Limit max memory for servers

-server forces aggressive optimization in Java which reduces startup
speed

bukkit/pom.xml

@@ -353,5 +353,47 @@
             <optional>true</optional>
             <scope>provided</scope>
         </dependency>
+
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>testcontainers</artifactId>
+            <version>1.16.3</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>mockserver</artifactId>
+            <version>1.16.3</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.mock-server</groupId>
+            <artifactId>mockserver-client-java</artifactId>
+            <version>5.12.0</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.github.steveice10</groupId>
+            <artifactId>mcprotocollib</artifactId>
+            <version>1.18-2</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.mojang</groupId>
+            <artifactId>authlib</artifactId>
+            <version>3.2.38</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>1.2.10</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 </project>

bukkit/src/test/java/integration/LoginIT.java

@@ -0,0 +1,218 @@
+package integration;
+
+import com.github.steveice10.mc.protocol.MinecraftProtocol;
+import com.github.steveice10.packetlib.Session;
+import com.github.steveice10.packetlib.event.session.DisconnectedEvent;
+import com.github.steveice10.packetlib.event.session.SessionAdapter;
+import com.github.steveice10.packetlib.packet.Packet;
+import com.github.steveice10.packetlib.tcp.TcpClientSession;
+import com.google.common.io.CharStreams;
+import com.mojang.authlib.EnvironmentParser;
+
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.net.URLConnection;
+import java.nio.charset.StandardCharsets;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+
+import org.junit.Ignore;
+import org.junit.Rule;
+import org.junit.Test;
+import org.mockserver.client.MockServerClient;
+import org.mockserver.model.HttpRequest;
+import org.mockserver.verify.VerificationTimes;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.testcontainers.containers.GenericContainer;
+import org.testcontainers.containers.MockServerContainer;
+import org.testcontainers.containers.output.Slf4jLogConsumer;
+import org.testcontainers.containers.wait.strategy.Wait;
+import org.testcontainers.utility.DockerImageName;
+import org.testcontainers.utility.MountableFile;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.mockserver.model.HttpRequest.request;
+import static org.mockserver.model.HttpResponse.response;
+
+// Warning name is sensitive to the surefire plugin
+public class LoginIT {
+
+    private static final Logger LOG = LoggerFactory.getLogger(LoginIT.class);
+
+    private static final String API_TAG = "mockserver-5.11.2";
+    private static final String API_IMAGE_NAME = "mockserver/mockserver";
+    private static final String API_IMAGE = API_IMAGE_NAME + ':' + API_TAG;
+
+    @Rule
+    public MockServerContainer mockServer = new MockServerContainer(DockerImageName.parse(API_IMAGE))
+        .withReuse(true);
+
+    private static final String SERVER_TAG = "1.18.1@sha256:dd3c8d212de585ec73113a0c0c73ac755ec1ff53e65bb09089061584fac02053";
+    private static final String SERVER_IMAGE_NAME = "ghcr.io/games647/paperclip";
+    private static final String SERVER_IMAGE = SERVER_IMAGE_NAME + ':' + SERVER_TAG;
+
+    private static final String HOME_FOLDER = "/home/nonroot/";
+
+    private static final long MINECRAFT_MAX_MEMORY = 1024 * 1024 * 1024L;
+
+    @Rule
+    public GenericContainer<?> minecraftServer = new GenericContainer<>(DockerImageName.parse(SERVER_IMAGE))
+        .withEnv("JDK_JAVA_OPTIONS", buildJVMFlags())
+        .withExposedPorts(25565)
+        // use server settings that use minimal minecraft log to quickly ramp up the server
+        .withCopyFileToContainer(MountableFile.forClasspathResource("server.properties"), HOME_FOLDER + "server.properties")
+        .withCopyFileToContainer(MountableFile.forClasspathResource("bukkit.yml"), HOME_FOLDER + "bukkit.yml")
+        .withCopyFileToContainer(MountableFile.forClasspathResource("spigot.yml"), HOME_FOLDER + "spigot.yml")
+        // create folders that are volatile
+        .withTmpFs(getTempFS())
+        // Done (XXXXs)! For help, type "help"
+        .waitingFor(
+            Wait.forLogMessage(".*For help, type \"help\"*\\n", 1)
+        )
+        .withReuse(true)
+        .withLogConsumer(new Slf4jLogConsumer(LOG))
+        .withCreateContainerCmdModifier(cmd -> cmd.getHostConfig().withMemory(MINECRAFT_MAX_MEMORY));
+
+    private Map<String, String> getTempFS() {
+        Map<String, String> tmpfs = new HashMap<>();
