Trying to debug an issue-- `Failed to find main class " -Xmx16G"` #3083

robert-clayton · 2024-09-29T10:31:10Z

robert-clayton
Sep 29, 2024

Been trying all sorts of things trying to get this to work, any help would be appreciated. Keep running into this same issue, no matter the java version I try. :(

Output from docker compose up

mc-1      | [init] Running as uid=1000 gid=1000 with /data as 'drwxr-xr-x. 1 1000 966 500 Sep 29 09:56 /data'
mc-1      | [init] Resolved version given 1.20.1 into 1.20.1
mc-1      | [init] Looking for Feed-The-Beast / CurseForge server modpack.
mc-1      | [init] detected FTB, changing properties path to /data/FeedTheBeast/server.properties
mc-1      | [init] Setting initial memory to 4G and max to 16G
mc-1      | [init] Running FTB /data/FeedTheBeast/start.sh in /data/FeedTheBeast ...
mc-1      | Start script generated by ServerPackCreator 6.3.9.
mc-1      | To change the launch settings of this server, such as JVM args / flags, Minecraft version, modloader version etc., edit the variables.txt-file.
mc-1      | 
mc-1      | Running Forge checks and setup...
mc-1      | Generating user_jvm_args.txt from variables...
mc-1      | Edit JAVA_ARGS in your variables.txt. Do not edit user_jvm_args.txt directly!
mc-1      | Manually made changes to user_jvm_args.txt will be lost in the nether!
mc-1      | server.jar could not be found.
mc-1      | Downloading server.jar
mc-1      | from https://github.com/neoforged/ServerStarterJar/releases/latest/download/server.jar
######################################################################## 100.0%           
mc-1      | Download complete.
mc-1      | true
mc-1      | 
mc-1      | 
mc-1      | Starting server...
mc-1      | Minecraft version:              1.20.1
mc-1      | Modloader:                      Forge
mc-1      | Modloader version:              47.3.7
mc-1      | LegacyFabric Installer Version: 1.0.0
mc-1      | Fabric Installer Version:       1.0.1
mc-1      | Quilt Installer Version:        0.9.2
mc-1      | Java Args:                       -Xmx16G -Xms4G  
mc-1      | Additional Args:                -Dlog4j2.formatMsgNoLookups=true
mc-1      | Java Path:                      java
mc-1      | Wait For User Input:            true
mc-1      | Run Command:       java -Dlog4j2.formatMsgNoLookups=true @user_jvm_args.txt -Djava.security.manager=allow -Dfml.queryResult=confirm -jar server.jar --installer-force --installer https://files.minecraftforge.net/maven/net/minecraftforge/forge/1.20.1-47.3.7/forge-1.20.1-47.3.7-installer.jar nogui
mc-1      | Java version:
mc-1      | openjdk version "17.0.11" 2024-04-16
mc-1      | OpenJDK Runtime Environment Temurin-17.0.11+9 (build 17.0.11+9)
mc-1      | OpenJDK 64-Bit Server VM Temurin-17.0.11+9 (build 17.0.11+9, mixed mode, sharing)
mc-1      | 
mc-1      | Exception in thread "main" java.lang.Exception: Failed to find main class " -Xmx16G"
mc-1      | 	at net.neoforged.serverstarterjar.Main.mainLaunch(Main.java:254)
mc-1      | 	at net.neoforged.serverstarterjar.Main.main(Main.java:70)
mc-1      | 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
mc-1      | 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
mc-1      | 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
mc-1      | 	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
mc-1      | 	at net.neoforged.serverstarterjar.Main8.main(Main8.java:19)
mc-1      | Caused by: java.lang.ClassNotFoundException:  -Xmx16G
mc-1      | 	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
mc-1      | 	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
mc-1      | 	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
mc-1      | 	at java.base/java.lang.Class.forName0(Native Method)
mc-1      | 	at java.base/java.lang.Class.forName(Class.java:375)
mc-1      | 	at net.neoforged.serverstarterjar.Main.mainLaunch(Main.java:252)
mc-1      | 	... 6 more

