chore: adding logs EFTCLIENT-4791 (#148)

* chore: adding logs

* chore: 4.1.7-RC.0

* chore: keep the import statements

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cordova-plugin-handpoint",
-  "version": "4.1.6-RC.0",
+  "version": "4.1.7-RC.0",
   "description": "Cordova Handpoint SDK Plugin",
   "cordova": {
     "id": "cordova-plugin-handpoint",

src/android/com/handpoint/cordova/HandpointHelper.java

@@ -495,12 +495,18 @@ public void setLocale(CallbackContext callbackContext, JSONObject params) throws
   @Override
   public void endOfTransaction(TransactionResult transactionResult, Device device) {
     SDKEvent event = new SDKEvent("endOfTransaction");
-    event.put("transactionResult", transactionResult);
-    event.put("device", device);
-    PluginResult result = new PluginResult(PluginResult.Status.OK, event.toJSONObject());
-    result.setKeepCallback(true);
-    if (this.callbackContext != null) {
-      this.callbackContext.sendPluginResult(result);
+    // print transaction result before serializing it
+    if (transactionResult != null) {
+      Logger.getLogger("App-Detailed-Logger").warning("***[APP] -> endOfTransaction received: " + transactionResult.toJSON());
+      event.put("transactionResult", transactionResult);
+      event.put("device", device);
+      PluginResult result = new PluginResult(PluginResult.Status.OK, event.toJSONObject());
+      result.setKeepCallback(true);
+      if (this.callbackContext != null) {
+        this.callbackContext.sendPluginResult(result);
+      }
+    } else {
+      Logger.getLogger("App-Detailed-Logger").warning("***[APP] -> endOfTransaction received: null");
     }
   }
 
@@ -887,6 +893,7 @@ public void getPaxModel(CallbackContext callbackContext, JSONObject params) thro
     }
   }
 
+  @Override
   protected void finalize() {
     this.api.unregisterEventsDelegate(this);
   }
@@ -896,4 +903,4 @@ private void setEventsHandler() {
     this.api.registerEventsDelegate(this);
   }
 
-}
+}