Type parameter hides visible type

Reports type parameters that have the same names as the visible types in the current scope. Such parameter names may be confusing.

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.

TypeParameterHidesVisibleType

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 | Visibility

Example:

  abstract class MyList<T> extends AbstractList<T> {
    private List<T> elements;
    // type parameter 'T' hides type parameter 'T'
    public <T> T[] toArray(T[] array) {
        return elements.toArray(array);
    }
}

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