docker-compose.yml

networks:
  minecraft-network:
    driver: bridge
    ipam:
      config:
        - subnet: 172.18.0.0/16

services:
  lazymc:
    image: ghcr.io/joesturge/lazymc-docker-proxy:latest
    networks:
      minecraft-network:
        ipv4_address: 172.18.0.2
    restart: unless-stopped
    volumes:
      - ./data:/server:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
    ports:
      - "25565:25565"
  mc:
    image: itzg/minecraft-server:java17-jdk
    networks:
      minecraft-network:
        ipv4_address: 172.18.0.3
    labels:
      - lazymc.enabled=true
      - lazymc.group=mc
      - lazymc.server.address=mc:25565
      - lazymc.public.version=1.20.1
      - lazymc.public.protocol=760
      - lazymc.server.forge=true
    tty: true
    stdin_open: true
    restart: no
    environment:
      EULA: "TRUE"
      VERSION: "1.20.1"
      INIT_MEMORY: "4G"
      MAX_MEMORY: "16G"
      RCON_PASSWORD: ####
      TYPE: CURSEFORGE
      CF_SERVER_MOD: /modpacks/BMC4v32.5.zip
    volumes:
      - ./data:/data
      - ./modpacks:/modpacks:ro

robert-clayton · 2024-09-29T10:35:08Z

robert-clayton
Sep 29, 2024
Author

Would provide more info, but not sure what's relevant. Currently have openjdk 17 installed, running this docker container on a fedora41 workstation, trying to get a Better Minecraft server up and running with plans to shove it onto my NAS for life

