Annotate ThreadFactory.

jspecify · Jan 25, 2023 · 24191c6 · 24191c6
1 parent d053508
commit 24191c6
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/java.base/share/classes/java/util/concurrent/ThreadFactory.java b/src/java.base/share/classes/java/util/concurrent/ThreadFactory.java
@@ -35,6 +35,9 @@
 
 package java.util.concurrent;
 
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
+
 /**
  * An object that creates new threads on demand.  Using thread factories
  * removes hardwiring of calls to {@link Thread#Thread(Runnable) new Thread},
@@ -55,6 +58,7 @@
  * @since 1.5
  * @author Doug Lea
  */
+@NullMarked
 public interface ThreadFactory {
 
     /**
@@ -65,5 +69,5 @@ public interface ThreadFactory {
      * @return constructed thread, or {@code null} if the request to
      *         create a thread is rejected
      */
-    Thread newThread(Runnable r);
+    @Nullable Thread newThread(Runnable r);
 }