Crash: IllegalStateException: parentStyle must not be null

[mzorz]

Crash observed while testing Aztec with monkeys

:Sending Touch (ACTION_DOWN): 0:(586.0,1017.0)
:Sending Touch (ACTION_UP): 0:(606.0217,1014.35205)
// CRASH: org.wordpress.aztec (pid 14927)
// Short Msg: java.lang.IllegalStateException
// Long Msg: java.lang.IllegalStateException: parentStyle must not be null
// Build Label: google/sdk_gphone_x86/generic_x86:8.0.0/OSR1.170901.056/4497355:userdebug/dev-keys
// Build Changelist: 4497355
// Build Time: 1513035881000
// java.lang.IllegalStateException: parentStyle must not be null
// 	at org.wordpress.aztec.plugins.CssUnderlinePlugin.beforeSpansProcessed(CssUnderlinePlugin.kt:44)
// 	at org.wordpress.aztec.AztecParser.preprocessSpans(AztecParser.kt:117)
// 	at org.wordpress.aztec.AztecParser.toHtml(AztecParser.kt:96)
// 	at org.wordpress.aztec.AztecText.parseHtml(AztecText.kt:1331)
// 	at org.wordpress.aztec.AztecText.toPlainHtml(AztecText.kt:1302)
// 	at org.wordpress.aztec.AztecText.toPlainHtml(AztecText.kt:1290)
// 	at org.wordpress.aztec.AztecText.fromHtml(AztecText.kt:1186)
// 	at org.wordpress.aztec.AztecText.fromHtml$default(AztecText.kt:1160)
// 	at org.wordpress.aztec.History.setTextFromHistory(History.kt:150)
// 	at org.wordpress.aztec.History.undo(History.kt:137)
// 	at org.wordpress.aztec.AztecText.undo(AztecText.kt:1140)
// 	at org.wordpress.aztec.demo.MainActivity.onOptionsItemSelected(MainActivity.kt:553)
// 	at android.app.Activity.onMenuItemSelected(Activity.java:3435)
// 	at androidx.fragment.app.FragmentActivity.onMenuItemSelected(FragmentActivity.java:436)
// 	at androidx.appcompat.app.AppCompatActivity.onMenuItemSelected(AppCompatActivity.java:196)
// 	at androidx.appcompat.view.WindowCallbackWrapper.onMenuItemSelected(WindowCallbackWrapper.java:109)
// 	at androidx.appcompat.app.AppCompatDelegateImpl.onMenuItemSelected(AppCompatDelegateImpl.java:888)
// 	at androidx.appcompat.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:840)
// 	at androidx.appcompat.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:158)
// 	at androidx.appcompat.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:991)
// 	at androidx.appcompat.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:981)
// 	at androidx.appcompat.widget.ActionMenuView.invokeItem(ActionMenuView.java:625)
// 	at androidx.appcompat.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:151)
// 	at android.view.View.performClick(View.java:6256)
// 	at android.view.View$PerformClick.run(View.java:24701)
// 	at android.os.Handler.handleCallback(Handler.java:789)
// 	at android.os.Handler.dispatchMessage(Handler.java:98)
// 	at android.os.Looper.loop(Looper.java:164)
// 	at android.app.ActivityThread.main(ActivityThread.java:6541)
// 	at java.lang.reflect.Method.invoke(Native Method)
// 	at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
// 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
// 
** Monkey aborted due to error.

Device: Pixel 2 emulator with Android 8.0

State used to reproduce: clean wiped emu, clean your clipboard memory as well (issue echo -n '' | pbcopy on a terminal window), then run:

adb -s emulator-5554 shell monkey -p org.wordpress.aztec -v 1000000
and wait.
You may end up having to run it 2 or 3 times (it will crash before that with other crashes) until this state is reached.

[maxme]

This one seems to happen again since we released wpandroid 14.0.

https://sentry.io/share/issue/d8e86c0fd5a144708dca6c1ece393b5e/

[sentry-io]

Sentry issue: WORDPRESS-ANDROID-8KW

[sentry-io]

Sentry issue: WORDPRESS-ANDROID-8YY

[designsimply]

Events in the last 90d: 11,000
Users affected in the last 90d: 1,200
_{WORDPRESS-ANDROID-8KW: https://sentry.io/share/issue/d8e86c0fd5a144708dca6c1ece393b5e/}