Box2D not working on 1.10.1-SNAPSHOT with Linux

Issue details

The latest gdx snapshot (1.10.1-SNAPSHOT) is not working with Box2D on my Amazon Linux 2 EC2 instance.

Unknown if this is isolated to just Amazon distros or not.

Context: https://discord.com/channels/348229412858101762/873537733430226964/936111896023695411

Reproduction steps/code

1. Create an Amazon Linux 2 EC2 instance
2. Dist a libGDX jar using 1.10.1-SNAPSHOT that creates a Box2D world.
3. Run the jar on the EC2 instance: java -jar mygame.jar
4. See error stack trace when creating Box2D world: Caused by: com.badlogic.gdx.utils.SharedLibraryLoadRuntimeException: Couldn't load shared library 'libgdx-box2d64.so' for target: Linux, 64-bit

Version of libGDX and/or relevant dependencies

• libGDX version: 1.10.1-SNAPSHOT
• gradlew server:dependencies output:

|    +--- project :core
|    |    +--- com.badlogicgames.gdx:gdx:1.10.1-SNAPSHOT
|    |    |    \--- com.badlogicgames.gdx:gdx-jnigen-loader:2.2.0
|    |    +--- com.badlogicgames.gdx:gdx-box2d:1.10.1-SNAPSHOT
|    |    |    \--- com.badlogicgames.gdx:gdx:1.10.1-SNAPSHOT (*)
|    |    +--- com.github.tommyettinger.gdx-utils:libgdx-utils:0.13.7
|    |    |    \--- com.badlogicgames.gdx:gdx:1.9.12 -> 1.10.1-SNAPSHOT (*)
|    |    +--- com.github.tommyettinger.gdx-utils:libgdx-utils-box2d:0.13.7
|    |    |    +--- com.github.tommyettinger.gdx-utils:libgdx-utils:0.13.7 (*)
|    |    |    \--- com.badlogicgames.gdx:gdx-box2d:1.9.12 -> 1.10.1-SNAPSHOT (*)
|    |    +--- com.github.czyzby:gdx-websocket:1.9.1.9.6
|    |    +--- com.github.czyzby:gdx-websocket-serialization:1.9.1.9.6
|    |    |    \--- com.github.czyzby:gdx-websocket:1.9.1.9.6
|    |    +--- de.golfgl.gdxgameanalytics:gdx-gameanalytics-core:1.0.0
|    |    |    \--- com.badlogicgames.gdx:gdx:1.9.5 -> 1.10.1-SNAPSHOT (*)
|    |    +--- com.github.tommyettinger:jagd:191bdd1ceb
|    |    |    \--- com.badlogicgames.gdx:gdx:1.9.10 -> 1.10.1-SNAPSHOT (*)
|    |    +--- space.earlygrey:shapedrawer:8e2a97479fb9ba7f07b842afa5512240e8bc3d41
|    |    |    \--- com.badlogicgames.gdx:gdx:1.9.10 -> 1.10.1-SNAPSHOT (*)
|    |    +--- com.kotcrab.vis:vis-ui:1.4.2
|    |    |    \--- com.badlogicgames.gdx:gdx:1.9.9 -> 1.10.1-SNAPSHOT (*)
|    |    +--- com.github.payne911:PieMenu:5.0.0
|    |    |    +--- com.badlogicgames.gdx:gdx:1.9.10 -> 1.10.1-SNAPSHOT (*)
|    |    |    \--- space.earlygrey:shapedrawer:2.3.0 -> 8e2a97479fb9ba7f07b842afa5512240e8bc3d41 (*)
|    |    +--- com.github.tommyettinger:formic:0.1.4
|    |    |    +--- com.google.jsinterop:base:1.0.0-RC1
