R8 8.7.18 causes a runtime null pointer exception when calling job?.cancel [387258081]

Fixed

Bug

Status Update

No update yet.

Description

Er...@gtempaccount.com

created issue #1

Jan 3, 2025 02:51PM

I updated AGP to 8.7.3 (uses R8 8.7.18) and observed one screen began to crash with NullPointerException when it called Coroutine job?.cancel method.

I downgraded back to AGP 8.6.1 (uses R8 8.6.27) which no longer crashes.

I have made a sample project that replicates the code and crash.

Steps to reproduce

Download the sample
Select the build variant alpha. This creates an obfuscated build.
Run the application. I think this happens on any Android version I tried on Android 10 and 14 which both crash.
Click the button Launch countdown Activity
Press back on device or use back gesture
Observe the crash
Also observe the countdown does not work
Switch the build variant to debug. This is not obfuscated . Try the above steps and observe it works.

If you downgrade the versions and build alpha it does not crash.

Note my real project and sample project both have android.enableR8.fullMode=false in gradle.properties.

R8CoroutineBug.zip

1.5 MB

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Comments

sg...@google.com <sg...@google.com> #2Jan 3, 2025 03:52PM

Reassigned to sg...@google.com.

What theme are you using in the layout editor for rendering? Is it a Material theme? If not, does it work when using a Material theme?

Er...@gtempaccount.com <Er...@gtempaccount.com> #3Jan 3, 2025 04:34PM

Yes, it's a Material theme. It's parent is Theme.Material3.Dark.NoActionBar

Message last modified on Jan 3, 2025 04:37PM

ap...@google.com <ap...@google.com> #4Jan 8, 2025 03:05PM

same here, but some different classes - likely same issue though...

theme used: Theme.Material3.DayNight.NoActionBar

Flamingo | 2022.2.1 Canary 9 but was already happening in Canary 8

Android Studio Flamingo | 2022.2.1 Canary 9 Build #AI-222.4345.14.2221.9321504, built on November 22, 2022 Runtime version: 17.0.4.1+0-b2043.56-9127311 amd64 VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o. Windows 11 10.0 GC: G1 Young Generation, G1 Old Generation Memory: 8192M Cores: 20 Registry: external.system.auto.import.disabled=true ide.text.editor.with.preview.show.floating.toolbar=false gradle.version.catalogs.dynamic.support=true

Non-Bundled Plugins: name.kropp.intellij.makefile (222.4345.14) nl.rubensten.texifyidea (0.7.23) artsiomch.cmake (223.2.1) CMD Support (1.0.5)

The following classes could not be instantiated: - com.google.android.material.textfield.TextInputLayout (Open Class, Show Exception, Clear Cache) - com.google.android.material.appbar.AppBarLayout (Open Class, Show Exception, Clear Cache) Tip: Use View.isInEditMode() in your custom views to skip code or show sample data when shown in the IDE. If this is an unexpected error you can also try to build the project, then manually refresh the layout.

Exception Details java.lang.IllegalArgumentException: Motion easing theme attribute must be an @interpolator resource for ?attr/motionEasingInterpolator attributes or a string for ?attr/motionEasing attributes. at com.google.android.material.motion.MotionUtils.resolveThemeInterpolator(MotionUtils.java:74) at com.google.android.material.textfield.IndicatorViewController.<init>(IndicatorViewController.java:148) at com.google.android.material.textfield.TextInputLayout.<init>(TextInputLayout.java:225) at com.google.android.material.textfield.TextInputLayout.<init>(TextInputLayout.java:451) at jdk.internal.reflect.GeneratedConstructorAccessor1418.newInstance at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) at java.lang.reflect.Constructor.newInstance(Constructor.java:480) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:965) at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:1127) at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72) at android.view.LayoutInflater.rInflate(LayoutInflater.java:1101) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1088) at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:1130) at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72) at android.view.LayoutInflater.rInflate(LayoutInflater.java:1101) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1088) at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:1130) at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72) at android.view.LayoutInflater.rInflate(LayoutInflater.java:1101) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1088) at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:1130) at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72) at android.view.LayoutInflater.rInflate(LayoutInflater.java:1101) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1088) at android.view.LayoutInflater.inflate(LayoutInflater.java:686) at android.view.LayoutInflater.inflate(LayoutInflater.java:505)

ap...@google.com <ap...@google.com> #5Jan 8, 2025 04:07PM

Marked as fixed.

https://issuetracker.google.com/issues/258646238

ap...@google.com <ap...@google.com> #6Jan 13, 2025 08:55AM

Same issue here, had no issues till I updated from Material 1.7.0 to 1.8.0-rc01 . Can't instantiate MaterialCardView in preview layout (project still can be compiled and built despite this).

