diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/Resource.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/Resource.java
index 80e569d5a9e6cf..9f73f96bece001 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/Resource.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/Resource.java
@@ -513,13 +513,17 @@ public int hashCode() {
   }
 
   /**
-   * Convert long to int for a resource value safely. This method assumes
-   * resource value is positive.
+   * Convert long to int for a resource value safely. Negative values are
+   * clamped to 0; values exceeding Integer.MAX_VALUE are clamped to
+   * Integer.MAX_VALUE.
    *
    * @param value long resource value
    * @return int resource value
    */
   protected static int castToIntSafely(long value) {
+    if (value < 0) {
+      return 0;
+    }
     if (value > Integer.MAX_VALUE) {
       return Integer.MAX_VALUE;
     }
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/test/java/org/apache/hadoop/yarn/api/records/TestResource.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/test/java/org/apache/hadoop/yarn/api/records/TestResource.java
index 060ca39c697386..1d8f6ad8c32969 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/test/java/org/apache/hadoop/yarn/api/records/TestResource.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/test/java/org/apache/hadoop/yarn/api/records/TestResource.java
@@ -43,6 +43,11 @@ void testCastToIntSafely() {
         Resource.castToIntSafely(Long.MAX_VALUE),
         "Cast to Integer.MAX_VALUE if the long is greater than "
             + "Integer.MAX_VALUE");
+
+    assertEquals(0, Resource.castToIntSafely(-1),
+        "Cast to 0 if the long is negative");
+    assertEquals(0, Resource.castToIntSafely(Long.MIN_VALUE),
+        "Cast to 0 if the long is negative");
   }
 
   @Test