Build: AI-221.6008.13.2211.9301383, 202211162311, 

AI-221.6008.13.2211.9301383, JRE 11.0.15+0-b2043.56-8887301x64 JetBrains s.r.o., OS Windows 11(amd64) v10.0 , screens 1920.0x1080.0, 2560.0x1440.0, 2560.0x1440.0

AS: Electric Eel | 2022.1.1 RC 1
Kotlin plugin: 221-1.7.21-release-for-android-studio-AS5591.52
Android Gradle Plugin: 7.3.1
Gradle: 7.6
Gradle JDK: version 11.0.15
NDK: from local.properties: (not specified), latest from SDK: (not found)
CMake: from local.properties: (not specified), latest from SDK: (not found), from PATH: (not found)
Source: send_feedback_icon

IMPORTANT: Please read https://developer.android.com/studio/report-bugs.html carefully and supply all required information.

I'm trying to use a text with an HTML <b>-Tag for a compose Text(). The HTML-text is converted to a Spannable via HtmlCompat.fromHtml() and then to an AnnotatedString which applies a bold SpanStyle. See the example project: https://github.com/hardysim/htmlbtest.

This works fine in the actual app as well as in the compose preview in "Android Studio Dolphin | 2021.3.1 Patch 1" using AGP 7.3.1. But it stops working when using "Android Studio Electric Eel | 2022.1.1 RC 1". I get the following error for the preview:

