HADOOP-19431. Fix Unit test.

Author: fanshilun

hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/SimpleCopyListing.java

@@ -119,6 +119,12 @@ protected SimpleCopyListing(Configuration configuration,
     this.randomizeFileListing = randomizeFileListing;
   }
 
+  private void initSimpleCopyListing(Configuration configuration,
+      Credentials credentials, int numListstatusThreads, int fileStatusLimit,
+      boolean randomizeFileListing) {
+
+  }
+
   protected SimpleCopyListing(Configuration configuration,
                               Credentials credentials,
                               DistCpSync distCpSync) {

hadoop-tools/hadoop-distcp/src/test/java/org/apache/hadoop/tools/TestCopyFilter.java

@@ -34,17 +34,17 @@ public class TestCopyFilter {
   public void testGetCopyFilterTrueCopyFilter() {
     Configuration configuration = new Configuration(false);
     CopyFilter copyFilter = CopyFilter.getCopyFilter(configuration);
-    assertTrue(
-           copyFilter instanceof TrueCopyFilter, "copyFilter should be instance of TrueCopyFilter");
+    assertTrue(copyFilter instanceof TrueCopyFilter,
+        "copyFilter should be instance of TrueCopyFilter");
   }
 
   @Test
   public void testGetCopyFilterRegexCopyFilter() {
     Configuration configuration = new Configuration(false);
     configuration.set(DistCpConstants.CONF_LABEL_FILTERS_FILE, "random");
     CopyFilter copyFilter = CopyFilter.getCopyFilter(configuration);
-    assertTrue(
-           copyFilter instanceof RegexCopyFilter, "copyFilter should be instance of RegexCopyFilter");
+    assertTrue(copyFilter instanceof RegexCopyFilter,
+        "copyFilter should be instance of RegexCopyFilter");
   }
 
   @Test
@@ -54,8 +54,8 @@ public void testGetCopyFilterRegexpInConfigurationFilter() {
     Configuration configuration = new Configuration(false);
     configuration.set(DistCpConstants.CONF_LABEL_FILTERS_CLASS, filterName);
     CopyFilter copyFilter = CopyFilter.getCopyFilter(configuration);
-    assertTrue(
-           copyFilter instanceof RegexpInConfigurationFilter, "copyFilter should be instance of RegexpInConfigurationFilter");
+    assertTrue(copyFilter instanceof RegexpInConfigurationFilter,
+        "copyFilter should be instance of RegexpInConfigurationFilter");
   }
 
   @Test