Code clean up.

Author: sarveshkaushal

util/src/main/java/io/kubernetes/client/Copy.java

@@ -203,8 +203,6 @@ public void copyFileToPod(
     } finally {
       proc.destroy();
     }
-
-    return;
   }
 
   private boolean isTarPresentInContainer(String namespace, String pod, String container)

util/src/main/java/io/kubernetes/client/informer/impl/DefaultSharedIndexInformer.java

@@ -253,9 +253,6 @@ private long determineResyncPeriod(long desired, long check) {
     if (check == 0) {
       return 0;
     }
-    if (desired < check) {
-      return check;
-    }
-    return desired;
+    return Math.max(desired, check);
   }
 }

util/src/test/java/io/kubernetes/client/util/YamlTest.java

@@ -172,7 +172,7 @@ public void testLoadIntOrString() {
       assertTrue(
           "Target port for 'intPort' was parsed to a string, integer expected.",
           intPort.getTargetPort().isInteger());
-      assertEquals(1l, (long) intPort.getTargetPort().getIntValue());
+      assertEquals(1L, (long) intPort.getTargetPort().getIntValue());
     } catch (Exception ex) {
       assertNull("Unexpected exception: " + ex.toString(), ex);
     }