java.lang.NullPointerException: Cannot invoke "kotlinx.coroutines.flow.Flow.collect when bumping up coroutines 1.6.4 to 1.8.1

[IvanSanchez-uam]

java.lang.NullPointerException: Cannot invoke "kotlinx.coroutines.flow.Flow.collect(kotlinx.coroutines.flow.FlowCollector, kotlin.coroutines.Continuation)"
	at com.x.y.z.oneclickfareupgrade.OneClickFareUpgradeViewModel$initFlightsJourneySummaryLoaded$1.invokeSuspend(OneClickFareUpgradeViewModel.kt:232)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.internal.DispatchedContinuationKt.resumeCancellableWith(DispatchedContinuation.kt:363)
	at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:26)
	at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable$default(Cancellable.kt:21)
	at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:88)
	at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:123)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:52)
	at kotlinx.coroutines.BuildersKt.launch(Unknown Source)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch$default(Builders.common.kt:43)
	at kotlinx.coroutines.BuildersKt.launch$default(Unknown Source)
	at com.x.y.z.oneclickfareupgrade.OneClickFareUpgradeViewModel.initFlightsJourneySummaryLoaded$flights_productionDebug(OneClickFareUpgradeViewModel.kt:218)
	at com.x.y.z.flightsinfosite.journeysummary.FlightsJourneySummaryLoadedKt$FlightsJourneySummaryLoaded$1.invokeSuspend(FlightsJourneySummaryLoaded.kt:22)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at androidx.compose.ui.test.ApplyingContinuationInterceptor$SendApplyContinuation.resumeWith(ApplyingContinuationInterceptor.kt:65)
	at androidx.compose.ui.test.FrameDeferringContinuationInterceptor$TrampolinedTask.resume(FrameDeferringContinuationInterceptor.kt:137)
	at androidx.compose.ui.test.FrameDeferringContinuationInterceptor.runWithoutResumingCoroutines(FrameDeferringContinuationInterceptor.kt:75)
	at androidx.compose.ui.test.TestMonotonicFrameClock.performFrame(TestMonotonicFrameClock.jvm.kt:132)
	at androidx.compose.ui.test.TestMonotonicFrameClock.access$performFrame(TestMonotonicFrameClock.jvm.kt:53)
	at androidx.compose.ui.test.TestMonotonicFrameClock$withFrameNanos$2$1$2.invokeSuspend(TestMonotonicFrameClock.jvm.kt:110)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTaskKt.resume(DispatchedTask.kt:231)
	at kotlinx.coroutines.DispatchedTaskKt.dispatch(DispatchedTask.kt:164)
	at kotlinx.coroutines.CancellableContinuationImpl.dispatchResume(CancellableContinuationImpl.kt:466)
	at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl(CancellableContinuationImpl.kt:500)
	at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl$default(CancellableContinuationImpl.kt:489)
	at kotlinx.coroutines.CancellableContinuationImpl.resumeUndispatched(CancellableContinuationImpl.kt:587)
	at kotlinx.coroutines.test.CancellableContinuationRunnable.run(TestDispatcher.kt:60)
	at kotlinx.coroutines.test.TestDispatcher.processEvent$kotlinx_coroutines_test(TestDispatcher.kt:24)
	at kotlinx.coroutines.test.TestCoroutineScheduler.runCurrent(TestCoroutineScheduler.kt:132)
	at androidx.compose.ui.test.junit4.AbstractMainTestClock$advanceDispatcher$1.invoke(AbstractMainTestClock.kt:74)
	at androidx.compose.ui.test.junit4.AbstractMainTestClock$advanceDispatcher$1.invoke(AbstractMainTestClock.kt:67)
	at androidx.compose.ui.test.junit4.AndroidSynchronization_androidKt.runOnUiThread(AndroidSynchronization.android.kt:33)
	at androidx.compose.ui.test.junit4.MainTestClockImpl$1.invoke(MainTestClockImpl.android.kt:32)
	at androidx.compose.ui.test.junit4.MainTestClockImpl$1.invoke(MainTestClockImpl.android.kt:32)
	at androidx.compose.ui.test.junit4.AbstractMainTestClock.advanceDispatcher(AbstractMainTestClock.kt:67)
	at androidx.compose.ui.test.junit4.AbstractMainTestClock.advanceTimeByFrame(AbstractMainTestClock.kt:38)
	at androidx.compose.ui.test.junit4.ComposeIdlingResource.isIdleNow(ComposeIdlingResource.android.kt:74)
	at androidx.compose.ui.test.junit4.RobolectricIdlingStrategy$runUntilIdle$1.invoke(RobolectricIdlingStrategy.android.kt:70)
	at androidx.compose.ui.test.junit4.RobolectricIdlingStrategy$runUntilIdle$1.invoke(RobolectricIdlingStrategy.android.kt:48)
	at androidx.compose.ui.test.junit4.AndroidSynchronization_androidKt.runOnUiThread(AndroidSynchronization.android.kt:33)
	at androidx.compose.ui.test.junit4.RobolectricIdlingStrategy.runUntilIdle(RobolectricIdlingStrategy.android.kt:48)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment.waitForIdle(ComposeUiTest.android.kt:336)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment.access$waitForIdle(ComposeUiTest.android.kt:228)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$AndroidComposeUiTestImpl.waitForIdle(ComposeUiTest.android.kt:406)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$AndroidComposeUiTestImpl.setContent(ComposeUiTest.android.kt:485)
	at androidx.compose.ui.test.junit4.AndroidComposeTestRule.setContent(AndroidComposeTestRule.android.kt:340)
	at com.x.y.BaseTest.withCompositionLocals(BaseTest.kt:109)
