Merge pull request #74 from SparkPost/feature/issue_72_fix_broken_Build

Feature/issue 72 fix broken build

Author: yepher

.travis.yml

@@ -1,3 +1,3 @@
 language: java
 jdk:
-- oraclejdk7
+- oraclejdk8

apps/sparkpost-samples-app/pom.xml

@@ -63,11 +63,6 @@
 		    <artifactId>json</artifactId>
 		    <version>20170516</version>
 		</dependency>
-		<dependency>
-			<groupId>com.google.code.gson</groupId>
-			<artifactId>gson</artifactId>
-			<version>2.3.1</version>
-		</dependency>
 	</dependencies>
 
 	<build>

apps/sparkpost-samples-app/src/main/java/com/sparkpost/error/samples/SendEmailErrorSample.java

@@ -76,8 +76,6 @@ private void sendEmail(String from, String[] recipients) throws SparkPostExcepti
 
         transmission.setContentAttributes(contentAttributes);
 
-        transmission.setContentAttributes(contentAttributes);
-
         // Send the Email
         IRestConnection connection = new RestConnection(this.client, getEndPoint());