Install JDK 8 from yum not sdkman (fixes #292)

Author: Alexander Patrikalakis

dynamodb-janusgraph-storage-backend-cfn.yaml

@@ -565,11 +565,8 @@ Resources:
           - - "#!/bin/bash\n"
             - "export SDKMAN_DIR=/usr/local/sdkman && curl -s https://get.sdkman.io | bash && source /usr/local/sdkman/bin/sdkman-init.sh\n"
             - "echo 'export SDKMAN_DIR=/usr/local/sdkman; source /usr/local/sdkman/bin/sdkman-init.sh' > /etc/profile.d/sdkman.sh\n"
-            - "yum update -y -q -e 0 && yum upgrade -y -q -e 0 && yum install -y java-1.8.0-openjdk > /home/ec2-user/yumupdates.log\n"
+            - "yum update -y -q -e 0 && yum upgrade -y -q -e 0 && yum install -y java-1.8.0-openjdk-devel > /home/ec2-user/yumupdates.log\n"
             - "yum remove -y java-1.7.0-openjdk > /home/ec2-user/yumremovejava7.log\n"
-            - "java -version > /home/ec2-user/java-version-before-sdkmvn.log\n"
-            - "sdk install java < /dev/null\n"
-            - "sdk current java > /home/ec2-user/java-version-from-sdkman.log\n"
             - "sdk install maven < /dev/null && set -x\n"
             - "mvn -version > /home/ec2-user/maven-installation-settings.log\n"
             - "export GREMLIN_SERVER_USERNAME='ec2-user'\n"