Javac quirks

Reports known Javac issues, performance problems, and incompatibilities. For example, type inference may be slow when it has to process many nested calls.

The following code triggers a warning, as the vararg method call has 50+ poly arguments:

  Arrays.asList(
      Arrays.asList("a1", "b1"),
      Arrays.asList("a2", "b2"),
      ...
      Arrays.asList("a100", "b100"));

The quick-fix adds explicit type arguments, which makes compilation and IDE processing much faster:

  //noinspection RedundantTypeArguments
  Arrays.<List<String>>asList(
      Arrays.asList("a1", "b1"),
      Arrays.asList("a2", "b2"),
      ...
      Arrays.asList("a100", "b100"));

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.

JavacQuirks

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 | Compiler issues

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