6 replies

robert-clayton Sep 29, 2024
Author

mc-1      | + export HOME=/data
mc-1      | + HOME=/data
mc-1      | ++ id -u
mc-1      | ++ id -g
mc-1      | ++ ls -lnd /data
mc-1      | + log 'Running as uid=1000 gid=1000 with /data as '\''drwxr-xr-x. 1 1000 966 500 Sep 29 09:56 /data'\'''
mc-1      | + local oldState
mc-1      | ++ shopt -po xtrace
mc-1      | + oldState='set -o xtrace'
mc-1      | + shopt -u -o xtrace
mc-1      | [init] 2024-09-29 18:09:48+00:00 Running as uid=1000 gid=1000 with /data as 'drwxr-xr-x. 1 1000 966 500 Sep 29 09:56 /data'
mc-1      | + '[' '!' -e /data/eula.txt ']'
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + isTrue true
mc-1      | + case "${1,,}" in
mc-1      | + return 0
mc-1      | + set +x
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + [[ -n '' ]]
mc-1      | + fixJavaPath
mc-1      | + which java
mc-1      | + cd /data
mc-1      | + export DECLARED_TYPE=CURSEFORGE
mc-1      | + DECLARED_TYPE=CURSEFORGE
mc-1      | + export DECLARED_VERSION=1.20.1
mc-1      | + DECLARED_VERSION=1.20.1
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + : ''
mc-1      | + case "${TYPE^^}" in
mc-1      | + MOD_PLATFORM=CURSEFORGE
mc-1      | + [[ -n CURSEFORGE ]]
mc-1      | + case "${MOD_PLATFORM^^}" in
mc-1      | + exec /start-deployCF
mc-1      | + [[ 1.20.1 == LATEST ]]
mc-1      | + resolveVersion
mc-1      | + givenVersion=1.20.1
mc-1      | ++ mc-image-helper resolve-minecraft-version 1.20.1
mc-1      | [mc-image-helper] 18:09:49.307 DEBUG : JSON FETCH: uri=https://launchermeta.mojang.com/mc/game/version_manifest_v2.json headers=[user-agent: itzg/mc-image-helper/1.39.3 (cmd=resolve-minecraft-version), x-fetch-session: 974ef016-a2aa-4874-9b8e-59f2efd124f6, accept: application/json, host: launchermeta.mojang.com]
mc-1      | [mc-image-helper] 18:09:49.405 DEBUG : Resolved given Minecraft version 1.20.1 to 1.20.1
mc-1      | + VERSION=1.20.1
mc-1      | + log 'Resolved version given 1.20.1 into 1.20.1'
mc-1      | + local oldState
mc-1      | ++ shopt -po xtrace
mc-1      | + oldState='set -o xtrace'
mc-1      | + shopt -u -o xtrace
mc-1      | [init] 2024-09-29 18:09:49+00:00 Resolved version given 1.20.1 into 1.20.1
mc-1      | + : /data/FeedTheBeast
mc-1      | + export FTB_BASE_DIR
mc-1      | + legacyJavaFixerUrl=https://files.minecraftforge.net/maven/net/minecraftforge/lex/legacyjavafixer/1.0/legacyjavafixer-1.0.jar
mc-1      | + export TYPE=CURSEFORGE
mc-1      | + TYPE=CURSEFORGE
mc-1      | + FTB_SERVER_MOD=/modpacks/BMC4v32.5.zip
mc-1      | + log 'Looking for Feed-The-Beast / CurseForge server modpack.'
mc-1      | + local oldState
mc-1      | ++ shopt -po xtrace
mc-1      | + oldState='set -o xtrace'
mc-1      | + shopt -u -o xtrace
mc-1      | [init] 2024-09-29 18:09:49+00:00 Looking for Feed-The-Beast / CurseForge server modpack.
mc-1      | + [[ ! -n /modpacks/BMC4v32.5.zip ]]
mc-1      | + isTrue true
mc-1      | + case "${1,,}" in
mc-1      | + return 0
mc-1      | ++ findStartScript
mc-1      | ++ entryScriptExpr=(-name ServerStart.sh -o -name serverstart.sh -o -name ServerStartLinux.sh -o -name LaunchServer.sh -o -name server-start.sh -o -name SERVER-START.sh -o -name start-server.sh -o -name startserver.sh -o -name StartServer.sh -o -name run.sh -o -name start.sh -o -name launch.sh)
mc-1      | ++ '[' -d /data/FeedTheBeast ']'
mc-1      | ++ find /data/FeedTheBeast '(' -name ServerStart.sh -o -name serverstart.sh -o -name ServerStartLinux.sh -o -name LaunchServer.sh -o -name server-start.sh -o -name SERVER-START.sh -o -name start-server.sh -o -name startserver.sh -o -name StartServer.sh -o -name run.sh -o -name start.sh -o -name launch.sh ')' -print -quit
mc-1      | + startScript=/data/FeedTheBeast/start.sh
mc-1      | + [[ ! -n /data/FeedTheBeast/start.sh ]]
