldedit.core.extent.clipboard.DiskOptimizedClipboard.setBiome(DiskOptimizedClipboard.java:341)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.fastasyncworldedit.core.extent.clipboard.DiskOptimizedClipboard.setBiome(DiskOptimizedClipboard.java:333)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard.setBiome(BlockArrayClipboard.java:252)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.extent.AbstractDelegateExtent.setBiome(AbstractDelegateExtent.java:368)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.fastasyncworldedit.core.extent.BlockTranslateExtent.setBiome(BlockTranslateExtent.java:37)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.fastasyncworldedit.core.function.block.BiomeCopy.apply(BiomeCopy.java:30)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.function.CombinedRegionFunction.apply(CombinedRegionFunction.java:108)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.function.visitor.RegionVisitor.apply(RegionVisitor.java:172)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.function.visitor.RegionVisitor.resume(RegionVisitor.java:158)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.function.operation.Operations.completeBlindly(Operations.java:74)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.function.operation.ForwardExtentCopy.resume(ForwardExtentCopy.java:421)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.function.operation.Operations.complete(Operations.java:41)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at pl.krifix.game.editor.schematic.SchematicManager.lambda$saveSchematic$1(SchematicManager.java:67)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftTask.run(CraftTask.java:99)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:58)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at java.base/java.lang.Thread.run(Thread.java:833)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: java.lang.IndexOutOfBoundsException
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at java.base/java.nio.Buffer.checkIndex(Buffer.java:749)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at java.base/java.nio.DirectByteBuffer.putChar(DirectByteBuffer.java:532)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.fastasyncworldedit.core.extent.clipboard.DiskOptimizedClipboard.setBlock(DiskOptimizedClipboard.java:683)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard.setBlock(BlockArrayClipboard.java:220)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.fastasyncworldedit.core.extent.BlockTranslateExtent.setBlock(BlockTranslateExtent.java:27)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.fastasyncworldedit.core.function.block.SimpleBlockCopy.apply(SimpleBlockCopy.java:20)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.function.CombinedRegionFunction.apply(CombinedRegionFunction.java:108)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.function.visitor.RegionVisitor.apply(RegionVisitor.java:172)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.function.visitor.RegionVisitor.resume(RegionVisitor.java:158)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.function.operation.Operations.completeBlindly(Operations.java:74)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.function.operation.ForwardExtentCopy.resume(ForwardExtentCopy.java:421)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.sk89q.worldedit.function.operation.Operations.complete(Operations.java:41)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at pl.krifix.game.editor.schematic.SchematicManager.lambda$saveSchematic$1(SchematicManager.java:67)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftTask.run(CraftTask.java:99)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:58)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
[18:51:39] [Async-6 - IgrzyskaSmierciBukkit/WARN]: 	at java.base/java.lang.Thread.run(Thread.java:833)

Previously i closed discussion because I thought issue was solved. I did not get any error message, only unresolved method. I didn't test it properly, my bad, sorry. This time I'll test it.

[SirYwell]

We don't really update the adapters for 1.16.5 anymore, that's why newer versions are failing. But older versions supporting 1.16.5 might contain bugs that are only fixed in newer builds.

[Krifix-repo]

Ouch, so.. what can I do now? I have to stick to version 1.16.5, because newer versions are not acceptable for network I am developing plugin onto. Maybe some older version of FAWE? There is a chance that older versions might not contain this bug (i hope).