include::description.adoc[] 


This rule raises an issue when the return values of the following are ignored:

* `java.io.File` operations that return a status code (except `mkdirs`)
* `Iterator.hasNext()`
* `Enumeration.hasMoreElements()`
* `Lock.tryLock()`
* non-void `Condition.await*` methods
* `CountDownLatch.await(long, TimeUnit)`
* `Semaphore.tryAcquire`
* `BlockingQueue`: `offer`, `remove`