optimize code

Author: wyjsonGo

GoRouter/src/main/java/com/wyjson/router/callback/GoCallbackImpl.java

@@ -1,5 +1,7 @@
 package com.wyjson.router.callback;
 
+import androidx.annotation.NonNull;
+
 import com.wyjson.router.core.Card;
 
 public abstract class GoCallbackImpl implements GoCallback {
@@ -17,7 +19,7 @@ public void onLost(Card card) {
     public abstract void onArrival(Card card);
 
     @Override
-    public void onInterrupt(Card card, Throwable exception) {
+    public void onInterrupt(Card card, @NonNull Throwable exception) {
 
     }
 }

GoRouter/src/main/java/com/wyjson/router/core/GoRouter.java

@@ -13,7 +13,6 @@
 import androidx.annotation.Nullable;
 import androidx.arch.core.util.Function;
 import androidx.core.app.ActivityCompat;
-import androidx.core.util.Supplier;
 import androidx.fragment.app.Fragment;
 
 import com.wyjson.router.callback.GoCallback;

GoRouter/src/main/java/com/wyjson/router/document/DocumentUtils.java

@@ -1,7 +1,6 @@
 package com.wyjson.router.document;
 
 import androidx.arch.core.util.Function;
-import androidx.core.util.Supplier;
 
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;

GoRouter/src/main/java/com/wyjson/router/exception/RouterException.java

@@ -5,6 +5,7 @@
 import androidx.annotation.RequiresApi;
 
 public class RouterException extends RuntimeException {
+
     public RouterException() {
     }
 

GoRouter/src/main/java/com/wyjson/router/service/ServiceHelper.java

@@ -6,7 +6,6 @@
 import com.wyjson.router.exception.RouterException;
 import com.wyjson.router.interfaces.IService;
 
-import java.util.HashMap;
 import java.util.Map;
 
 public class ServiceHelper {