mc-1      | + [[ ! -n /data/FeedTheBeast/start.sh ]]
mc-1      | ++ find /data/FeedTheBeast -type f -name server-setup-config.yaml
mc-1      | + serverSetupConfig=
mc-1      | + [[ -n '' ]]
mc-1      | + FTB_SERVER_START=/data/FeedTheBeast/start.sh
mc-1      | + export FTB_SERVER_START
mc-1      | ++ dirname /data/FeedTheBeast/start.sh
mc-1      | + FTB_DIR=/data/FeedTheBeast
mc-1      | + export FTB_DIR
mc-1      | + chmod a+x /data/FeedTheBeast/start.sh
mc-1      | + grep fml.queryResult=confirm /data/FeedTheBeast/start.sh
mc-1      | + sed -i 's/.*read.*Restart now/#\0/' /data/FeedTheBeast/start.sh
mc-1      | + legacyJavaFixerPath=/data/FeedTheBeast/mods/legacyjavafixer.jar
mc-1      | + isTrue ''
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + export FAMILY=FORGE
mc-1      | + FAMILY=FORGE
mc-1      | + exec /start-setupWorld
mc-1      | + [[ world =~ ^/.*$ ]]
mc-1      | + '[' CURSEFORGE = CURSEFORGE ']'
mc-1      | + worldDest=/data/FeedTheBeast/world
mc-1      | + [[ -n '' ]]
mc-1      | + exec /start-setupDatapack
mc-1      | + out_dir=/data/world/datapacks
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + exec /start-setupModpack
mc-1      | + CURSE_URL_BASE=https://minecraft.curseforge.com/projects
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + handlePackwiz
mc-1      | + [[ -n '' ]]
mc-1      | + handleModpackZip
mc-1      | + [[ -n '' ]]
mc-1      | + handleListings
mc-1      | + usesMods
mc-1      | + case "$FAMILY" in
mc-1      | + return 0
mc-1      | + usesPlugins
mc-1      | + case "$FAMILY" in
mc-1      | + return 1
mc-1      | + usesPlugins
mc-1      | + case "$FAMILY" in
mc-1      | + return 1
mc-1      | + usesMods
mc-1      | + case "$FAMILY" in
mc-1      | + return 0
mc-1      | + outDir=/data/mods
mc-1      | + usesPlugins
mc-1      | + case "$FAMILY" in
mc-1      | + return 1
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + [[ -n '' ]]
mc-1      | + handleGenericPacks
mc-1      | + : ''
mc-1      | + : ''
mc-1      | + : ''
mc-1      | + [[ -n '' ]]
mc-1      | + handleModrinthProjects
mc-1      | + : ''
mc-1      | + : release
mc-1      | + : none
mc-1      | + [[ -v MODRINTH_DOWNLOAD_OPTIONAL_DEPENDENCIES ]]
mc-1      | + [[ -n '' ]]
mc-1      | + usesMods
mc-1      | + case "$FAMILY" in
mc-1      | + return 0
mc-1      | + handleCurseForgeFiles
mc-1      | + args=()
mc-1      | + usesMods
mc-1      | + case "$FAMILY" in
mc-1      | + return 0
mc-1      | + usesPlugins
mc-1      | + case "$FAMILY" in
mc-1      | + return 1
mc-1      | + args+=(--default-category mc-mods)
mc-1      | + case "${TYPE,,}" in
mc-1      | + isFamily HYBRID
mc-1      | + for f in "${@}"
mc-1      | + [[ FORGE == \H\Y\B\R\I\D ]]
mc-1      | + return 1
mc-1      | + mc-image-helper curseforge-files --default-category mc-mods
mc-1      | + [[ -n '' ]]
mc-1      | + exec /start-setupMounts
mc-1      | + isTrue true
mc-1      | + case "${1,,}" in
mc-1      | + return 0
mc-1      | + updateArg=--skip-newer-in-destination
mc-1      | + isTrue true
mc-1      | + case "${1,,}" in
mc-1      | + return 0
mc-1      | + subcommand=sync-and-interpolate
mc-1      | + : /plugins
mc-1      | + : /data/plugins
mc-1      | + usesPlugins
mc-1      | + case "$FAMILY" in
mc-1      | + return 1
mc-1      | + : /mods
mc-1      | + : /data/mods
mc-1      | + usesMods
mc-1      | + case "$FAMILY" in
mc-1      | + return 0
mc-1      | + '[' -d /mods ']'
mc-1      | + : /config
mc-1      | + : /data/config
mc-1      | + '[' -d /config ']'
mc-1      | + exec /start-setupServerProperties
mc-1      | [init] 2024-09-29 18:09:50+00:00 detected FTB, changing properties path to /data/FeedTheBeast/server.properties
mc-1      | + mc-image-helper set-properties --definitions /image/property-definitions.json /data/FeedTheBeast/server.properties
mc-1      | + isTrue ''