+        tmpfs.put(HOME_FOLDER + "world", "rw,noexec,nosuid,nodev");
+        tmpfs.put(HOME_FOLDER + "logs", "rw,noexec,nosuid,nodev");
+        return tmpfs;
+    }
+
+    private String buildJVMFlags() {
+        Map<String, String> systemProperties = new HashMap<>();
+        systemProperties.put("com.mojang.eula.agree", Boolean.toString(true));
+
+        // set the Yggdrasil hosts that will also be used by the vanilla server
+        systemProperties.put(EnvironmentParser.PROP_ACCOUNT_HOST, getProxyHost());
+        systemProperties.put(EnvironmentParser.PROP_SESSION_HOST, getProxyHost());
+
+        return systemProperties.entrySet().stream()
+            .map(entry -> "-D" + entry.getKey() + '=' + entry.getValue())
+            .collect(Collectors.joining(" ")) + " -client";
+    }
+
+    @Test
+    public void checkRunning() throws Exception {
+        assertThat(minecraftServer.isRunning(), is(true));
+
+        String host = minecraftServer.getHost();
+        int port = minecraftServer.getMappedPort(25565);
+        Session clientSession = new TcpClientSession(host, port, new MinecraftProtocol());
+        try {
+            CompletableFuture<Boolean> connectionResult = new CompletableFuture<>();
+            clientSession.addListener(new SessionAdapter() {
+                @Override
+                public void packetReceived(Session session, Packet packet) {
+                    LOG.info("Client received: {}", packet.getClass());
+                    connectionResult.complete(true);
+                }
+
+                @Override
+                public void disconnected(DisconnectedEvent event) {
+                    connectionResult.complete(false);
+                }
+            });
+
+            clientSession.connect();
+            assertThat(connectionResult.get(2, TimeUnit.SECONDS), is(true));
+        } finally {
+            clientSession.disconnect("Status test complete.");
+        }
+    }
+
+    private String getProxyHost() {
+        return String.format("https://%s:%d", mockServer.getHost(), mockServer.getServerPort());
+    }
+
+    @Test
+    @Ignore
+    public void autoRegisterNewUser() throws Exception {
+        assertThat(mockServer.isRunning(), is(true));
+
+        try (MockServerClient client = new MockServerClient(mockServer.getHost(), mockServer.getServerPort())) {
+            HttpRequest profileReq = request("/users/profiles/minecraft/" + "username");
+            HttpRequest hasJoinedReq = request()
+                .withPath("/session/minecraft/hasJoined")
+                .withQueryStringParameter("username", "")
+                .withQueryStringParameter("serverId", "")
+                .withQueryStringParameter("ip", "");
+
+            // check call network request times
+            client.verify(profileReq, VerificationTimes.once());
+            client.verify(hasJoinedReq, VerificationTimes.once());
+
+            // Verify order
+            client.verify(profileReq, hasJoinedReq);
+
+            client
+                .when(request()
+                    .withPath("/users/profiles/minecraft/" + "username"))
+                .respond(response()
+                    .withBody("bla"));
+
+            client
+                .when(hasJoinedReq)
+                .respond(response()
+                    .withBody("Test"));
+
+            URLConnection urlConnection = new URL(mockServer.getEndpoint() + "/users/profiles/minecraft/username").openConnection();
+            String out = CharStreams.toString(new InputStreamReader(urlConnection.getInputStream(), StandardCharsets.UTF_8));
+            LOG.info("OUTPUT: {}", out);
+        }
+    }
+
+    @Test
+    @Ignore
+    public void failedJoinedVerification() {
+        // has joined fails
+    }
+
+    @Test
+    @Ignore
+    public void offlineLoginNewUserDisabledRegister() {
+        // auto register disabled, always offline login for new users
+    }
+
+    @Test
+    @Ignore
+    public void offlineLoginNewUser() {
+        // auto register enabled, but no paid account
+    }
+
+    @Test
+    @Ignore
+    public void autoLoginRegistered() {
+        // registered premium user and paid account login in
+    }
+
+    @Test
+    @Ignore
+    public void failedLoginPremiumRegistered() {
+        // registered premium, but tried offline login
+    }
+
+    @Test
+    @Ignore
+    public void offlineLoginRegistered() {
+        // assume registered user marked as offline - tried to login
+    }
+
+    @Test
+    @Ignore
+    public void alreadyOnlineDuplicateOwner() {
+
+    }
+
+    @Test
+    @Ignore
+    public void alreadyOnlineDuplicateCracked() {
+
+    }
+}

