Adds "☰" to the subject of a sample to make sure UTF-8 is working in Subject field.

Author: yepher

apps/sparkpost-samples-app/src/main/java/com/sparkpost/samples/SendEmailSample.java

@@ -65,7 +65,7 @@ private void sendEmail(String from, String[] recipients) throws SparkPostExcepti
         // Populate Email Body
         TemplateContentAttributes contentAttributes = new TemplateContentAttributes();
         contentAttributes.setFrom(new AddressAttributes(from));
-        contentAttributes.setSubject("Your subject content here. {{yourContent}}");
+        contentAttributes.setSubject("☰ Your subject content here. {{yourContent}}");
         contentAttributes.setText("Your Text content here.  {{yourContent}}");
         contentAttributes.setHtml("<p>Your <b>HTML</b> content here.  {{yourContent}}</p>");
         transmission.setContentAttributes(contentAttributes);