== Why is this an issue? include::../jvm-description.adoc[] === Noncompliant code example [source,kotlin] ---- fun doSomething(file: File, lock: Lock) { file.delete() // Noncompliant // ... lock.tryLock() // Noncompliant } ---- === Compliant solution [source,kotlin] ---- fun doSomething(file: File, lock: Lock) { if (!file.delete()) { // file delete failed; take appropriate action } if (!lock.tryLock()) { // lock failed; take appropriate action } } ---- == Resources Although these resources talk about Java, the underlying information concerning the JVM is just as relevant for Kotlin. * https://wiki.sei.cmu.edu/confluence/x/xzdGBQ[CERT, EXP00-J.] - Do not ignore values returned by methods * https://wiki.sei.cmu.edu/confluence/x/TTZGBQ[CERT, FIO02-J.] - Detect and handle file-related errors * CWE - https://cwe.mitre.org/data/definitions/754[CWE-754 - Improper Check for Unusual Exceptional Conditions] ifdef::env-github,rspecator-view[] ''' == Implementation Specification (visible only on this page) include::../message.adoc[] ''' == Comments And Links (visible only on this page) include::../comments-and-links.adoc[] endif::env-github,rspecator-view[]