代码优化，由IDEA自动进行的Code Cleanup

Author: binarywang

weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxErrorExceptionHandler.java

@@ -7,6 +7,6 @@
  */
 public interface WxErrorExceptionHandler {
 
-  public void handle(WxErrorException e);
+  void handle(WxErrorException e);
 
 }

weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxMessageDuplicateChecker.java

@@ -22,6 +22,6 @@ public interface WxMessageDuplicateChecker {
    * @param messageId messageId需要根据上面讲的方式构造
    * @return 如果是重复消息，返回true，否则返回false
    */
-  public boolean isDuplicate(String messageId);
+  boolean isDuplicate(String messageId);
 
 }

weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxMessageInMemoryDuplicateChecker.java

@@ -87,11 +87,7 @@ public boolean isDuplicate(String messageId) {
     }
     checkBackgroundProcessStarted();
     Long timestamp = msgId2Timestamp.putIfAbsent(messageId, System.currentTimeMillis());
-    if (timestamp == null) {
-      // 第一次接收到这个消息
-      return false;
-    }
-    return true;
+    return timestamp != null;
   }
 
 

weixin-java-common/src/main/java/me/chanjar/weixin/common/session/InternalSession.java

@@ -13,7 +13,7 @@ public interface InternalSession {
    *
    * @param isValid The new value for the <code>isValid</code> flag
    */
-  public void setValid(boolean isValid);
+  void setValid(boolean isValid);
 
   /**
    * Return the <code>isValid</code> flag for this session.

weixin-java-common/src/main/java/me/chanjar/weixin/common/session/InternalSessionManager.java

@@ -28,22 +28,22 @@ public interface InternalSessionManager {
    * @exception IllegalStateException if a new session cannot be
    *  instantiated for any reason
    */
-  public InternalSession createSession(String sessionId);
+  InternalSession createSession(String sessionId);
 
   /**
    * Remove this Session from the active Sessions for this Manager.
    *
    * @param session Session to be removed
    */
-  public void remove(InternalSession session);
+  void remove(InternalSession session);
 
   /**
    * Remove this Session from the active Sessions for this Manager.
    *
    * @param session   Session to be removed
    * @param update    Should the expiration statistics be updated
    */
-  public void remove(InternalSession session, boolean update);
+  void remove(InternalSession session, boolean update);
 
   /**
    * Add this Session to the set of active Sessions for this Manager.
@@ -71,7 +71,7 @@ public interface InternalSessionManager {
   /**
    * Implements the Manager interface, direct call to processExpires
    */
-  public void backgroundProcess();
+  void backgroundProcess();
 
   /**
    * Set the default maximum inactive interval (in seconds)

weixin-java-common/src/main/java/me/chanjar/weixin/common/session/StandardSession.java

@@ -323,9 +323,8 @@ public boolean equals(Object o) {
     if (!attributes.equals(session.attributes)) return false;
     if (!facade.equals(session.facade)) return false;
     if (!id.equals(session.id)) return false;
-    if (!manager.equals(session.manager)) return false;
+    return manager.equals(session.manager);
 
-    return true;
   }
 
   @Override

weixin-java-common/src/main/java/me/chanjar/weixin/common/session/WxSession.java

@@ -4,14 +4,14 @@
 
 public interface WxSession {
 
-  public Object getAttribute(String name);
+  Object getAttribute(String name);
 
-  public Enumeration<String> getAttributeNames();
+  Enumeration<String> getAttributeNames();
 
-  public void setAttribute(String name, Object value);
+  void setAttribute(String name, Object value);
 
-  public void removeAttribute(String name);
+  void removeAttribute(String name);
 
-  public void invalidate();
+  void invalidate();
 
 }

weixin-java-common/src/main/java/me/chanjar/weixin/common/session/WxSessionManager.java

@@ -5,12 +5,12 @@ public interface WxSessionManager {
   /**
    * 获取某个sessionId对应的session,如果sessionId没有对应的session，则新建一个并返回。
    */
-  public WxSession getSession(String sessionId);
+  WxSession getSession(String sessionId);
 
   /**
    * 获取某个sessionId对应的session,如果sessionId没有对应的session，若create为true则新建一个，否则返回null。
    */
-  public WxSession getSession(String sessionId, boolean create);
+  WxSession getSession(String sessionId, boolean create);
 
 
 }

weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/InputStreamResponseHandler.java

@@ -14,7 +14,7 @@ public class InputStreamResponseHandler implements ResponseHandler<InputStream>
 
   public static final ResponseHandler<InputStream> INSTANCE = new InputStreamResponseHandler();
 
-  public InputStream handleResponse(final HttpResponse response) throws HttpResponseException, IOException {
+  public InputStream handleResponse(final HttpResponse response) throws IOException {
     final StatusLine statusLine = response.getStatusLine();
     final HttpEntity entity = response.getEntity();
     if (statusLine.getStatusCode() >= 300) {

weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/MediaDownloadRequestExecutor.java

@@ -39,7 +39,7 @@ public MediaDownloadRequestExecutor(File tmpDirFile) {
 
 
   @Override
-  public File execute(CloseableHttpClient httpclient, HttpHost httpProxy, String uri, String queryParam) throws WxErrorException, ClientProtocolException, IOException {
+  public File execute(CloseableHttpClient httpclient, HttpHost httpProxy, String uri, String queryParam) throws WxErrorException, IOException {
     if (queryParam != null) {
       if (uri.indexOf('?') == -1) {
         uri += '?';