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + exec /start-setupEnvVariables
mc-1      | + [[ -v APPEND_OPS ]]
mc-1      | + [[ -v OVERRIDE_OPS ]]
mc-1      | + [[ -v APPEND_WHITELIST ]]
mc-1      | + [[ -v OVERRIDE_WHITELIST ]]
mc-1      | + sharedArgs=(--version="$VERSION")
mc-1      | + [[ -n /data/FeedTheBeast ]]
mc-1      | + sharedArgs+=(--output-directory="$FTB_DIR")
mc-1      | + [[ -v OPS_FILE ]]
mc-1      | + [[ -v OPS ]]
mc-1      | + [[ -v WHITELIST_FILE ]]
mc-1      | + [[ -v WHITELIST ]]
mc-1      | + exec /start-finalExec
mc-1      | + '[' -n '' ']'
mc-1      | + canUseRollingLogs=true
mc-1      | + useFallbackJvmFlag=false
mc-1      | + [[ -n /data/FeedTheBeast ]]
mc-1      | + SERVER_DIR=/data/FeedTheBeast
mc-1      | + versionLessThan 1.7
mc-1      | + mc-image-helper compare-versions 1.20.1 lt 1.7
mc-1      | + return 1
mc-1      | + isFamily VANILLA
mc-1      | + for f in "${@}"
mc-1      | + [[ FORGE == \V\A\N\I\L\L\A ]]
mc-1      | + return 1
mc-1      | + isFamily VANILLA
mc-1      | + for f in "${@}"
mc-1      | + [[ FORGE == \V\A\N\I\L\L\A ]]
mc-1      | + return 1
mc-1      | + isType PURPUR
mc-1      | + for t in "${@}"
mc-1      | + [[ CURSEFORGE == \P\U\R\P\U\R ]]
mc-1      | + return 1
mc-1      | + isType PURPUR
mc-1      | + for t in "${@}"
mc-1      | + [[ CURSEFORGE == \P\U\R\P\U\R ]]
mc-1      | + return 1
mc-1      | + versionLessThan 1.18.1
mc-1      | + mc-image-helper compare-versions 1.20.1 lt 1.18.1
mc-1      | + return 1
mc-1      | + false
mc-1      | + versionLessThan 1.7
mc-1      | + mc-image-helper compare-versions 1.20.1 lt 1.7
mc-1      | + return 1
mc-1      | + versionLessThan 1.18.1
mc-1      | + mc-image-helper compare-versions 1.20.1 lt 1.18.1
mc-1      | + return 1
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + versionLessThan 1.14
mc-1      | + mc-image-helper compare-versions 1.20.1 lt 1.14
mc-1      | + return 1
mc-1      | + [[ '' = false ]]
mc-1      | + expandedDOpts=
mc-1      | + '[' -n '' ']'
mc-1      | + isTrue ''
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + isTrue ''
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + isTrue ''
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + isTrue ''
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + [[ -n 4G ]]
mc-1      | + log 'Setting initial memory to 4G and max to 16G'
mc-1      | + local oldState
mc-1      | ++ shopt -po xtrace
mc-1      | + oldState='set -o xtrace'
mc-1      | + shopt -u -o xtrace
mc-1      | [init] 2024-09-29 18:09:54+00:00 Setting initial memory to 4G and max to 16G
mc-1      | + [[ -n 4G ]]
mc-1      | + JVM_OPTS='-Xms4G '
mc-1      | + [[ -n 16G ]]
mc-1      | + JVM_OPTS='-Xmx16G -Xms4G '
mc-1      | + versionLessThan b1.8
mc-1      | + mc-image-helper compare-versions 1.20.1 lt b1.8
mc-1      | + return 1
mc-1      | + versionLessThan 1.7
mc-1      | + mc-image-helper compare-versions 1.20.1 lt 1.7
mc-1      | + return 1
mc-1      | + rm -f /data/.mc-health.env
mc-1      | + mcServerRunnerArgs=(--stop-duration "${STOP_DURATION:-60}s")
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + [[ -n '' ]]
mc-1      | + isTrue ''
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + [[ CURSEFORGE == \C\U\R\S\E\F\O\R\G\E ]]
mc-1      | + [[ -n '' ]]
mc-1      | + [[ CURSEFORGE == \C\U\R\S\E\F\O\R\G\E ]]
mc-1      | + mcServerRunnerArgs+=(--shell bash)
mc-1      | + copyFilesForCurseForge
mc-1      | + '[' '!' -e /data/FeedTheBeast/server-icon.png ']'
mc-1      | + cp -f /data/eula.txt /data/FeedTheBeast/
mc-1      | + cat
mc-1      | + '[' -f /data/FeedTheBeast/settings.cfg ']'
mc-1      | + cd /data/FeedTheBeast
mc-1      | + log 'Running FTB /data/FeedTheBeast/start.sh in /data/FeedTheBeast ...'
mc-1      | + local oldState
mc-1      | ++ shopt -po xtrace
mc-1      | + oldState='set -o xtrace'
