ActivityThatMayCrash.kt

SomeStrictActivity.kt

class SomeStrictActivity : Activity() {
    companion object {
        @JvmStatic
        fun createIntent(context: Context, importantParameter: Parameter): Intent {
            val intent = Intent(context, SomeStrictActivity::class.java)
            intent.putExtra(EXTRA_PARAMETER, importantParameter)
            return intent
        }
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        
        val parameter = intent.getSerializableExtra(EXTRA_PARAMETER)
                // if launched properly this should never happen, so it's OK to crash when getSerializableExtra gives null
                ?: throw IllegalArgumentException("Required parameter $EXTRA_PARAMETER is missing in the intent.")
    }
}