HADOOP-19415. [JDK17] Upgrade JUnit from 4 to 5 in hadoop-common Part7.

Author: slfan1989

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestConfigRedactor.java

@@ -18,7 +18,7 @@
 
 package org.apache.hadoop.conf;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.Arrays;
 import java.util.List;

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/FSMainOperationsBaseTest.java

@@ -1001,13 +1001,13 @@ private void doTestRenameDirectoryAsNonExistentDirectory(Rename... options)
     fSys.mkdirs(dst.getParent());
 
     rename(src, dst, true, false, true, options);
-    Assert.assertFalse("Nested file1 exists", 
+    Assert.assertFalse("Nested file1 exists",
         exists(fSys, getTestRootPath(fSys, "test/hadoop/dir/file1")));
-    Assert.assertFalse("Nested file2 exists", 
+    Assert.assertFalse("Nested file2 exists",
         exists(fSys, getTestRootPath(fSys, "test/hadoop/dir/subdir/file2")));
     Assert.assertTrue("Renamed nested file1 exists",
         exists(fSys, getTestRootPath(fSys, "test/new/newdir/file1")));
-    Assert.assertTrue("Renamed nested exists", 
+    Assert.assertTrue("Renamed nested exists",
         exists(fSys, getTestRootPath(fSys, "test/new/newdir/subdir/file2")));
   }
 
@@ -1117,7 +1117,7 @@ public void testGetWrappedInputStream() throws IOException {
     FSDataInputStream in = fSys.open(src);
     InputStream is = in.getWrappedStream();
     in.close();
-    Assert.assertNotNull(is);  
+    Assert.assertNotNull(is);
   }
 
   @Test