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Constant condition in 'assert' statement

Reports assert statement conditions that are constants. assert statements with constant conditions will either always fail or always succeed. Such statements might be left over after a refactoring and are probably not intended.

Example:

void foo() { assert true; }

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.

ConstantAssertCondition
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

This inspection depends on the Java feature 'Assertions', which is available since Java 1.4.

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 ConstantAssertCondition

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

Inspection Details

By default bundled with:

IntelliJ IDEA 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025