openide/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/surroundWithIf/beforeInsideLambda.java

// "Surround with 'if (i != null)'" "true-preview"
import org.jetbrains.annotations.Nullable;

class A {
    void foo(@Nullable String i) {
        Runnable r = () -> i.<caret>length();
    }
}