Fix syntax inconsitency for L2 test case , and include GRADLE_OPTS env variables in travis config

Author: robincher

.travis.yml

@@ -3,6 +3,9 @@ language: java
 jdk:
 - oraclejdk8
 
+env:
+- GRADLE_OPTS="-Dfile.encoding=utf-8"
+
 before_cache:
   - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
   - rm -fr $HOME/.gradle/caches/*/plugin-resolution/

build.gradle

@@ -6,8 +6,6 @@ plugins {
 
 version '1.0-SNAPSHOT'
 
-sourceCompatibility = 1.8
-
 tasks.withType(JavaCompile) {
     options.encoding = "UTF-8"
 }

src/test/java/L2SignatureTest.java

@@ -12,21 +12,20 @@
 import com.api.util.ApiSecurity.ApiAuthorization;
 
 /**
- * @author govtech
+ * @author GDS-PDD
  *
  */
 public class L2SignatureTest {
 
 	// file name follow unix convention...
 	private static final String privateCertName = getLocalPath("certificates/alpha.test.p12");
-	private static final String publicCertName = getLocalPath("Certificates/alpha.test.cer");
+	private static final String publicCertName = getLocalPath("certificates/alpha.test.cer");
 
 	private static final String baseString = "message";
 	private static final String password = "passwordkey";
 	private static final String alias = "alpha";
 
 	static final PrivateKey privateKey = getPrivateKeyLocal(privateCertName, password, alias);
-
 	static final PublicKey publicKey = getPublicKeyLocal(publicCertName);
 
 	private static final String message = "Lorem ipsum dolor sit amet, vel nihil senserit ei. Ne quo erat feugait disputationi.";