Drop JDK6 on travis build #1207

Author: kazuki43zoo

.travis.yml

@@ -1,17 +1,11 @@
 language: java
 sudo: false
 
-addons:
-  apt:
-    packages:
-      - openjdk-6-jdk
-
 jdk:
   - oraclejdk9
   - oraclejdk8
   - openjdk8
   - openjdk7
-  - openjdk6
 
 before_install:
   - echo "MAVEN_OPTS='-Dlicense.skip=true'" > ~/.mavenrc

travis/install.sh

@@ -15,10 +15,7 @@
 #    limitations under the License.
 #
 
-if [ $TRAVIS_JDK_VERSION == "openjdk6" ]; then
-  # Java 1.6
-  ./mvnw install -DskipTests=true -Dmaven.javadoc.skip=true -B -V -Pjava16 --settings ./travis/settings.xml
-elif [ $TRAVIS_JDK_VERSION == "openjdk7" ]; then
+if [ $TRAVIS_JDK_VERSION == "openjdk7" ]; then
   # Java 1.7
   ./mvnw install -DskipTests=true -Dmaven.javadoc.skip=true -B -V -Pjava17 --settings ./travis/settings.xml
 else