|    |    |    |    \--- com.google.jsinterop:jsinterop-annotations:1.0.2
|    |    |    +--- com.google.elemental2:elemental2-core:1.0.0-RC1
|    |    |    |    +--- com.google.jsinterop:jsinterop-annotations:1.0.2
|    |    |    |    \--- com.google.jsinterop:base:1.0.0-RC1 (*)
|    |    |    \--- com.google.elemental2:elemental2-dom:1.0.0-RC1
|    |    |         +--- com.google.jsinterop:jsinterop-annotations:1.0.2
|    |    |         +--- com.google.jsinterop:base:1.0.0-RC1 (*)
|    |    |         +--- com.google.elemental2:elemental2-core:1.0.0-RC1 (*)
|    |    |         \--- com.google.elemental2:elemental2-promise:1.0.0-RC1
|    |    |              +--- com.google.jsinterop:jsinterop-annotations:1.0.2
|    |    |              \--- com.google.jsinterop:base:1.0.0-RC1 (*)
|    |    +--- org.slf4j:slf4j-simple:1.7.9
|    |    |    \--- org.slf4j:slf4j-api:1.7.9 -> 1.7.25
|    |    \--- com.google.gwt:gwt-user:2.8.0
|    |         +--- com.google.jsinterop:jsinterop-annotations:1.0.1 -> 1.0.2
|    |         +--- javax.validation:validation-api:1.0.0.GA
|    |         +--- javax.servlet:javax.servlet-api:3.1.0
|    |         \--- org.w3c.css:sac:1.3
|    +--- com.badlogicgames.gdx:gdx-backend-lwjgl:1.10.1-SNAPSHOT
|    |    +--- com.badlogicgames.gdx:gdx:1.10.1-SNAPSHOT (*)
|    |    +--- org.lwjgl.lwjgl:lwjgl:2.9.3
|    |    |    +--- org.lwjgl.lwjgl:lwjgl-platform:2.9.3
|    |    |    \--- net.java.jinput:jinput:2.0.5
|    |    |         +--- net.java.jutils:jutils:1.0.0
|    |    |         \--- net.java.jinput:jinput-platform:2.0.5
|    |    +--- com.badlogicgames.jlayer:jlayer:1.0.1-gdx
|    |    \--- org.jcraft:jorbis:0.0.17
|    +--- com.badlogicgames.gdx:gdx-platform:1.10.1-SNAPSHOT
|    +--- com.badlogicgames.gdx:gdx-box2d-platform:1.10.1-SNAPSHOT
|    +--- com.badlogicgames.gdx:gdx-backend-headless:1.10.1-SNAPSHOT
|    |    \--- com.badlogicgames.gdx:gdx:1.10.1-SNAPSHOT (*)
|    +--- com.badlogicgames.gdx:gdx-tools:1.10.1-SNAPSHOT
|    |    +--- com.badlogicgames.gdx:gdx-backend-lwjgl:1.10.1-SNAPSHOT (*)
|    |    +--- com.badlogicgames.gdx:gdx-freetype:1.10.1-SNAPSHOT
|    |    |    \--- com.badlogicgames.gdx:gdx:1.10.1-SNAPSHOT (*)
|    |    \--- com.badlogicgames.gdx:gdx-backend-headless:1.10.1-SNAPSHOT (*)
|    +--- org.mockito:mockito-all:1.9.5
|    \--- com.github.Anuken:GdxGifRecorder:1.3
|         \--- com.badlogicgames.gdx:gdx:1.9.5 -> 1.10.1-SNAPSHOT (*)
+--- project :core (*)
+--- org.java-websocket:Java-WebSocket:1.4.0
|    \--- org.slf4j:slf4j-api:1.7.25
+--- org.luaj:luaj-jse:3.0.1
+--- org.spongepowered:noise:2.0.0-SNAPSHOT
\--- com.sudoplay.joise:joise:1.1.0

