응답코드가 200이 아닐때 상태코드를 담아 반환하는 예외추가

src/main/java/gauth/GAuth.java

@@ -1,6 +1,7 @@
 package gauth;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
+import gauth.exception.GAuthException;
 import org.apache.http.HttpResponse;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpGet;
@@ -124,7 +125,7 @@ private static Map<String, String> sendPost(Map<String, String> body, String tok
         CloseableHttpClient client = HttpClientBuilder.create().build();
         CloseableHttpResponse response = client.execute(request);
         if(response.getStatusLine().getStatusCode()!=200)
-            throw new RuntimeException();
+            throw new GAuthException(response.getStatusLine().getStatusCode());
         BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8"));
         String responseBody = bufferedReader.readLine();
         bufferedReader.close();

src/main/java/gauth/exception/GAuthException.java

@@ -0,0 +1,14 @@
+package gauth.exception;
+
+public class GAuthException extends RuntimeException{
+    private final Integer code;
+
+    public GAuthException(Integer code) {
+        super(code.toString());
+        this.code = code;
+    }
+
+    public Integer getCode() {
+        return code;
+    }
+}