com.google.errorprone

Nothing outside the APK knows this package by name - an in-house module, or a private SDK. What follows is what the code itself says.

In 25% of apps checked

What it contains28

Classes under this package in the newest build that carries it - Xiaomi Home 11.8.704. Sub-packages: annotations (28).

Class
com.google.errorprone.annotations.CanIgnoreReturnValue
com.google.errorprone.annotations.CheckReturnValue
com.google.errorprone.annotations.CompatibleWith
com.google.errorprone.annotations.CompileTimeConstant
com.google.errorprone.annotations.DoNotCall
com.google.errorprone.annotations.DoNotMock
com.google.errorprone.annotations.ForOverride
com.google.errorprone.annotations.FormatMethod
com.google.errorprone.annotations.FormatString
com.google.errorprone.annotations.Immutable
com.google.errorprone.annotations.IncompatibleModifiers
com.google.errorprone.annotations.InlineMe
com.google.errorprone.annotations.InlineMeValidationDisabled
com.google.errorprone.annotations.Keep
com.google.errorprone.annotations.Modifier
com.google.errorprone.annotations.MustBeClosed
com.google.errorprone.annotations.NoAllocation
com.google.errorprone.annotations.OverridingMethodsMustInvokeSuper
com.google.errorprone.annotations.RequiredModifiers
com.google.errorprone.annotations.RestrictedApi
com.google.errorprone.annotations.RestrictedInheritance
com.google.errorprone.annotations.ResultIgnorabilityUnspecified
com.google.errorprone.annotations.SuppressPackageLocation
com.google.errorprone.annotations.Var
com.google.errorprone.annotations.concurrent.GuardedBy
com.google.errorprone.annotations.concurrent.LazyInit
com.google.errorprone.annotations.concurrent.LockMethod
com.google.errorprone.annotations.concurrent.UnlockMethod

Each app's newest build, the most recently checked first. Where the version comes from is the file that states it.

App	App version	Classes
Xiaomi Home com.xiaomi.smarthome	11.8.704	28
Block Blast! com.block.juggle	10.8.4	29
Zoho Mail com.zoho.mail	3.7.2	29
Reserved com.lppsa.app.reserved	3.13.0	29
DuckDuckGo com.duckduckgo.mobile.android	5.297.1	27
Tapo com.tplink.iot	3.21.114	3
E Zdravlje com.nites.ezdravljeRS	2.2.15	31
EcoFlow com.ecoflow	6.17.4.14	3
Bolt ee.mtakso.client	CA.228.0	31
Polovni automobili com.infostud.android.pa	9.2.1	29
Wolt com.wolt.android	26.40.1	29
RMB ba.raiffeisenbank.mobile.prod	3.7.0	29
and more