Mark Timeouts' thread as daemon and name it

CHANGELOG.md

@@ -1,3 +1,7 @@
+## [1.0.6] - 2018-04-14
+
+* Mark Timeouts' thread as daemon and name it. ([#4](https://github.com/rnorth/duct-tape/pull/4))
+
 ## [1.0.5] - 2016-02-20
 
 * Add retry-until-count option (as alternative to until timeout) to `Unreliables`

src/main/java/org/rnorth/ducttape/timeouts/Timeouts.java

@@ -3,6 +3,7 @@
 import org.jetbrains.annotations.NotNull;
 
 import java.util.concurrent.*;
+import java.util.concurrent.atomic.AtomicInteger;
 
 import static org.rnorth.ducttape.Preconditions.check;
 
@@ -11,7 +12,17 @@
  */
 public class Timeouts {
 
-    private static final ExecutorService EXECUTOR_SERVICE = Executors.newCachedThreadPool();
+    private static final ExecutorService EXECUTOR_SERVICE = Executors.newCachedThreadPool(new ThreadFactory() {
+
+        final AtomicInteger threadCounter = new AtomicInteger(0);
+
+        @Override
+        public Thread newThread(@NotNull Runnable r) {
+            Thread thread = new Thread(r, "ducttape-" + threadCounter.getAndIncrement());
+            thread.setDaemon(true);
+            return thread;
+        }
+    });
 
     /**
      * Execute a lambda expression with a timeout. If it completes within the time, the result will be returned.