bukkit/src/test/resources/bukkit.yml

@@ -0,0 +1,29 @@
+settings:
+  allow-end: false
+  warn-on-overload: true
+  permissions-file: permissions.yml
+  update-folder: update
+  plugin-profiling: false
+  connection-throttle: 4000
+  query-plugins: false
+  deprecated-verbose: default
+  shutdown-message: Server closed
+  minimum-api: none
+spawn-limits:
+  monsters: 70
+  animals: 10
+  water-animals: 5
+  water-ambient: 20
+  water-underground-creature: 5
+  ambient: 15
+chunk-gc:
+  period-in-ticks: 600
+ticks-per:
+  animal-spawns: 400
+  monster-spawns: 1
+  water-spawns: 1
+  water-ambient-spawns: 1
+  water-underground-creature-spawns: 1
+  ambient-spawns: 1
+  autosave: 6000
+aliases: now-in-commands.yml

bukkit/src/test/resources/logback-test.xml

@@ -0,0 +1,14 @@
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="info">
+        <appender-ref ref="STDOUT"/>
+    </root>
+
+    <logger name="org.testcontainers" level="INFO"/>
+    <logger name="com.github.dockerjava" level="WARN"/>
+</configuration>

bukkit/src/test/resources/paper.yml

@@ -0,0 +1,292 @@
+# This is the main configuration file for Paper.
+# As you can see, there's tons to configure. Some options may impact gameplay, so use
+# with caution, and make sure you know what each option does before configuring.
+#
+# If you need help with the configuration or have any questions related to Paper,
+# join us in our Discord or IRC channel.
+#
+# Discord: https://discord.gg/papermc
+# IRC: #paper @ irc.esper.net ( https://webchat.esper.net/?channels=paper )
+# Website: https://papermc.io/
+# Docs: https://paper.readthedocs.org/
+
+verbose: false
+messages:
+  kick:
+    authentication-servers-down: ''
+    connection-throttle: Connection throttled! Please wait before reconnecting.
+    flying-player: Flying is not enabled on this server
+    flying-vehicle: Flying is not enabled on this server
+  no-permission: '&cI''m sorry, but you do not have permission to perform this command.
+    Please contact the server administrators if you believe that this is in error.'
+timings:
+  enabled: false
+  verbose: true
+  url: https://timings.aikar.co/
+  server-name-privacy: false
+  hidden-config-entries: []
+  history-interval: 300
+  history-length: 3600
+  server-name: Unknown Server
+config-version: 24
+settings:
+  max-joins-per-tick: 3
+  track-plugin-scoreboards: false
+  fix-entity-position-desync: true
+  use-display-name-in-quit-message: false
+  load-permissions-yml-before-plugins: true
+  region-file-cache-size: 256
+  enable-player-collisions: false
+  save-empty-scoreboard-teams: false
+  bungee-online-mode: true
+  incoming-packet-spam-threshold: 300
+  use-alternative-luck-formula: false
+  velocity-support:
+    enabled: false
+    online-mode: false
+    secret: ''
+  console-has-all-permissions: false
+  player-auto-save-rate: -1
+  max-player-auto-save-per-tick: -1
+  fix-target-selector-tag-completion: true
+  lag-compensate-block-breaking: true
+  time-command-affects-all-worlds: false
+  log-player-ip-addresses: false
+  console:
+    enable-brigadier-highlighting: false
+    enable-brigadier-completions: false
+  suggest-player-names-when-null-tab-completions: false
+  watchdog:
+    early-warning-every: 5000
+    early-warning-delay: 10000
+  spam-limiter:
+    tab-spam-increment: 1
+    tab-spam-limit: 500
+    recipe-spam-increment: 1
+    recipe-spam-limit: 20
+  book-size:
+    page-max: 2560
+    total-multiplier: 0.98
+  loggers:
+    deobfuscate-stacktraces: true
