Call of Java mutator method on immutable Kotlin collection
Reports Java mutator methods calls (like fill
, reverse
, shuffle
, sort
) on an immutable Kotlin collection.
This can lead to UnsupportedOperationException
at runtime.
Example:
import java.util.Collections
fun test() {
val immutableList = listOf(1, 2)
Collections.reverse(immutableList)
}
To fix the problem make the list mutable.
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.
JavaCollectionsStaticMethodOnImmutableList- 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.
Availability
- By default bundled with
- Can be installed with plugin
Kotlin, 241.18072-IJ
Last modified: 18 June 2024