Inspectopedia Help

Iterable is used as vararg

Reports suspicious usages of Collection or Iterable in vararg method calls.

For example, in the following method:

<T> boolean contains(T needle, T... haystack) {...}

a call like

if(contains("item", listOfStrings)) {...}

looks suspicious as the list will be wrapped into a single element array. Such code can be successfully compiled and will likely run without exceptions, but it's probably used by mistake.

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.

IterableUsedAsVararg
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 'Variable arity methods' which is available since Java 5.

New in 2019.2

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