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Author Topic: java error java.util.concurrent.ExecutionException  (Read 267 times)

Dragonling

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java error java.util.concurrent.ExecutionException
« on: January 06, 2017, 12:16:09 PM »
Hi all
I have a server that is showing issues.
they are not complete crashes but annoying none the less.

Environment stats.
server = 32G mem, 8 cpu, OS server 2012R2, HDD C=SSD 120G, MC storage SSD 250G, 1G Lan connection only.
minecraft set to "-Xmx4096m" "4G memory"
Users = 5 at the most
home server with no external internet routing for MineCraft players.

Server is running Rainbow build #149 "1.11.2

Issue is when opening boxes or furnaces there is an error only on the server, the player just sees the the chest or furnace does not open.
If the player waits until furnace is done or warps away and returns then there is a chance the chest/furnace is accessible.

error below
=============
[09:57:19] [FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
        at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.7.0_80]
        at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.7.0_80]
        at h.a(SourceFile:47) [h.class:?]
        at net.minecraft.server.MinecraftServer.D(SourceFile:606) [MinecraftServer.class:?]
        at lh.D(SourceFile:335) [lh.class:?]
        at net.minecraft.server.MinecraftServer.C(SourceFile:562) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(SourceFile:466) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.7.0_80]
Caused by: java.lang.NullPointerException
        at asn.a(SourceFile:100) ~[asn.class:?]
        at ly.handler$onContainerOpen$zzb000(SourceFile:277) ~[ly.class:?]
        at ly.a(SourceFile) ~[ly.class:?]
        at anu.a(SourceFile:118) ~[anu.class:?]
        at lz.redirect$hookInteract$zzm000(SourceFile:53) ~[lz.class:?]
        at lz.a(SourceFile:317) ~[lz.class:?]
        at mi.a(SourceFile:632) ~[mi.class:?]
        at jm.a(SourceFile:55) ~[jm.class:?]
        at jm.a(SourceFile:11) ~[jm.class:?]
        at fo$1.run(SourceFile:13) ~[fo$1.class:?]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:1.7.0_80]
        at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.7.0_80]
        at h.a(SourceFile:46) ~[h.class:?]
=====================

What I have tried:
Copied server to a different HDD,
Copied server to another server completely.
removed all plugins
removed resource pack
Tried different versions of Java 6,7,8
Tried different builds of rainbow builds.
Tried to use a new "blank server" with default settings.

The last stable server I can run is "Rainbow Mod 1.10.2#100" 1.10.2
This server does not have the Java error.


Some assistance or direction would be nice, I do not see any logs other than the crash logs, the server has not crashed in a long time so those are of no help.

thanks in advance
-Z

 


CodeCrafter47

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Re: java error java.util.concurrent.ExecutionException
« Reply #1 on: January 06, 2017, 01:14:59 PM »
Care to try build #151 of Rainbow. I hope it fixes your issue.

Dragonling

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Re: java error java.util.concurrent.ExecutionException
« Reply #2 on: January 06, 2017, 04:18:00 PM »
Thanks CodeCrafter47 for the quick turnaround.

What I tested and the results.

copied the server to another location, updated the rainbow.jar to ver #151 "on java 7.080"
ran "Runit.bat" file
logged on to game and tried to replicate the error: Cannot replicate error

stopped game
added plugins
ran "Runit.bat" file
logged on to game and tried to replicate the error: Cannot replicate error.

selected Java 8.091
ran "Runit.bat" file
logged on to game and tried to replicate the error: Cannot replicate error.

Interesting side note, backpack used to always reset to "empty" upon logging off the server, I originally thought that this was by design to limit data space but it seems that what ever was done in this update fixed the backpack as well.


the only error is
========
[13:49:52] [INFO]: Backpack playername had 0 of Item ID adn@31ee2fdb -- removing

===========
I removed the other same 53 lines of repeated error

Shut down server
removed the files in "backpacks" folder and restarted server.
allowed MC to rebuild the "Backpack" .dat files Upon request.
backpack now works from a players perspective when dropped or logging off and back on.

Server shows
"[INFO]: Backpack playername had 0 of Item ID adn@31ee2fdb -- removing"
but it does work.

super thanks!!!!! :)
-Z


CodeCrafter47

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Re: java error java.util.concurrent.ExecutionException
« Reply #3 on: January 07, 2017, 08:01:17 AM »
That's right, I fixed the backpack too, as it was affected by a similar error.

Build #153 removes the warning too.

Dragonling

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Re: java error java.util.concurrent.ExecutionException
« Reply #4 on: January 07, 2017, 11:25:11 AM »
Thanks again CodeCrafter47
This indeed removed the "INFO".

build #153 is stable and does not display java INFO or warning or errors.

Loaded Plugins are:
WarpSigns
PluginBukketBridge
RainbowOrigionals
CoalDiamonds v1.1
SavageDeathChest v1.6.2

Super thanks for all the time and assistance.
-Z

 

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