diff --git a/src/main/org/apache/tools/ant/util/ProcessUtil.java b/src/main/org/apache/tools/ant/util/ProcessUtil.java
index 71ab7e477..0a99766bf 100644
--- a/src/main/org/apache/tools/ant/util/ProcessUtil.java
+++ b/src/main/org/apache/tools/ant/util/ProcessUtil.java
@@ -21,6 +21,7 @@ import java.lang.management.ManagementFactory;
 
 /**
  * Process Utilities
+ * @since Ant 1.9.4
  */
 public class ProcessUtil {
     /**