mc-1      | + shopt -u -o xtrace
mc-1      | [init] 2024-09-29 18:09:55+00:00 Running FTB /data/FeedTheBeast/start.sh in /data/FeedTheBeast ...
mc-1      | + finalArgs=/data/FeedTheBeast/start.sh
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + isTrue false
mc-1      | + case "${1,,}" in
mc-1      | + return 1
mc-1      | + '[' -f /data/FeedTheBeast/variables.txt ']'
mc-1      | + JVM_ARGS=' -Xmx16G -Xms4G  '
mc-1      | + JVM_ARGS=' -Xmx16G -Xms4G  '
mc-1      | + sed -i 's~JAVA_ARGS=.*~JAVA_ARGS=" -Xmx16G -Xms4G  "~' /data/FeedTheBeast/variables.txt
mc-1      | + exec mc-server-runner --stop-duration 60s --shell bash /data/FeedTheBeast/start.sh
mc-1      | Start script generated by ServerPackCreator 6.3.9.
mc-1      | To change the launch settings of this server, such as JVM args / flags, Minecraft version, modloader version etc., edit the variables.txt-file.
mc-1      | 
mc-1      | Running Forge checks and setup...
mc-1      | Generating user_jvm_args.txt from variables...
mc-1      | Edit JAVA_ARGS in your variables.txt. Do not edit user_jvm_args.txt directly!
mc-1      | Manually made changes to user_jvm_args.txt will be lost in the nether!
mc-1      | server.jar could not be found.
mc-1      | Downloading server.jar
mc-1      | from https://github.com/neoforged/ServerStarterJar/releases/latest/download/server.jar
######################################################################## 100.0%           
mc-1      | Download complete.
mc-1      | true
mc-1      | 
mc-1      | 
mc-1      | Starting server...
mc-1      | Minecraft version:              1.20.1
mc-1      | Modloader:                      Forge
mc-1      | Modloader version:              47.3.7
mc-1      | LegacyFabric Installer Version: 1.0.0
mc-1      | Fabric Installer Version:       1.0.1
mc-1      | Quilt Installer Version:        0.9.2
mc-1      | Java Args:                       -Xmx16G -Xms4G  
mc-1      | Additional Args:                -Dlog4j2.formatMsgNoLookups=true
mc-1      | Java Path:                      java
mc-1      | Wait For User Input:            true
mc-1      | Run Command:       java -Dlog4j2.formatMsgNoLookups=true @user_jvm_args.txt -Djava.security.manager=allow -Dfml.queryResult=confirm -jar server.jar --installer-force --installer https://files.minecraftforge.net/maven/net/minecraftforge/forge/1.20.1-47.3.7/forge-1.20.1-47.3.7-installer.jar nogui
mc-1      | Java version:
mc-1      | openjdk version "17.0.11" 2024-04-16
mc-1      | OpenJDK Runtime Environment Temurin-17.0.11+9 (build 17.0.11+9)
mc-1      | OpenJDK 64-Bit Server VM Temurin-17.0.11+9 (build 17.0.11+9, mixed mode, sharing)
mc-1      | 
mc-1      | Exception in thread "main" java.lang.Exception: Failed to find main class " -Xmx16G"
mc-1      | 	at net.neoforged.serverstarterjar.Main.mainLaunch(Main.java:254)
mc-1      | 	at net.neoforged.serverstarterjar.Main.main(Main.java:70)
mc-1      | 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
mc-1      | 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
mc-1      | 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
mc-1      | 	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
mc-1      | 	at net.neoforged.serverstarterjar.Main8.main(Main8.java:19)
mc-1      | Caused by: java.lang.ClassNotFoundException:  -Xmx16G
mc-1      | 	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
mc-1      | 	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
mc-1      | 	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
mc-1      | 	at java.base/java.lang.Class.forName0(Native Method)
mc-1      | 	at java.base/java.lang.Class.forName(Class.java:375)
mc-1      | 	at net.neoforged.serverstarterjar.Main.mainLaunch(Main.java:252)
mc-1      | 	... 6 more
mc-1      | Exiting...
mc-1      | Press any key to continue
mc-1 exited with code 137

