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MockKException: No other calls allowed in stdObjectAnswer than equals/hashCode/toString on trying to static mock Android TextUtils.isEmpty()

See original GitHub issue

Expected Behavior

I am trying to mock an interface method, which returns GoogleSignInOptions, where Android TextUtils are used internally.

Current Behavior

Statick mocking TextUtils causes MockK exception.

Context

MockK version: 1.10.0
OS: MacOS 10.15.6
Kotlin version: 1.4.10
JDK version: openjdk version "1.8.0_265
JUnit version: 5.6.2
Type of test: Unit test

Stack trace

Caused by: io.mockk.MockKException: No other calls allowed in stdObjectAnswer than equals/hashCode/toString
	at io.mockk.impl.stub.MockKStub.stdObjectAnswer(MockKStub.kt:78)
	at io.mockk.impl.recording.states.SafeLoggingState.call(SafeLoggingState.kt:9)
	at io.mockk.impl.recording.CommonCallRecorder.call(CommonCallRecorder.kt:53)
	at io.mockk.impl.stub.MockKStub.handleInvocation(MockKStub.kt:263)
	at io.mockk.impl.instantiation.JvmMockFactoryHelper$mockHandler$1.invocation(JvmMockFactoryHelper.kt:25)
	at io.mockk.proxy.jvm.advice.Interceptor.call(Interceptor.kt:20)
	at android.text.TextUtils.isEmpty(TextUtils.java)
	at com.google.android.gms.common.internal.Preconditions.checkNotEmpty(com.google.android.gms:play-services-basement@@17.1.1:7)
	at com.google.android.gms.common.api.Scope.<init>(com.google.android.gms:play-services-basement@@17.1.1:2)
	at com.google.android.gms.common.api.Scope.<init>(com.google.android.gms:play-services-basement@@17.1.1:6)
	at com.google.android.gms.auth.api.signin.GoogleSignInOptions.<clinit>(com.google.android.gms:play-services-base@@17.1.0:151)
	... 97 more

Minimal reproducible code (the gist of this issue)

// -----------------------[ GRADLE DEFINITIONS ] -----------------------

classpath 'com.google.gms:google-services:4.3.3'

dependencies {
       testImplementation "io.mockk:mockk:1.10.0"
}
// -----------------------[ YOUR CODE STARTS HERE ] -----------------------

interface AuthService {
    fun getGoogleSignInOptions(): GoogleSignInOptions
}

class SomeViewModel(
    private val authService: AuthService
) : ViewModel() {

    fun getGoogleSignInOptions(): GoogleSignInOptions = authService.getGoogleSignInOptions()
}


class MockingTextUtilsInGoogleSignInOptionsTest {

    private val authService = mockk<AuthService>().apply {
        every { getGoogleSignInOptions() } returns mockk()
    }
    private val vm = SomeViewModel(authService)

    @Test
    fun getGoogleSignInOptions() {
        mockkStatic(TextUtils::class)
        every { TextUtils.isEmpty(any()) } returns false

        vm.getGoogleSignInOptions()
        verify(atMost = 1) { authService.getGoogleSignInOptions() }
    }
}

// -----------------------[ YOUR CODE ENDS HERE ] -----------------------