IgnoredReturnValueCheck.java

import java.util.List;

class A {
  List<String> list;
  void voidMethod() {}
  int intMethod() {}
  UnknownType unknownTypeMethod() {}
  void foo() {
    int a = intMethod(); //Compliant
    intMethod(); //Compliant
    voidMethod(); //Compliant
    new A().intMethod();//Compliant
    new A().voidMethod();//Compliant
    unknownTypeMethod();//Compliant type is unknown
    unresolvedMethod();//Compliant method is not resolved so type is unknown
    fluentMethod(""); //Compliant
    Integer.valueOf("1").byteValue(); // Noncompliant {{The return value of "byteValue" must be used.}}
    "plop".replace('p', 'b'); // Noncompliant [[sc=12;ec=19]] {{The return value of "replace" must be used.}}
    new RuntimeException("plop").getStackTrace()[0].getClassName(); // Noncompliant {{The return value of "getClassName" must be used.}}
    a++;
    list.stream().filter(s -> s.length() > 4).map(s -> s.length()).forEach(i -> {System.out.println(i);});
  }
}