Stacktrace

ec2 Amazon Linux 2 instance stack trace (when calling new World()):

ec2.internal bash[25188]: Exception in thread "HeadlessApplication" com.badlogic.gdx.utils.GdxRuntimeException: java.lang.ExceptionInInitializerError
ec2.internal bash[25188]: at com.badlogic.gdx.backends.headless.HeadlessApplication$1.run(HeadlessApplication.java:98)
ec2.internal bash[25188]: Caused by: java.lang.ExceptionInInitializerError
ec2.internal bash[25188]: at io.lurkers.game.Level.create(Level.java:82)
ec2.internal bash[25188]: at io.lurkers.game.Game.loadLevel(Game.java:128)
ec2.internal bash[25188]: at io.lurkers.server.ListenerServer.event(ListenerServer.java:46)
ec2.internal bash[25188]: at io.lurkers.game.messagequeue.MessageQueue.notifyListeners(MessageQueue.java:144)
ec2.internal bash[25188]: at io.lurkers.game.messagequeue.MessageQueue.process(MessageQueue.java:55)
ec2.internal bash[25188]: at io.lurkers.game.messagequeue.MessageQueue.process(MessageQueue.java:38)
ec2.internal bash[25188]: at io.lurkers.game.Game.create(Game.java:82)
ec2.internal bash[25188]: at io.lurkers.server.GameServerHeadless.create(GameServerHeadless.java:169)
ec2.internal bash[25188]: at com.badlogic.gdx.backends.headless.HeadlessApplication.mainLoop(HeadlessApplication.java:108)
ec2.internal bash[25188]: at com.badlogic.gdx.backends.headless.HeadlessApplication$1.run(HeadlessApplication.java:93)
ec2.internal bash[25188]: Caused by: com.badlogic.gdx.utils.SharedLibraryLoadRuntimeException: Couldn't load shared library 'libgdx-box2d64.so' for target: Linux, 64-bit
ec2.internal bash[25188]: at com.badlogic.gdx.utils.SharedLibraryLoader.load(SharedLibraryLoader.java:128)
ec2.internal bash[25188]: at com.badlogic.gdx.physics.box2d.World.<clinit>(World.java:188)
ec2.internal bash[25188]: ... 10 more
ec2.internal bash[25188]: Caused by: com.badlogic.gdx.utils.SharedLibraryLoadRuntimeException: java.lang.UnsatisfiedLinkError: /tmp/libgdxec2-user/443f008d/libgdx-box2d64.so: /lib64/libm.so.6: version `GLIBC_2.27' not found (required by /tmp/libgdxec2-user/443f008d/libgdx-box2d64.so)
ec2.internal bash[25188]: at com.badlogic.gdx.utils.SharedLibraryLoader.loadFile(SharedLibraryLoader.java:324)
ec2.internal bash[25188]: at com.badlogic.gdx.utils.SharedLibraryLoader.load(SharedLibraryLoader.java:124)
ec2.internal bash[25188]: ... 11 more
ec2.internal bash[25188]: Caused by: java.lang.UnsatisfiedLinkError: /tmp/libgdxec2-user/443f008d/libgdx-box2d64.so: /lib64/libm.so.6: version `GLIBC_2.27' not found (required by /tmp/libgdxec2-user/443f008d/libgdx-box2d64.so)
ec2.internal bash[25188]: at java.lang.ClassLoader$NativeLibrary.load(Native Method)
ec2.internal bash[25188]: at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1934)
ec2.internal bash[25188]: at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1817)
ec2.internal bash[25188]: at java.lang.Runtime.load0(Runtime.java:810)
ec2.internal bash[25188]: at java.lang.System.load(System.java:1088)
ec2.internal bash[25188]: at com.badlogic.gdx.utils.SharedLibraryLoader.loadFile(SharedLibraryLoader.java:330)
ec2.internal bash[25188]: at com.badlogic.gdx.utils.SharedLibraryLoader.loadFile(SharedLibraryLoader.java:299)
ec2.internal bash[25188]: ... 12 more

Please select the affected platforms

• Android
• iOS
• HTML/GWT
• Windows
• Linux
• macOS

[fgnm]

I had a similar problem with another Linux distro, and yes the problem was the GLIBC version… Since libGDX is now built with Ubuntu 18.04 you need at least glibc 2.27 and probably in your AWS instance is installed an older version… Looking at Amazon Linux 2 release notes looks like they’re stuck at glibc 2.26 https://aws.amazon.com/amazon-linux-2/release-notes/

[MobiDevelop]

That’s a bummer.