+  item-validation:
+    display-name: 8192
+    loc-name: 8192
+    lore-line: 8192
+    book:
+      title: 8192
+      author: 8192
+      page: 16384
+  send-full-pos-for-hard-colliding-entities: true
+  async-chunks:
+    threads: -1
+  unsupported-settings:
+    allow-permanent-block-break-exploits: false
+    allow-piston-duplication: false
+    perform-username-validation: true
+    allow-headless-pistons: false
+    allow-permanent-block-break-exploits-readme: This setting controls if players
+      should be able to break bedrock, end portals and other intended to be permanent
+      blocks.
+    allow-piston-duplication-readme: This setting controls if player should be able
+      to use TNT duplication, but this also allows duplicating carpet, rails and potentially
+      other items
+    allow-headless-pistons-readme: This setting controls if players should be able
+      to create headless pistons.
+  packet-limiter:
+    kick-message: '&cSent too many packets'
+    limits: []
+world-settings:
+  default:
+    delay-chunk-unloads-by: 10s
+    disable-teleportation-suffocation-check: true
+    generator-settings:
+      flat-bedrock: true
+    piglins-guard-chests: true
+    should-remove-dragon: false
+    max-auto-save-chunks-per-tick: 24
+    baby-zombie-movement-modifier: 0.5
+    optimize-explosions: false
+    use-vanilla-world-scoreboard-name-coloring: false
+    game-mechanics:
+      scan-for-legacy-ender-dragon: true
+      fix-curing-zombie-villager-discount-exploit: true
+      disable-pillager-patrols: true
+      pillager-patrols:
+        spawn-chance: 0.2
+        spawn-delay:
+          per-player: false
+          ticks: 12000
+        start:
+          per-player: false
+          day: 5
+      disable-chest-cat-detection: true
+      nerf-pigmen-from-nether-portals: false
+      disable-player-crits: true
+      disable-sprint-interruption-on-attack: true
+      shield-blocking-delay: 5
+      disable-end-credits: true
+      disable-unloaded-chunk-enderpearl-exploit: true
+      disable-relative-projectile-velocity: true
+      disable-mob-spawner-spawn-egg-transformation: true
+    prevent-moving-into-unloaded-chunks: false
+    count-all-mobs-for-spawning: false
+    spawn-limits:
+      monster: -1
+      creature: -1
+      ambient: -1
+      axolotls: -1
+      underground_water_creature: -1
+      water_creature: -1
+      water_ambient: -1
+    ender-dragons-death-always-places-dragon-egg: false
+    experience-merge-max-value: -1
+    allow-using-signs-inside-spawn-protection: false
+    wandering-trader:
+      spawn-minute-length: 1200
+      spawn-day-length: 24000
+      spawn-chance-failure-increment: 25
+      spawn-chance-min: 25
+      spawn-chance-max: 75
+    door-breaking-difficulty:
+      zombie:
+      - HARD
+      vindicator:
+      - NORMAL
+      - HARD
+    max-growth-height:
+      cactus: 3
+      reeds: 3
+      bamboo:
+        max: 16
+        min: 11
+    fishing-time-range:
+      MinimumTicks: 100
+      MaximumTicks: 600
+    despawn-ranges: []
+    falling-block-height-nerf: 0
+    tnt-entity-height-nerf: 0
+    slime-spawn-height:
+      swamp-biome:
+        maximum: 70.0
+        minimum: 50.0
+      slime-chunk:
+        maximum: 40.0
+    frosted-ice:
+      enabled: true
+      delay:
+        min: 20
+        max: 40
+    lootables:
+      auto-replenish: false
+      restrict-player-reloot: true
+      reset-seed-on-fill: true
+      max-refills: -1
+      refresh-min: 12h
+      refresh-max: 2d
