'equals()' called on array

Reports equals() calls that compare two arrays.

Calling equals() on an array compares identity and is equivalent to using ==. Use Arrays.equals() to compare the contents of two arrays, or Arrays.deepEquals() for multi-dimensional arrays.

Example:

  void sample(int[] first, int[] second){
    if (first.equals(second)) return;
  }

After the quick-fix is applied:

  void sample(int[] first, int[] second){
    if (Arrays.equals(first, second)) return;
  }

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.

ArrayEquals

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 | Probable bugs

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