itzg Sep 29, 2024
Maintainer

Thanks for providing that. Unfortunately the logs don't reveal specific clues so I would need to dig into the behavior further, but the mode you're using is deprecated.

Can you please switch to the supported mode using https://docker-minecraft-server.readthedocs.io/en/latest/types-and-platforms/mod-platforms/auto-curseforge/

robert-clayton Sep 30, 2024
Author

I was unsure of how to get the API key mentioned in those docs, so I swapped to FORGE. Could you please elaborate on how to go about it? I'd love to try the newer mode.

itzg Sep 30, 2024
Maintainer

It's described at the top of the section https://docker-minecraft-server.readthedocs.io/en/latest/types-and-platforms/mod-platforms/auto-curseforge/#api-key

robert-clayton Oct 2, 2024
Author

Upside is it's now working when I give it no modpacks to install. Downside is that it's still failing for the most popular modpack I found on forge... swapped to auto forge type and specified slug & file ID and got this error. :(

.env

CF_API_KEY=###
RCON_PASSWORD=###
VERSION="1.20.1"
INIT_MEMORY=4G
MAX_MEMORY=16G
CF_SLUG=better-mc-forge-bmc4
CF_FILE_ID=5699281

docker-compose.yml

networks:
  minecraft-network:
    driver: bridge
    ipam:
      config:
        - subnet: 172.18.0.0/16

services:
  lazymc:
    image: ghcr.io/joesturge/lazymc-docker-proxy:latest
    networks:
      minecraft-network:
        ipv4_address: 172.18.0.2
    restart: unless-stopped
    volumes:
      - ./data:/server:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
    ports:
      - "25565:25565"
  mc:
    image: itzg/minecraft-server:java17-jdk
    networks:
      minecraft-network:
        ipv4_address: 172.18.0.3
    labels:
      - lazymc.enabled=true
      - lazymc.group=mc
      - lazymc.server.address=mc:25565
      - lazymc.public.version=${VERSION}
      - lazymc.public.protocol=760
      - lazymc.server.forge=true
    tty: true
    stdin_open: true
    restart: no
    environment:
      EULA: "TRUE"
      VERSION: ${VERSION}
      CF_API_KEY: ${CF_API_KEY}
      RCON_PASSWORD: ${RCON_PASSWORD}
      TYPE: AUTO_CURSEFORGE
      CF_SLUG: ${CF_SLUG}
      CF_FILE_ID: ${CF_FILE_ID}
      INIT_MEMORY: ${INIT_MEMORY}
      MAX_MEMORY: ${MAX_MEMORY}
    volumes:
      # attach the relative directory 'data' to the container's /data path
      - ./data:/data

