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Redundant 'if' statement

Reports if statements that can be simplified to a single assignment, return, or assert statement.

Example:

if (foo()) { return true; } else { return false; }

After the quick-fix is applied:

return foo();

Configure the inspection:

Use the Ignore chained 'if' statements option if you want to hide a warning for chained if statements.

For example, in the following code the warning will be hidden, but the quick-fix will still be available:

if (condition1) return true; if (condition2) return false; return true;

Note that replacing if (isTrue()) assert false; with assert isTrue(); may change the program semantics when asserts are disabled if condition has side effects. Use the Ignore 'if' statements with trivial 'assert' option if you want to hide a warning for if statements containing only assert statement in their bodies.

Inspection options

Option

Type

Default

Ignore chained 'if' statements

Checkbox

false

Ignore 'if' statements with trivial 'assert'

Checkbox

false

Inspection Details

Available in:

IntelliJ IDEA 2023.3, Qodana for JVM 2023.3

Plugin:

Java, 233.SNAPSHOT

Last modified: 13 July 2023