Rendering fails 1.16.1

[unsupervisednn]

Command

Environment info

• BlockMap version: 2.1.0
• Java version: java -version

  openjdk version "12.0.1" 2019-04-16
  OpenJDK Runtime Environment (build 12.0.1+12)

• Operating system: Replace me

  Darwin Kernel Version 19.3.0: Thu Jan  9 20:58:23 PST 2020; root:xnu-6153.81.5~1/RELEASE_X86_64 x86_64
  macOS 10.15.3 Catalina

Description

Can't finish render any dimension without errors like the following:

20-07-23 15:15:03 WARN  LevelMetadata [501] - Could not access map map_143.dat
java.lang.ClassCastException: class java.lang.String cannot be cast to class java.lang.Number (java.lang.String and java.lang.Number are in module java.base of loader 'bootstrap')
    at de.piegames.blockmap.world.LevelMetadata.loadFromWorld(LevelMetadata.java:496) [blockmap.jar:?]
    at de.piegames.blockmap.standalone.CommandLineMain$CommandServer.call(CommandLineMain.java:379) [blockmap.jar:?]
    at de.piegames.blockmap.standalone.CommandLineMain$CommandServer.call(CommandLineMain.java:277) [blockmap.jar:?]
    at picocli.CommandLine.executeUserObject(CommandLine.java:1743) [blockmap.jar:?]
    at picocli.CommandLine.access$900(CommandLine.java:145) [blockmap.jar:?]
    at picocli.CommandLine$RunLast.handle(CommandLine.java:2101) [blockmap.jar:?]
    at picocli.CommandLine$RunLast.handle(CommandLine.java:2068) [blockmap.jar:?]
    at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:1935) [blockmap.jar:?]
    at picocli.CommandLine.execute(CommandLine.java:1864) [blockmap.jar:?]
    at de.piegames.blockmap.standalone.CommandLineMain.mainWithoutQuit(CommandLineMain.java:415) [blockmap.jar:?]
    at de.piegames.blockmap.standalone.CommandLineMain.main(CommandLineMain.java:419) [blockmap.jar:?]

20-07-23 15:15:03 WARN  LevelMetadata [454] - r.2.-10.mca is empty?!
20-07-23 15:15:03 WARN  LevelMetadata [454] - r.1.-10.mca is empty?!

Steps to reproduce

{
    "output dir": "./rendered-web",
    "server": {
        "server name": "Minecraaaaaaft",
        "server description": "The best server in the world",
        "server address": "127.0.0.1",
        "max players": 5
    },
    "worlds": [
        {
            "name": "End",
            "input dir": "../lambdacraft-server-1.16/world",
            "dimension": "END",
            "force": false
        }
    ]
}

1. java -jar blockmap-2.1.0.jar render-many config.json

[unsupervisednn]

Sample region that it said was empty r.2.-10.mca.zip

[piegamesde]

The map error should not be critical to the rendering process. Apart from that, I fixed that error yesterday, it's the latest commit on the master branch.

About the empty region warning, as the log comes from LevelMetadata, it's probably about poi/r.2.-10.mca instead of region/r.2.-10.mca. I'll improve the log messages.

[piegamesde]

Closing now as the fix has been released.