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Value passed as parameter never read

Reports redundant method parameters that can be replaced with local variables.

If all local usages of a parameter are preceded by assignments to that parameter, the parameter can be removed and its usages replaced with local variables. It makes no sense to have such a parameter, as values that are passed to it are overwritten. Usually, the problem appears as a result of refactoring.


void test(int p) { p = 1; System.out.print(p); }

After the quick-fix is applied:

void test() { int p = 1; System.out.print(p); }

Inspection Details

Available in:

IntelliJ IDEA 2023.3, Qodana for JVM 2023.3


Java, 233.SNAPSHOT

Last modified: 13 July 2023