I get the following assertion failure very infrequently when switching between the integrated graphics card and the discrete graphics card on a 16" MacBook Pro:

export METAL_DEVICE_WRAPPER_TYPE=1
export MTL_SHADER_VALIDATION=1
export J2D_TRACE_LEVEL=5

export JAVA_HOME=/Users/kcr/dev/java/lanai-clean/build/macosx-x64/images/jdk
export PATH=$JAVA_HOME/bin:$PATH
java -version
java version "17-internal" 2021-09-14 LTS
Java(TM) SE Runtime Environment (build 17-internal+0-LTS-2021-03-09-1228537.kcr...)
Java HotSpot(TM) 64-Bit Server VM (build 17-internal+0-LTS-2021-03-09-1228537.kcr..., mixed mode, sharing)
_JAVA_OPTIONS="-Dsun.java2d.metal=True" "/Applications/NetBeans/Apache NetBeans 12.0.app/Contents/Resources/NetBeans/netbeans/bin/netbeans" --jdkhome $JAVA_HOME
Picked up _JAVA_OPTIONS: -Dsun.java2d.metal=True
2021-03-09 05:09:57.189 java[13130:816467] Metal API Validation Enabled
2021-03-09 05:09:57.395 system_profiler[13132:816541] Metal API Validation Enabled
[I] MTLGraphicsConfig_isMetalFrameworkAvailable : 1
[I] MTLGraphicsConfigUtil_tryLoadMTLLibrary
[I] MTLGraphicsConfig_getMTLConfigInfo
Metal pipeline enabled on screen 2077748985
[I] MTLGraphicsConfigUtil_tryLoadMTLLibrary
[I] MTLGraphicsConfig_getMTLConfigInfo
Metal pipeline enabled on screen 69734662
[I] MTLGraphicsConfigUtil_tryLoadMTLLibrary
[I] MTLGraphicsConfig_getMTLConfigInfo
Metal pipeline enabled on screen 724848347
[I] MTLGraphicsConfigUtil_tryLoadMTLLibrary
[I] MTLGraphicsConfig_getMTLConfigInfo
Metal pipeline enabled on screen 2077748985
[I] MTLGraphicsConfigUtil_tryLoadMTLLibrary
[I] MTLGraphicsConfig_getMTLConfigInfo
Metal pipeline enabled on screen 69734662
[I] MTLGraphicsConfigUtil_tryLoadMTLLibrary
[I] MTLGraphicsConfig_getMTLConfigInfo
Metal pipeline enabled on screen 2077748985
[I] MTLGraphicsConfigUtil_tryLoadMTLLibrary
[I] MTLGraphicsConfig_getMTLConfigInfo
Metal pipeline enabled on screen 69734662
[I] MTLGraphicsConfigUtil_tryLoadMTLLibrary
[I] MTLGraphicsConfig_getMTLConfigInfo
Metal pipeline enabled on screen 2077748985
[I] MTLGraphicsConfigUtil_tryLoadMTLLibrary
[I] MTLGraphicsConfig_getMTLConfigInfo
Metal pipeline enabled on screen 69734662
[E] MTLSD_InitMTLWindow: view is invalid
[E] MTLContext_SetSurfaces: could not init MTL window
[I] MTLGraphicsConfigUtil_tryLoadMTLLibrary
[I] MTLGraphicsConfig_getMTLConfigInfo
Metal pipeline enabled on screen 2077748985
[I] MTLGraphicsConfigUtil_tryLoadMTLLibrary
[I] MTLGraphicsConfig_getMTLConfigInfo
Metal pipeline enabled on screen 69734662
[E] MTLSD_InitMTLWindow: view is invalid
[E] MTLContext_SetSurfaces: could not init MTL window
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLSD_InitMTLWindow: view is invalid
[E] MTLContext_SetSurfaces: could not init MTL window
[E] MTLSD_InitMTLWindow: view is invalid
[E] MTLContext_SetSurfaces: could not init MTL window
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillParallelogram: current dest is null
[E] MTLRenderer_FillSpans: dest is null
[E] MTLSD_InitMTLWindow: view is invalid
[E] MTLContext_SetSurfaces: could not init MTL window
[E] MTLSD_InitMTLWindow: view is invalid
[E] MTLContext_SetSurfaces: could not init MTL window
[E] MTLRenderer_FillSpans: dest is null
[E] MTLSD_InitMTLWindow: view is invalid
[E] MTLContext_SetSurfaces: could not init MTL window
[E] MTLRenderer_FillParallelogram: current dest is null
-[MTLDebugRenderCommandEncoder setFragmentTexture:atIndex:]:1774: failed assertion `texture is associated with a different device'
13130 Abort trap: 6

This is with a local build of the latest lanai repo as of right now, including the most recent fix for JDK-8262882 (I note that it happens with earlier builds as well, so is not a regression).