Build matrix test

.travis.yml

@@ -10,6 +10,8 @@ matrix:
     - jdk: openjdk6
       env: TARGET=hikaricp-java6
 
+install:
+
 script:
-  - "[ $TARGET == hikaricp] || (mvn install -DskipTests -Dmaven.javadoc.skip=true -B -V -pl $TARGET -P coverage)"
-  - "[ $TARGET == hikaricp-java6] || (mvn install -DskipTests -Dmaven.javadoc.skip=true -B -V -pl $TARGET)"
+  - if [ "$TARGET" = "hikaricp" ]; then mvn install -DskipTests -Dmaven.javadoc.skip=true -V -pl $TARGET -P coverage; fi"
+  - if [ "$TARGET" == "hikaricp-java6" ]; then mvn install -DskipTests -Dmaven.javadoc.skip=true -V -pl $TARGET; fi"