Static collection

Reports static fields of a Collection type. While it's not necessarily a problem, static collections often cause memory leaks and are therefore prohibited by some coding standards.

Example:

  public class Example {
    static List<String> list = new ArrayList<>();

  }

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.

StaticCollection

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 | Memory

Configure the inspection:

Use the Ignore weak static collections or maps option to ignore the fields of the java.util.WeakHashMap type.

Inspection options

Here you can find the description of settings available for the Static collection inspection, and the reference of their default values.

Ignore weak static collections or maps: Not selected

Availability

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

Last modified: 18 June 2024