Redundant 'close()'

Last modified: 03 December 2024

Reports unnecessary calls to close() at the end of a try-with-resources block and suggests removing them.

Example:

try(MyAutoCloseable ac = new MyAutoCloseable()) {
  foo();
  ac.close();
}

After the quick-fix is applied:

try(MyAutoCloseable ac = new MyAutoCloseable()) {
  foo();
}

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.

RedundantExplicitClose
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 | Java | Declaration redundancy

New in 2018.1

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Java, 243.23126