diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileContext.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileContext.java
index 22ac2ecbd7..eb5983f098 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileContext.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileContext.java
@@ -2231,7 +2231,7 @@ public boolean copy(final Path src, final Path dst, boolean deleteSource,
         InputStream in = awaitFuture(openFile(qSrc)
             .opt(FS_OPTION_OPENFILE_READ_POLICY,
                 FS_OPTION_OPENFILE_READ_POLICY_WHOLE_FILE)
-            .opt(FS_OPTION_OPENFILE_LENGTH,
+            .optLong(FS_OPTION_OPENFILE_LENGTH,
                 fs.getLen())   // file length hint for object stores
             .build());
         try (OutputStream out = create(qDst, createFlag)) {
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileUtil.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileUtil.java
index 2af0a7b9e7..a1a325b925 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileUtil.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileUtil.java
@@ -484,7 +484,7 @@ public static boolean copy(FileSystem srcFS, FileStatus srcStatus,
         in = awaitFuture(srcFS.openFile(src)
             .opt(FS_OPTION_OPENFILE_READ_POLICY,
                 FS_OPTION_OPENFILE_READ_POLICY_WHOLE_FILE)
-            .opt(FS_OPTION_OPENFILE_LENGTH,
+            .optLong(FS_OPTION_OPENFILE_LENGTH,
                 srcStatus.getLen())   // file length hint for object stores
             .build());
         out = dstFS.create(dst, overwrite);