+    filter-nbt-data-from-spawn-eggs-and-related: true
+    max-entity-collisions: 8
+    disable-creeper-lingering-effect: true
+    duplicate-uuid-resolver: saferegen
+    duplicate-uuid-saferegen-delete-range: 32
+    hopper:
+      cooldown-when-full: true
+      disable-move-event: true
+      ignore-occluding-blocks: false
+    mob-effects:
+      undead-immune-to-certain-effects: true
+      spiders-immune-to-poison-effect: true
+      immune-to-wither-effect:
+        wither: true
+        wither-skeleton: true
+    update-pathfinding-on-block-update: true
+    phantoms-do-not-spawn-on-creative-players: true
+    phantoms-only-attack-insomniacs: true
+    mobs-can-always-pick-up-loot:
+      zombies: false
+      skeletons: false
+    map-item-frame-cursor-update-interval: 10
+    allow-player-cramming-damage: false
+    anticheat:
+      obfuscation:
+        items:
+          hide-itemmeta: false
+          hide-durability: false
+    monster-spawn-max-light-level: -1
+    water-over-lava-flow-speed: 5
+    grass-spread-tick-rate: 1
+    use-faster-eigencraft-redstone: false
+    nether-ceiling-void-damage-height: 0
+    only-players-collide: false
+    allow-vehicle-collisions: true
+    allow-non-player-entities-on-scoreboards: false
+    anti-xray:
+      enabled: false
+      engine-mode: 1
+      max-block-height: 64
+      update-radius: 2
+      lava-obscures: false
+      use-permission: false
+      hidden-blocks: []
+      replacement-blocks: []
+    keep-spawn-loaded: true
+    armor-stands-do-collision-entity-lookups: true
+    parrots-are-unaffected-by-player-movement: false
+    disable-explosion-knockback: true
+    portal-search-radius: 128
+    portal-create-radius: 16
+    portal-search-vanilla-dimension-scaling: true
+    fix-items-merging-through-walls: false
+    disable-thunder: true
+    skeleton-horse-thunder-spawn-chance: 0.01
+    disable-ice-and-snow: true
+    keep-spawn-loaded-range: 10
+    fix-climbing-bypassing-cramming-rule: false
+    container-update-tick-rate: 1
+    fixed-chunk-inhabited-time: -1
+    remove-corrupt-tile-entities: false
+    prevent-tnt-from-moving-in-water: false
+    iron-golems-can-spawn-in-air: false
+    max-leash-distance: 10.0
+    show-sign-click-command-failure-msgs-to-player: false
+    armor-stands-tick: true
+    non-player-arrow-despawn-rate: -1
+    creative-arrow-despawn-rate: -1
+    spawner-nerfed-mobs-should-jump: false
+    entities-target-with-follow-range: false
+    wateranimal-spawn-height:
+      maximum: default
+      minimum: default
+    zombies-target-turtle-eggs: true
+    zombie-villager-infection-chance: -1.0
+    unsupported-settings:
+      fix-invulnerable-end-crystal-exploit: true
+    all-chunks-are-slime-chunks: false
+    mob-spawner-tick-rate: 1
+    map-item-frame-cursor-limit: 128
+    per-player-mob-spawns: true
+    light-queue-size: 20
+    auto-save-interval: -1
+    enable-treasure-maps: false
+    treasure-maps-return-already-discovered: false
+    split-overstacked-loot: true
+    entity-per-chunk-save-limit:
+      experience_orb: -1
+      snowball: -1
+      ender_pearl: -1
+      arrow: -1
+      fireball: -1
+      small_fireball: -1
+    alt-item-despawn-rate:
+      enabled: false
+      items:
+        COBBLESTONE: 300
+    tick-rates:
+      sensor:
+        villager:
+          secondarypoisensor: 40
+      behavior:
+        villager:
+          validatenearbypoi: -1
+    feature-seeds:
+      generate-random-seeds-for-all: false