java.lang.NullPointerException
	at android.text.HtmlToSpannedConverter.handleEndTag(Html.java:869)
	at android.text.HtmlToSpannedConverter.endElement(Html.java:1247)
	at org.ccil.cowan.tagsoup.Parser.pop(Parser.java:737)
	at org.ccil.cowan.tagsoup.Parser.etag_basic(Parser.java:707)
	at org.ccil.cowan.tagsoup.Parser.etag(Parser.java:645)
	at org.ccil.cowan.tagsoup.HTMLScanner.scan(HTMLScanner.java:552)
	at org.ccil.cowan.tagsoup.Parser.parse(Parser.java:450)
	at android.text.HtmlToSpannedConverter.convert(Html.java:751)
	at android.text.Html.fromHtml(Html.java:246)
	at android.text.Html.fromHtml(Html.java:200)
	at androidx.core.text.HtmlCompat.fromHtml(HtmlCompat.java:148)
	at com.example.html_b_test.MainActivityKt.toSpanned(MainActivity.kt:48)
	at com.example.html_b_test.MainActivityKt.toSpanned$default(MainActivity.kt:48)
	at com.example.html_b_test.ComposableSingletons$MainActivityKt$lambda-2$1.invoke(MainActivity.kt:39)
	at com.example.html_b_test.ComposableSingletons$MainActivityKt$lambda-2$1.invoke(MainActivity.kt:38)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
	at androidx.compose.material.MaterialTheme_androidKt.PlatformMaterialTheme(MaterialTheme.android.kt:23)
	at androidx.compose.material.MaterialThemeKt$MaterialTheme$1$1.invoke(MaterialTheme.kt:82)
	at androidx.compose.material.MaterialThemeKt$MaterialTheme$1$1.invoke(MaterialTheme.kt:81)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
	at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:228)
	at androidx.compose.material.TextKt.ProvideTextStyle(Text.kt:265)
	at androidx.compose.material.MaterialThemeKt$MaterialTheme$1.invoke(MaterialTheme.kt:81)
	at androidx.compose.material.MaterialThemeKt$MaterialTheme$1.invoke(MaterialTheme.kt:80)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
	at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:228)
	at androidx.compose.material.MaterialThemeKt.MaterialTheme(MaterialTheme.kt:72)
	at com.example.html_b_test.ui.theme.ThemeKt.HtmlbtestTheme(Theme.kt:38)
	at com.example.html_b_test.MainActivity$Companion.Test(MainActivity.kt:38)
	at com.example.html_b_test.MainActivityKt.TestPreview(MainActivity.kt:71)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at androidx.compose.ui.tooling.ComposableInvoker.invokeComposableMethod(ComposableInvoker.kt:155)
	at androidx.compose.ui.tooling.ComposableInvoker.invokeComposable(ComposableInvoker.kt:195)
	at androidx.compose.ui.tooling.ComposeViewAdapter$init$3$1$composable$1.invoke(ComposeViewAdapter.kt:590)
	at androidx.compose.ui.tooling.ComposeViewAdapter$init$3$1$composable$1.invoke(ComposeViewAdapter.kt:588)
	at androidx.compose.ui.tooling.ComposeViewAdapter$init$3$1.invoke(ComposeViewAdapter.kt:625)
	at androidx.compose.ui.tooling.ComposeViewAdapter$init$3$1.invoke(ComposeViewAdapter.kt:583)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
	at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:228)
	at androidx.compose.ui.tooling.InspectableKt.Inspectable(Inspectable.kt:61)
	at androidx.compose.ui.tooling.ComposeViewAdapter$WrapPreview$1.invoke(ComposeViewAdapter.kt:531)
	at androidx.compose.ui.tooling.ComposeViewAdapter$WrapPreview$1.invoke(ComposeViewAdapter.kt:530)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
	at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:228)
	at androidx.compose.ui.tooling.ComposeViewAdapter.WrapPreview(ComposeViewAdapter.kt:525)
	at androidx.compose.ui.tooling.ComposeViewAdapter.access$WrapPreview(ComposeViewAdapter.kt:124)
	at androidx.compose.ui.tooling.ComposeViewAdapter$init$3.invoke(ComposeViewAdapter.kt:583)
	at androidx.compose.ui.tooling.ComposeViewAdapter$init$3.invoke(ComposeViewAdapter.kt:580)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
	at androidx.compose.ui.platform.ComposeView.Content(ComposeView.android.kt:402)
	at androidx.compose.ui.platform.AbstractComposeView$ensureCompositionCreated$1.invoke(ComposeView.android.kt:248)
	at androidx.compose.ui.platform.AbstractComposeView$ensureCompositionCreated$1.invoke(ComposeView.android.kt:247)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
	at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:228)
	at androidx.compose.ui.platform.CompositionLocalsKt.ProvideCommonCompositionLocals(CompositionLocals.kt:177)
	at androidx.compose.ui.platform.AndroidCompositionLocals_androidKt$ProvideAndroidCompositionLocals$3.invoke(AndroidCompositionLocals.android.kt:123)
	at androidx.compose.ui.platform.AndroidCompositionLocals_androidKt$ProvideAndroidCompositionLocals$3.invoke(AndroidCompositionLocals.android.kt:122)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
	at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:228)
	at androidx.compose.ui.platform.AndroidCompositionLocals_androidKt.ProvideAndroidCompositionLocals(AndroidCompositionLocals.android.kt:114)
	at androidx.compose.ui.platform.WrappedComposition$setContent$1$1$3.invoke(Wrapper.android.kt:157)
	at androidx.compose.ui.platform.WrappedComposition$setContent$1$1$3.invoke(Wrapper.android.kt:156)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
	at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:228)
	at androidx.compose.ui.platform.WrappedComposition$setContent$1$1.invoke(Wrapper.android.kt:156)
	at androidx.compose.ui.platform.WrappedComposition$setContent$1$1.invoke(Wrapper.android.kt:140)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
	at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
	at androidx.compose.runtime.ActualJvm_jvmKt.invokeComposable(ActualJvm.jvm.kt:74)
	at androidx.compose.runtime.ComposerImpl$doCompose$2$5.invoke(Composer.kt:3193)
	at androidx.compose.runtime.ComposerImpl$doCompose$2$5.invoke(Composer.kt:3183)
	at androidx.compose.runtime.SnapshotStateKt__DerivedStateKt.observeDerivedStateRecalculations(DerivedState.kt:252)
	at androidx.compose.runtime.SnapshotStateKt.observeDerivedStateRecalculations(Unknown Source)
	at androidx.compose.runtime.ComposerImpl.doCompose(Composer.kt:3183)
	at androidx.compose.runtime.ComposerImpl.composeContent$runtime_release(Composer.kt:3119)
	at androidx.compose.runtime.CompositionImpl.composeContent(Composition.kt:584)
	at androidx.compose.runtime.Recomposer.composeInitial$runtime_release(Recomposer.kt:811)
	at androidx.compose.runtime.CompositionImpl.setContent(Composition.kt:519)
	at androidx.compose.ui.platform.WrappedComposition$setContent$1.invoke(Wrapper.android.kt:140)
	at androidx.compose.ui.platform.WrappedComposition$setContent$1.invoke(Wrapper.android.kt:131)
	at androidx.compose.ui.platform.AndroidComposeView.setOnViewTreeOwnersAvailable(AndroidComposeView.android.kt:1015)
	at androidx.compose.ui.platform.WrappedComposition.setContent(Wrapper.android.kt:131)
	at androidx.compose.ui.platform.WrappedComposition.onStateChanged(Wrapper.android.kt:182)
	at androidx.lifecycle.LifecycleRegistry$ObserverWithState.dispatchEvent(LifecycleRegistry.java:354)
	at androidx.lifecycle.LifecycleRegistry.addObserver(LifecycleRegistry.java:196)
	at androidx.compose.ui.platform.WrappedComposition$setContent$1.invoke(Wrapper.android.kt:138)
	at androidx.compose.ui.platform.WrappedComposition$setContent$1.invoke(Wrapper.android.kt:131)
	at androidx.compose.ui.platform.AndroidComposeView.onAttachedToWindow(AndroidComposeView.android.kt:1102)
	at android.view.View.dispatchAttachedToWindow(View.java:21291)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3491)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3498)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3498)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3498)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3498)
	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3498)
	at android.view.AttachInfo_Accessor.setAttachInfo(AttachInfo_Accessor.java:58)
	at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:367)
	at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:443)
	at com.android.tools.idea.layoutlib.LayoutLibrary.createSession(LayoutLibrary.java:121)
	at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:721)
	at com.android.tools.idea.rendering.RenderTask.lambda$inflate$9(RenderTask.java:878)
	at com.android.tools.idea.rendering.RenderExecutor$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)

This is also a problem when using paparazzi to generate snapshot images. The newer paparazzi 1.2 (snapshot version, 1.2.0-20221214.164218-18 to be exact) seems to bring AGP 7.4.0-rc01 with it and with AGP maybe a new layoutlib version?. As soon as I use the new paparazzi version, it overrides my locally defined AGP version and the snapshot-generation fails with the same error I get for the preview in Android Studio.

Other tags like <i> or <u> are still working fine. Maybe it's related to Html.handleEndTag() which adds a fontWeightAdjustment to the SpanStyle for <b>- and <strong>-Tags but that's as far as I got investigating.