log

mc-1      | [init] Running as uid=1000 gid=1000 with /data as 'drwxr-xr-x. 1 1000 966 266 Oct  2 02:51 /data'
mc-1      | [mc-image-helper] 02:52:54.244 INFO  : Processing modpack 'BMC4 FORGE 1.20.1 Server Pack v32.5' (better-mc-forge-bmc4) @ 876781:5699281
mc-1      | [mc-image-helper] 02:52:54.714 ERROR : 'install-curseforge' command failed. Version is 1.39.3
mc-1      | com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of `me.itzg.helpers.curseforge.model.ManifestFileRef` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('mods\adorabuild-structures-2.7.0-forge-1.20.1.jar')
mc-1      |  at [Source: REDACTED (`StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION` disabled); line: 2, column: 15] (through reference chain: me.itzg.helpers.curseforge.model.MinecraftModpackManifest["files"]->java.util.ArrayList[0])
mc-1      | 	at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:63)
mc-1      | 	at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1754)
mc-1      | 	at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1379)
mc-1      | 	at com.fasterxml.jackson.databind.deser.std.StdDeserializer._deserializeFromString(StdDeserializer.java:311)
mc-1      | 	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromString(BeanDeserializerBase.java:1588)
mc-1      | 	at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:197)
mc-1      | 	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:187)
mc-1      | 	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer._deserializeFromArray(CollectionDeserializer.java:361)
mc-1      | 	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:246)
mc-1      | 	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:30)
mc-1      | 	at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:129)
mc-1      | 	at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:310)
mc-1      | 	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:177)
mc-1      | 	at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:342)
mc-1      | 	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4905)
mc-1      | 	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3885)
mc-1      | 	at me.itzg.helpers.curseforge.CurseForgeInstaller.extractModpackManifest(CurseForgeInstaller.java:979)
mc-1      | 	at me.itzg.helpers.curseforge.CurseForgeInstaller.resolveModpackFileAndProcess(CurseForgeInstaller.java:399)
mc-1      | 	at me.itzg.helpers.curseforge.CurseForgeInstaller.installByRetrievingModpackZip(CurseForgeInstaller.java:262)
mc-1      | 	at me.itzg.helpers.curseforge.CurseForgeInstaller.lambda$install$3(CurseForgeInstaller.java:181)
mc-1      | 	at me.itzg.helpers.curseforge.CurseForgeInstaller.install(CurseForgeInstaller.java:218)
mc-1      | 	at me.itzg.helpers.curseforge.CurseForgeInstaller.install(CurseForgeInstaller.java:180)
mc-1      | 	at me.itzg.helpers.curseforge.InstallCurseForgeCommand.call(InstallCurseForgeCommand.java:213)
mc-1      | 	at me.itzg.helpers.curseforge.InstallCurseForgeCommand.call(InstallCurseForgeCommand.java:29)
mc-1      | 	at picocli.CommandLine.executeUserObject(CommandLine.java:2045)
mc-1      | 	at picocli.CommandLine.access$1500(CommandLine.java:148)
mc-1      | 	at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2465)
mc-1      | 	at picocli.CommandLine$RunLast.handle(CommandLine.java:2457)
mc-1      | 	at picocli.CommandLine$RunLast.handle(CommandLine.java:2419)
mc-1      | 	at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2277)
mc-1      | 	at picocli.CommandLine$RunLast.execute(CommandLine.java:2421)
mc-1      | 	at picocli.CommandLine.execute(CommandLine.java:2174)
mc-1      | 	at me.itzg.helpers.McImageHelper.main(McImageHelper.java:159)
mc-1      | [init] ERROR failed to auto-install CurseForge modpack

itzg · 2024-10-05T18:35:33Z

itzg
Oct 5, 2024
Maintainer

I have updated the BMC4 Forge example to the latest version:

https://github.com/itzg/docker-minecraft-server/blob/master/examples/bmc4/docker-compose.yml

FYI it uses Modrinth because I prefer them much more than CurseForge. Also, no API key needed.

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Trying to debug an issue-- Failed to find main class " -Xmx16G" #3083

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Trying to debug an issue-- `Failed to find main class " -Xmx16G"` #3083

robert-clayton
Sep 29, 2024

Replies: 2 comments 6 replies

robert-clayton
Sep 29, 2024
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robert-clayton Sep 29, 2024
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itzg Sep 29, 2024
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itzg Sep 30, 2024
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Oct 5, 2024
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