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Array.length in loop condition

Reports accesses to the .length property of an array in the condition part of a loop statement. In highly resource constrained environments, such calls may have adverse performance implications.

This inspection is intended for Java ME and other highly resource constrained environments. Applying the results of this inspection without consideration might have negative effects on code clarity and design.

Example:

void foo(Object[] x) { for (int i = 0; i < x.length; i++) { /**/ } }

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.

ArrayLengthInLoopCondition
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 | Performance | Embedded

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.2, Qodana for JVM 2024.2,

Can be installed with plugin:

Java, 242.22892

Last modified: 11 September 2024