From 5b23224970b48d41adf96b3f5a520411792fe696 Mon Sep 17 00:00:00 2001
From: "Doroszlai, Attila" <6454655+adoroszlai@users.noreply.github.com>
Date: Mon, 24 Apr 2023 09:17:12 +0200
Subject: [PATCH] HADOOP-18714. Wrong StringUtils.join() called in
 AbstractContractRootDirectoryTest (#5578)

---
 .../fs/contract/AbstractContractRootDirectoryTest.java     | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/AbstractContractRootDirectoryTest.java b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/AbstractContractRootDirectoryTest.java
index 4b5af02ecd..924ebd0065 100644
--- a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/AbstractContractRootDirectoryTest.java
+++ b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/AbstractContractRootDirectoryTest.java
@@ -195,10 +195,9 @@ public void testListEmptyRootDirectory() throws IOException {
     for (FileStatus status : statuses) {
       ContractTestUtils.assertDeleted(fs, status.getPath(), false, true, false);
     }
-    FileStatus[] rootListStatus = fs.listStatus(root);
-    assertEquals("listStatus on empty root-directory returned found: "
-        + join("\n", rootListStatus),
-        0, rootListStatus.length);
+    Assertions.assertThat(fs.listStatus(root))
+        .describedAs("ls /")
+        .hasSize(0);
     assertNoElements("listFiles(/, false)",
         fs.listFiles(root, false));
     assertNoElements("listFiles(/, true)",