fix style errors

Author: Ravindra Dingankar

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/lib/MutableInverseQuantiles.java

@@ -50,9 +50,9 @@ static class InversePercentile extends Quantile {
   }
 
   @VisibleForTesting
-  public static final Quantile[] INVERSE_QUANTILES = { new InversePercentile(50),
+  public static final Quantile[] INVERSE_QUANTILES = {new InversePercentile(50),
       new InversePercentile(25), new InversePercentile(10),
-      new InversePercentile(5), new InversePercentile(1) };
+      new InversePercentile(5), new InversePercentile(1)};
 
   private ScheduledFuture<?> scheduledTask;
 

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/metrics2/util/TestSampleQuantiles.java

@@ -40,7 +40,7 @@ public class TestSampleQuantiles {
   Random rnd = new Random(0xDEADDEAD);
   final static int NUM_REPEATS = 10;
 
-    @Before
+  @Before
   public void init() {
     estimator = new SampleQuantiles(quantiles);
   }
@@ -102,7 +102,7 @@ public void testQuantileError() throws IOException {
     // Repeat shuffle/insert/check cycles 10 times
     for (int i = 0; i < NUM_REPEATS; i++) {
 
-      // Shuffle  
+      // Shuffle
       Collections.shuffle(Arrays.asList(values), rnd);
       estimator.clear();
 
@@ -130,7 +130,8 @@ public void testQuantileError() throws IOException {
    */
   @Test
   public void testInverseQuantiles() throws IOException {
-    SampleQuantiles inverseQuantilesEstimator = new SampleQuantiles(MutableInverseQuantiles.INVERSE_QUANTILES);
+    SampleQuantiles inverseQuantilesEstimator = 
+        new SampleQuantiles(MutableInverseQuantiles.INVERSE_QUANTILES);
     final int count = 100000;
     int[] values = new int[count];
     for (int i = 0; i < count; i++) {

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/test/MetricsAsserts.java

@@ -392,13 +392,13 @@ public static void assertQuantileGauges(String prefix,
    */
   public static void assertQuantileGauges(String prefix,
       MetricsRecordBuilder rb, String valueName) {
-    verify(rb).addGauge(eqName(info(prefix + "NumOps", "")), geq(0l));
+    verify(rb).addGauge(eqName(info(prefix + "NumOps", "")), geq(0L));
     for (Quantile q : MutableQuantiles.quantiles) {
       String nameTemplate = prefix + "%dthPercentile" + valueName;
       int percentile = (int) (100 * q.quantile);
       verify(rb).addGauge(
           eqName(info(String.format(nameTemplate, percentile), "")),
-          geq(0l));
+          geq(0L));
     }
   }