Squashed commit of the following:

commit e4dd6b8
Author: Aly ezz <[email protected]>
Date:   Tue Dec 8 13:07:19 2020 +0200

    Add to string conversion

commit 532c48b
Author: Aly ezz <[email protected]>
Date:   Mon Dec 7 21:12:48 2020 +0200

    Add default values to network data object

Author: Daniel Schilling

android/src/main/java/com/instabug/instabugflutter/InstabugFlutterPlugin.java

@@ -885,10 +885,10 @@ public void networkLog(HashMap<String, Object> jsonObject) throws JSONException
         NetworkLog networkLog = new NetworkLog();
         String date = System.currentTimeMillis() + "";
         networkLog.setDate(date);
-        networkLog.setUrl((String) jsonObject.get("url"));
-        networkLog.setRequest((String) jsonObject.get("requestBody"));
-        networkLog.setResponse((String) jsonObject.get("responseBody"));
-        networkLog.setMethod((String) jsonObject.get("method"));
+        networkLog.setUrl((String) jsonObject.get("url").toString());
+        networkLog.setRequest((String) jsonObject.get("requestBody").toString());
+        networkLog.setResponse((String) jsonObject.get("responseBody").toString());
+        networkLog.setMethod((String) jsonObject.get("method").toString());
         networkLog.setResponseCode((Integer) jsonObject.get("responseCode"));
         networkLog.setRequestHeaders(
                 (new JSONObject((HashMap<String, String>) jsonObject.get("requestHeaders"))).toString(4));