HBASE-28301 IntegrationTestImportTsv fails with UnsupportedOperationException (apache#5613)

Signed-off-by: Duo Zhang <zhangduo@apache.org>
Signed-off-by: Peter Somogyi <psomogyi@apache.org>
(cherry picked from commit a7429a7)
(cherry picked from commit 352b013)
Change-Id: Ie7948b1941b6d96e48b15a8aab81fd54f8e1645a

Author: NihalJain

hbase-it/src/test/java/org/apache/hadoop/hbase/mapreduce/IntegrationTestImportTsv.java

@@ -144,12 +144,10 @@ protected void doLoadIncrementalHFiles(Path hfiles, TableName tableName) throws
       ToolRunner.run(new LoadIncrementalHFiles(new Configuration(getConf())), args));
 
     Table table = null;
-    Scan scan = new Scan() {
-      {
-        setCacheBlocks(false);
-        setCaching(1000);
-      }
-    };
+    Scan scan = new Scan();
+    scan.setCacheBlocks(false);
+    scan.setCaching(1000);
+
     try {
       table = util.getConnection().getTable(tableName);
       Iterator<Result> resultsIt = table.getScanner(scan).iterator();