	at com.x.y.z.flightsinfosite.journeysummary.FlightsJourneySummaryLoadingTest$testJourneySummaryLoadingStateSuccess$1.invokeSuspend(FlightsJourneySummaryLoadingTest.kt:72)
	at com.x.y.z.flightsinfosite.journeysummary.FlightsJourneySummaryLoadingTest$testJourneySummaryLoadingStateSuccess$1.invoke(FlightsJourneySummaryLoadingTest.kt)
	at com.x.y.z.flightsinfosite.journeysummary.FlightsJourneySummaryLoadingTest$testJourneySummaryLoadingStateSuccess$1.invoke(FlightsJourneySummaryLoadingTest.kt)
	at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt$runTest$2$1$1.invokeSuspend(TestBuilders.kt:316)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
	at kotlinx.coroutines.test.TestDispatcher.processEvent$kotlinx_coroutines_test(TestDispatcher.kt:24)
	at kotlinx.coroutines.test.TestCoroutineScheduler.tryRunNextTaskUnless$kotlinx_coroutines_test(TestCoroutineScheduler.kt:99)
	at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt$runTest$2$1$workRunner$1.invokeSuspend(TestBuilders.kt:322)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
	at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:277)
	at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:95)
	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:69)
	at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source)
	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:48)
	at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source)
	at kotlinx.coroutines.test.TestBuildersJvmKt.createTestResult(TestBuildersJvm.kt:10)
	at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt.runTest-8Mi8wO0(TestBuilders.kt:310)
	at kotlinx.coroutines.test.TestBuildersKt.runTest-8Mi8wO0(Unknown Source)
	at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt.runTest-8Mi8wO0(TestBuilders.kt:168)
	at kotlinx.coroutines.test.TestBuildersKt.runTest-8Mi8wO0(Unknown Source)
	at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt.runTest-8Mi8wO0$default(TestBuilders.kt:160)
	at kotlinx.coroutines.test.TestBuildersKt.runTest-8Mi8wO0$default(Unknown Source)
	at com.x.y.z.flightsinfosite.journeysummary.FlightsJourneySummaryLoadingTest.testJourneySummaryLoadingStateSuccess(FlightsJourneySummaryLoadingTest.kt:57)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:61)
	at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:54)
	at androidx.compose.ui.test.junit4.AndroidComposeTestRule$apply$1$evaluate$1.invoke(AndroidComposeTestRule.android.kt:272)
	at androidx.compose.ui.test.junit4.AndroidComposeTestRule$apply$1$evaluate$1.invoke(AndroidComposeTestRule.android.kt:271)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$AndroidComposeUiTestImpl.withDisposableContent(ComposeUiTest.android.kt:491)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$runTest$1$1$1$1$1$1.invoke(ComposeUiTest.android.kt:323)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment.withComposeIdlingResource(ComposeUiTest.android.kt:375)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment.access$withComposeIdlingResource(ComposeUiTest.android.kt:228)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$runTest$1$1$1$1$1.invoke(ComposeUiTest.android.kt:322)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment.withWindowRecomposer(ComposeUiTest.android.kt:349)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment.access$withWindowRecomposer(ComposeUiTest.android.kt:228)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$runTest$1$1$1$1.invoke(ComposeUiTest.android.kt:321)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment.withTestCoroutines(ComposeUiTest.android.kt:362)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment.access$withTestCoroutines(ComposeUiTest.android.kt:228)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$runTest$1$1$1.invoke(ComposeUiTest.android.kt:320)
	at androidx.compose.ui.test.junit4.IdlingStrategy.withStrategy(IdlingStrategy.android.kt:52)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$runTest$1$1.invoke(ComposeUiTest.android.kt:319)
	at androidx.compose.ui.test.junit4.IdlingResourceRegistry.withRegistry(IdlingResourceRegistry.jvm.kt:157)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$runTest$1.invoke(ComposeUiTest.android.kt:318)
	at androidx.compose.ui.test.junit4.ComposeRootRegistry.withRegistry(ComposeRootRegistry.android.kt:146)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment.runTest(ComposeUiTest.android.kt:317)
	at androidx.compose.ui.test.junit4.AndroidComposeTestRule$apply$1.evaluate(AndroidComposeTestRule.android.kt:271)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.robolectric.RobolectricTestRunner$HelperTestRunner$1.evaluate(RobolectricTestRunner.java:580)
	at org.robolectric.internal.SandboxTestRunner$2.lambda$evaluate$2(SandboxTestRunner.java:287)
	at org.robolectric.internal.bytecode.Sandbox.lambda$runOnMainThread$0(Sandbox.java:99)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:840)	

Kotlin: 1.9.23
androidGradle: 8.3.2

I'm trying to bump up coroutines 1.6.4 and many issues come up when bumping up from versions 1.6.4 to 1.8.1, I have tried to change runTest { } to runBlocking { } as mentioned here and this workaround but neither of them worked.