Code clean up

Author: sarveshkaushal

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

@@ -254,7 +254,7 @@ public InputStream getStandardOutputStream() throws IOException {
       return handler.getInputStream(1);
     }
 
-    public InputStream getErrorStream() throws IOException {
+    public InputStream getErrorStream() {
       return handler.getInputStream(2);
     }
 

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

@@ -16,7 +16,7 @@
 import java.util.ArrayList;
 
 public interface ConfigPersister {
-  public void save(
+  void save(
       ArrayList<Object> contexts,
       ArrayList<Object> clusters,
       ArrayList<Object> users,

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

@@ -49,7 +49,7 @@ public class WebSocketStreamHandler implements WebSockets.SocketListener, Closea
 
   private State state = State.UNINITIALIZED;
 
-  private static enum State {
+  private enum State {
     UNINITIALIZED,
     OPEN,
     CLOSED

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

@@ -45,31 +45,31 @@ public class WebSockets {
   /** A simple interface for a listener on a web socket */
   public interface SocketListener {
     /** Called when the socket is opened */
-    public void open(String protocol, WebSocket socket);
+    void open(String protocol, WebSocket socket);
 
     /**
      * Called when a binary media type message is received
      *
      * @param in The input stream containing the binary data
      */
-    public void bytesMessage(InputStream in);
+    void bytesMessage(InputStream in);
 
     /**
      * Called when a text media type message is received
      *
      * @param in The character stream containing the message
      */
-    public void textMessage(Reader in);
+    void textMessage(Reader in);
 
     /**
      * Called when there has been a failure
      *
      * @param t the exception associated with the failure.
      */
-    public void failure(Throwable t);
+    void failure(Throwable t);
 
     /** Called when the stream is closed. */
-    public void close();
+    void close();
   }
 
   /**

util/src/main/java/io/kubernetes/client/util/authenticators/Authenticator.java

@@ -23,19 +23,19 @@ public interface Authenticator {
    * Return the name of this authenticator, this should be the value that is also in a kubeconfig
    * file.
    */
-  public String getName();
+  String getName();
 
   /**
    * Get a token from this authenticator.
    *
    * @param config The configuration information for this authenticator
    * @return The new token, null of no such token can be found/generated
    */
-  public String getToken(Map<String, Object> config);
+  String getToken(Map<String, Object> config);
 
   /** Determine if this config is expired */
-  public boolean isExpired(Map<String, Object> config);
+  boolean isExpired(Map<String, Object> config);
 
   /** Refresh an expired token with a new fresh one. */
-  public Map<String, Object> refresh(Map<String, Object> config);
+  Map<String, Object> refresh(Map<String, Object> config);
 }

util/src/main/java/io/kubernetes/client/util/taints/Taints.java

@@ -18,7 +18,7 @@
 import java.util.Iterator;
 
 public class Taints {
-  public static enum Effect {
+  public enum Effect {
     NO_SCHEDULE {
       public String toString() {
         return "NoSchedule";