Lwjgl-3.3.0 GLFW cannot create a GL window on armhf

I have tested jme3-lwjgl3 dependency with :

1. Lwjgl-3.3.0 GLFW and natives, the GLFW cannot create the GL window :

pi@raspberrypi:~/NativeJmeTemplate/output/run $ ./run.sh 
Run
..................................
Dec 09, 2021 12:44:14 PM com.jme3.system.JmeDesktopSystem initialize
INFO: Running on jMonkeyEngine 3.5.0-alpha1
 * Branch: HEAD
 * Git Hash: dc91668
 * Build Date: 2021-11-14
Dec 09, 2021 12:44:16 PM com.jme3.system.lwjgl.LwjglContext printContextInitInfo
INFO: LWJGL 3.3.0 build 21 context running on thread jME3 Main
 * Graphics Adapter: GLFW 3.4.0 Wayland X11 GLX Null EGL OSMesa monotonic shared
Dec 09, 2021 12:44:16 PM com.jme3.renderer.opengl.GLRenderer loadCapabilitiesCommon
INFO: OpenGL Renderer Information
 * Vendor: Broadcom
 * Renderer: V3D 4.2
 * OpenGL Version: 2.1 Mesa 19.3.2
 * GLSL Version: 1.20
 * Profile: Compatibility
Dec 09, 2021 12:44:16 PM com.jme3.asset.AssetConfig loadText
WARNING: Cannot find loader com.jme3.scene.plugins.ogre.MeshLoader
Dec 09, 2021 12:44:16 PM com.jme3.asset.AssetConfig loadText
WARNING: Cannot find loader com.jme3.scene.plugins.ogre.SkeletonLoader
Dec 09, 2021 12:44:16 PM com.jme3.asset.AssetConfig loadText
WARNING: Cannot find loader com.jme3.scene.plugins.ogre.MaterialLoader
Dec 09, 2021 12:44:16 PM com.jme3.asset.AssetConfig loadText
WARNING: Cannot find loader com.jme3.scene.plugins.ogre.SceneLoader
Dec 09, 2021 12:44:16 PM com.jme3.asset.AssetConfig loadText
WARNING: Cannot find loader com.jme3.scene.plugins.fbx.FbxLoader
Dec 09, 2021 12:44:16 PM com.jme3.asset.AssetConfig loadText
WARNING: Cannot find loader com.jme3.scene.plugins.gltf.GltfLoader
Dec 09, 2021 12:44:16 PM com.jme3.asset.AssetConfig loadText
WARNING: Cannot find loader com.jme3.scene.plugins.gltf.BinLoader
Dec 09, 2021 12:44:16 PM com.jme3.asset.AssetConfig loadText
WARNING: Cannot find loader com.jme3.scene.plugins.gltf.GlbLoader
Dec 09, 2021 12:44:16 PM com.jme3.asset.AssetConfig loadText
WARNING: Cannot find loader com.jme3.audio.plugins.OGGLoader
Dec 09, 2021 12:44:16 PM com.jme3.app.LegacyApplication handleError
SEVERE: Uncaught exception thrown in Thread[jME3 Main,5,main]
java.lang.NullPointerException
	at org.lwjgl.system.Callback.get(Callback.java:190)
	at org.lwjgl.glfw.GLFWWindowSizeCallback.create(GLFWWindowSizeCallback.java:36)
	at org.lwjgl.glfw.GLFWWindowSizeCallback.createSafe(GLFWWindowSizeCallback.java:45)
	at org.lwjgl.glfw.GLFW.glfwSetWindowSizeCallback(GLFW.java:3139)
	at com.jme3.input.lwjgl.GlfwMouseInput.initCallbacks(GlfwMouseInput.java:243)
	at com.jme3.input.lwjgl.GlfwMouseInput.initialize(GlfwMouseInput.java:184)
	at com.jme3.app.LegacyApplication.initInput(LegacyApplication.java:337)
	at com.jme3.app.LegacyApplication.initialize(LegacyApplication.java:640)
	at com.jme3.app.SimpleApplication.initialize(SimpleApplication.java:198)
	at com.jme3.system.lwjgl.LwjglWindow.initInThread(LwjglWindow.java:524)
	at com.jme3.system.lwjgl.LwjglWindow.run(LwjglWindow.java:640)
	at com.jme3.system.lwjgl.LwjglWindow.create(LwjglWindow.java:477)
	at com.jme3.app.LegacyApplication.start(LegacyApplication.java:491)
	at com.jme3.app.LegacyApplication.start(LegacyApplication.java:443)
	at com.jme3.app.SimpleApplication.start(SimpleApplication.java:126)
	at test.TestJni.main(TestJni.java:18)

Dec 09, 2021 12:44:16 PM com.jme3.app.LegacyApplication handleError
SEVERE: Failed to destroy context
java.lang.NullPointerException
	at org.lwjgl.system.Callback.get(Callback.java:190)
	at org.lwjgl.glfw.GLFWErrorCallback.create(GLFWErrorCallback.java:40)
	at org.lwjgl.glfw.GLFWErrorCallback.createSafe(GLFWErrorCallback.java:49)
	at org.lwjgl.glfw.GLFW.glfwSetErrorCallback(GLFW.java:1288)
	at com.jme3.system.lwjgl.LwjglWindow.destroyContext(LwjglWindow.java:436)
	at com.jme3.system.lwjgl.LwjglWindow.deinitInThread(LwjglWindow.java:624)
	at com.jme3.system.lwjgl.LwjglWindow.lambda$initInThread$12(LwjglWindow.java:494)
	at java.base/java.lang.Thread.dispatchUncaughtException(Thread.java:2002)

X Error of failed request:  BadWindow (invalid Window parameter)
  Major opcode of failed request:  20 (X_GetProperty)
  Resource id in failed request:  0x1a00061
  Serial number of failed request:  1818
  Current serial number in output stream:  1818

Seems that GLFW cannot find the graphics adapter :

INFO: LWJGL 3.3.0 build 21 context running on thread jME3 Main

• Graphics Adapter: GLFW 3.4.0 Wayland X11 GLX Null EGL OSMesa monotonic shared

I believe that this is a lwjgl issue, but we are expecting its from jme until proved otherwise.

1. Lwjgl-3.2.3 GLFW and natives, the app works fine with a non null graphics adapter :

Sorry i am not on the pi now to copy this stack trace, but this is the important finding.

forum thread : https://hub.jmonkeyengine.org/t/jme3-5-0-alpha-on-armhf/45207/2?u=pavl_g

[stephengold]

The root cause of the GLXBadFBConfig crash was that the RPi doesn’t support OpenGL 3.2 . Back in January, PR #1752 made 3.2 the default.

The workaround was to set the renderer to “LWJGL-OpenGL2” in main(). With that workaround, I was able to run TestJaime, both with LWJGL 3.2.3 and LWJGL 3.3.1 . I was also able to reproduce the original NPE (in Callback.java line 190) using LWJGL 3.3.0 .

Closing this issue.

[Ali-RS]

I added a commit on my fork that may fix your issue: https://github.com/Ali-RS/jmonkeyengine/commit/5dc3e27d388da9290e967185874920386e6465e0

can you give it a try, please?