'while' can be replaced with 'do while'

Reports while loops that could be more effectively written as do-while loops. There are while loops where the code just before the loop is identical to the code in the body of the loop. Replacing with a do-while loop removes the duplicated code. For while loops without such duplicated code, the quick fix is offered in the editor as well, but without highlighting.

Example:

  foo();
  while (x) {
      foo();
  }

Can be replaced with:

  do {
    foo();
  } while (x);

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.

WhileCanBeDoWhile

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 | Control flow issues

New in 2024.1

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection WhileCanBeDoWhile

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

IntelliJ IDEA 2025.2

Inspection Details
By default bundled with:	IntelliJ IDEA 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025