bukkit/src/test/resources/server.properties

@@ -0,0 +1,50 @@
+#Minecraft server properties
+enable-jmx-monitoring=false
+rcon.port=25575
+gamemode=creative
+enable-command-block=false
+enable-query=false
+level-name=world
+motd=Debug server
+query.port=25565
+pvp=false
+difficulty=peaceful
+network-compression-threshold=256
+require-resource-pack=false
+max-tick-time=60000
+use-native-transport=true
+max-players=2
+online-mode=false
+enable-status=true
+allow-flight=false
+broadcast-rcon-to-ops=true
+view-distance=3
+server-ip=
+resource-pack-prompt=
+allow-nether=false
+server-port=25565
+enable-rcon=false
+sync-chunk-writes=false
+op-permission-level=4
+prevent-proxy-connections=false
+hide-online-players=true
+resource-pack=
+entity-broadcast-range-percentage=10
+simulation-distance=3
+rcon.password=
+player-idle-timeout=0
+debug=true
+force-gamemode=false
+rate-limit=0
+hardcore=false
+white-list=false
+broadcast-console-to-ops=false
+spawn-npcs=false
+spawn-animals=false
+function-permission-level=2
+text-filtering-config=
+spawn-monsters=false
+enforce-whitelist=false
+resource-pack-sha1=
+spawn-protection=0
+max-world-size=1

