Assignment to static field from instance context

Reports assignment to, or modification of static fields from within an instance method.

Although legal, such assignments are tricky to do safely and are often a result of marking fields static inadvertently.

Example:

  class Counter {
    private static int count = 0;

    void increment() {
      // Warning: updating a static field
      // from an instance method
      count++;
    }
  }

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.

AssignmentToStaticFieldFromInstanceMethod

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 | Assignment issues

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,
Can be installed with plugin:	Java, 243.23126

Last modified: 03 December 2024