Android Studio version:
Android Studio Electric Eel | 2022.1.1
Build #AI-221.6008.13.2211.9477386, built on January 11, 2023
Runtime version: 11.0.15+0-b2043.56-8887301 x86_64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
macOS 12.6.2
GC: G1 Young Generation, G1 Old Generation
Memory: 2048M
Cores: 16
Registry:
external.system.auto.import.disabled=true
ide.text.editor.with.preview.show.floating.toolbar=false

Non-Bundled Plugins:
com.google.mad-scorecard (1.2)

ap...@google.com <ap...@google.com> #7Jan 13, 2025 08:55AM

This has been fixed in Android Studio Flamingo

ap...@google.com <ap...@google.com> #8Jan 13, 2025 08:55AM

I don't know

ap...@google.com <ap...@google.com> #9Jan 13, 2025 10:07AM

Still does not work in Flamingo Beta 5

ap...@google.com <ap...@google.com> #10Jan 13, 2025 10:07AM

first in tab layout it showing no speakable text present after solving that i was using tabitem then its start showing render problem

java.lang.NullPointerException
at android.content.res.Resources_Theme_Delegate.obtainStyledAttributes(Resources_Theme_Delegate.java:74)
at android.content.res.Resources$Theme.obtainStyledAttributes(Resources.java:1631)
at android.content.Context.obtainStyledAttributes(Context.java:874)
at android.widget.TextView.setTextAppearance(TextView.java:3965)
at androidx.appcompat.widget.AppCompatTextView.setTextAppearance(AppCompatTextView.java:216)
at com.google.android.material.textview.MaterialTextView.setTextAppearance(MaterialTextView.java:106)
at android.widget.TextView.setTextAppearance(TextView.java:3954)
at androidx.core.widget.TextViewCompat.setTextAppearance(TextViewCompat.java:289)
at com.google.android.material.tabs.TabLayout$TabView.updateTab(TabLayout.java:2772)
at com.google.android.material.tabs.TabLayout$TabView.update(TabLayout.java:2801)
at com.google.android.material.tabs.TabLayout$TabView.setTab(TabLayout.java:2713)
at com.google.android.material.tabs.TabLayout.createTabView(TabLayout.java:1673)
at com.google.android.material.tabs.TabLayout.newTab(TabLayout.java:956)
at com.google.android.material.tabs.TabLayout.addTabFromItemView(TabLayout.java:824)
at com.google.android.material.tabs.TabLayout.addViewInternal(TabLayout.java:1730)
at com.google.android.material.tabs.TabLayout.addView(TabLayout.java:1720)
at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:1131)
at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1101)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1088)
at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:1130)
at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1101)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1088)
at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:1130)
at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1101)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1088)
at android.view.LayoutInflater.inflate(LayoutInflater.java:686)
at android.view.LayoutInflater.inflate(LayoutInflater.java:505)
at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:360)
at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:443)
at com.android.tools.idea.layoutlib.LayoutLibrary.createSession(LayoutLibrary.java:121)
at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:722)
at com.android.tools.idea.rendering.RenderTask.lambda$inflate$9(RenderTask.java:879)
at com.android.tools.idea.rendering.RenderExecutor$runAsyncActionWithTimeout$3.run(RenderExecutor.kt:194)
at com.android.tools.idea.rendering.RenderExecutor$PriorityRunnable.run(RenderExecutor.kt:292)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:829)

ap...@google.com <ap...@google.com> #11Jan 13, 2025 10:07AM

Hi,
I'm using the following version with material design 1.9.0 and this is still persistent with the Tab-Layout

Android Studio Flamingo | 2022.2.1 Patch 2
Build #AI-222.4459.24.2221.10121639, built on May 12, 2023
Runtime version: 17.0.6+0-b2043.56-9586694 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Windows 11 10.0
GC: G1 Young Generation, G1 Old Generation
Memory: 3072M
Cores: 4
Registry:
editor.focus.mode.color.light=464b5d
ide.editor.tab.selection.animation=true
external.system.auto.import.disabled=true
ide.text.editor.with.preview.show.floating.toolbar=false
ide.windowSystem.autoShowProcessPopup=true
ide.instant.shutdown=false
ide.new.editor.tabs.vertical.borders=true
ide.balloon.shadow.size=0
editor.focus.mode.color.dark=464b5d
gradle.version.catalogs.dynamic.support=true

sg...@google.com <sg...@google.com> #12Jan 13, 2025 10:29AM

There was another issue with TabLayout that has only been fixed in Android Studio Giraffe (see https://b.corp.google.com/issues/268488795).
Please file a new issue if this still does not work for you in Giraffe or newer versions of Studio

an...@google.com <an...@google.com> #13Feb 13, 2025 06:23PM

This is now happening for every single xml preview, including drawables, on Giraffe Patch 2.

Happened out of nowhere, sudden massive CPU use non stop, computer started lagging everywhere, forced kill the app after 10min of this nonsense, restarted and no previews for any layouts show up, no matter which .xml file used, new, old, modified, nothing works for the preview now and no warnings show up either. Already tried clearing cache, restarting pc, cleared build files in the project folder, NOTHING WORKS. This is absolutely bonkers, the ability to preview any XML is completely dead and there is no explanation, warning, or error to explain why it is now stuck like this. Unbelievable.