bukkit/src/test/resources/spigot.yml

@@ -0,0 +1,164 @@
+# This is the main configuration file for Spigot.
+# As you can see, there's tons to configure. Some options may impact gameplay, so use
+# with caution, and make sure you know what each option does before configuring.
+# For a reference for any variable inside this file, check out the Spigot wiki at
+# http://www.spigotmc.org/wiki/spigot-configuration/
+#
+# If you need help with the configuration or have any questions related to Spigot,
+# join us at the Discord or drop by our forums and leave a post.
+#
+# Discord: https://www.spigotmc.org/go/discord
+# Forums: http://www.spigotmc.org/
+
+settings:
+  debug: true
+  bungeecord: false
+  sample-count: 0
+  player-shuffle: 0
+  user-cache-size: 1000
+  save-user-cache-on-stop-only: false
+  moved-wrongly-threshold: 0.0625
+  moved-too-quickly-multiplier: 10.0
+  timeout-time: 60
+  restart-on-crash: false
+  restart-script: ./start.sh
+  netty-threads: 1
+  attribute:
+    maxHealth:
+      max: 2048.0
+    movementSpeed:
+      max: 2048.0
+    attackDamage:
+      max: 2048.0
+  log-villager-deaths: false
+  log-named-deaths: false
+messages:
+  whitelist: You are not whitelisted on this server!
+  unknown-command: Unknown command. Type "/help" for help.
+  server-full: The server is full!
+  outdated-client: Outdated client! Please use {0}
+  outdated-server: Outdated server! I'm still on {0}
+  restart: Server is restarting
+advancements:
+  disable-saving: true
+  disabled: []
+commands:
+  replace-commands: []
+  spam-exclusions: []
+  silent-commandblock-console: false
+  log: false
+  tab-complete: 0
+  send-namespaced: false
+players:
+  disable-saving: true
+world-settings:
+  default:
+    below-zero-generation-in-existing-chunks: true
+    verbose: false
+    merge-radius:
+      exp: 3.0
+      item: 2.5
+    growth:
+      cactus-modifier: 100
+      cane-modifier: 100
+      melon-modifier: 100
+      mushroom-modifier: 100
+      pumpkin-modifier: 100
+      sapling-modifier: 100
+      beetroot-modifier: 100
+      carrot-modifier: 100
+      potato-modifier: 100
+      wheat-modifier: 100
+      netherwart-modifier: 100
+      vine-modifier: 100
+      cocoa-modifier: 100
+      bamboo-modifier: 100
+      sweetberry-modifier: 100
+      kelp-modifier: 100
+      twistingvines-modifier: 100
+      weepingvines-modifier: 100
+      cavevines-modifier: 100
+      glowberry-modifier: 100
+    entity-activation-range:
+      animals: 32
+      monsters: 32
+      raiders: 48
+      misc: 16
+      water: 16
+      villagers: 32
+      flying-monsters: 32
+      wake-up-inactive:
+        animals-max-per-tick: 4
+        animals-every: 1200
+        animals-for: 100
+        monsters-max-per-tick: 8
+        monsters-every: 400
+        monsters-for: 100
+        villagers-max-per-tick: 4
+        villagers-every: 600
+        villagers-for: 100
+        flying-monsters-max-per-tick: 8
+        flying-monsters-every: 200
+        flying-monsters-for: 100
+      villagers-work-immunity-after: 100
+      villagers-work-immunity-for: 20
+      villagers-active-for-panic: true
+      tick-inactive-villagers: true
+      ignore-spectators: false
+    entity-tracking-range:
+      players: 48
+      animals: 48
+      monsters: 48
+      misc: 32
+      other: 64
+    ticks-per:
+      hopper-transfer: 8
+      hopper-check: 1
+    hopper-amount: 1
+    dragon-death-sound-radius: 0
+    seed-village: 10387312
+    seed-desert: 14357617
+    seed-igloo: 14357618
+    seed-jungle: 14357619
+    seed-swamp: 14357620
+    seed-monument: 10387313
+    seed-shipwreck: 165745295
+    seed-ocean: 14357621
+    seed-outpost: 165745296
+    seed-endcity: 10387313
+    seed-slime: 987234911
+    seed-bastion: 30084232
+    seed-fortress: 30084232
+    seed-mansion: 10387319
+    seed-fossil: 14357921
+    seed-portal: 34222645
+    seed-stronghold: default
+    hunger:
+      jump-walk-exhaustion: 0.05
+      jump-sprint-exhaustion: 0.2
+      combat-exhaustion: 0.1
+      regen-exhaustion: 6.0
+      swim-multiplier: 0.01
+      sprint-multiplier: 0.1
+      other-multiplier: 0.0
+    max-tnt-per-tick: 100
+    max-tick-time:
+      tile: 50
+      entity: 50
+    enable-zombie-pigmen-portal-spawns: true
+    item-despawn-rate: 6000
+    view-distance: default
+    simulation-distance: default
+    thunder-chance: 100000
+    wither-spawn-sound-radius: 0
+    arrow-despawn-rate: 1200
+    trident-despawn-rate: 1200
+    hanging-tick-frequency: 100
+    zombie-aggressive-towards-villager: true
+    nerf-spawner-mobs: false
+    mob-spawn-range: 8
+    end-portal-sound-radius: 0
+config-version: 12
+stats:
+  disable-saving: true
+  forced-stats: {}

core/pom.xml

@@ -179,7 +179,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.9</version>
+            <version>2.9.0</version>
         </dependency>
     </dependencies>
 </project>