Inspectopedia 2025.2 Help

Incorrect @Async method signature

Reports incorrect return types of @Async methods.

For target method signatures, any parameter types are allowed. However, the return type should be either void or Future. It is also possible to return the more specific ListenableFuture or CompletableFuture types, which allow for richer interaction with the asynchronous task and for immediate composition with further processing steps.

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.

AsyncMethodInspection
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 | Spring | Spring Core | Code

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 AsyncMethodInspection

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

Inspection Details

By default bundled with:

IntelliJ IDEA 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025