'catch' block may ignore exception

Reports catch blocks that are empty or may ignore an exception.

While occasionally intended, empty catch blocks may complicate debugging. Also, ignoring a catch parameter might be wrong.

The inspection won't report any catch parameters named ignore, ignored, or _.

You can use the quick-fix to change the exception name to _.

Example:

  try {
    throwingMethod()
  } catch (ex: IOException) {

  }

After the quick-fix is applied:

  try {
    throwingMethod()
  } catch (_: IOException) {

  }

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.

KotlinCatchMayIgnoreException

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 | Probable bugs

Use the Do not warn when 'catch' block contains a comment option to ignore catch blocks with comments.

Inspection options

Here you can find the description of settings available for the 'catch' block may ignore exception inspection, and the reference of their default values.

Do not warn when 'catch' block contains a comment: Default: Selected

Availability

By default bundled with: IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,
Can be installed with plugin: Kotlin, 241.18072-IJ

Last modified: 18 June 2024