Inspectopedia 2025.3 Help

Event handler method signature problems

Reports event handler issues, including incompatible argument types, ambiguous event handler methods, and incorrect return types.

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.

JavaFxEventHandler
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 | JavaFX

Inspection ID: JavaFxEventHandler

Inspection options

Here you can find the description of settings available for the Event handler method signature problems inspection, and the reference of their default values.

Detect event handler method having non-void return type

Option ID:

myDetectNonVoidReturnType

Default value:

Not selected

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 JavaFxEventHandler

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 2025.3, Qodana for JVM 2025.3,

Last modified: 03 December 2025