'suspendCoroutine' lacks cancellation guarantees

Reports usages of kotlin.coroutines.suspendCoroutine and suggests replacing them with kotlinx.coroutines.suspendCancellableCoroutine when the kotlinx.coroutines dependency is present.

The suspendCancellableCoroutine variant provides built-in cancellation support that is important for structured concurrency and proper resource management.

Example:

    suspend fun usage(): String {
        return suspendCoroutine { continuation ->
            continuation.resume("Hello!")
        }
    }

After the quick-fix is applied:

    suspend fun usage(): String {
        return suspendCancellableCoroutine { continuation ->
            continuation.resume("Hello!")
        }
    }

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

SuspendCoroutineLacksCancellationGuarantees

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Kotlin | Coroutine inspections

Inspection ID: SuspendCoroutineLacksCancellationGuarantees

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection SuspendCoroutineLacksCancellationGuarantees

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

IntelliJ IDEA 2025.3

Inspection Details
By default bundled with:	IntelliJ IDEA 2025.3, Qodana for JVM 2025.3,

Last modified: 03 December 2025