Redundant type arguments

Last modified: 03 December 2024

Reports calls to parametrized methods with explicit argument types that can be omitted since they will be unambiguously inferred by the compiler.

Using redundant type arguments is unnecessary and makes the code less readable.

Example:

List<String> list = Arrays.<String>asList("Hello", "World");

A quick-fix is provided to remove redundant type arguments:

List<String> list = Arrays.asList("Hello", "World");

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.

RedundantTypeArguments
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 | Verbose or redundant code constructs

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Java, 243.23126