AMBARI-17645. Update JDK version of Dockerfile in dev-support (Masahiro Tanaka via alejandro)

dev-support/docker/docker/Dockerfile

@@ -26,7 +26,7 @@ ENV HOME /root
 
 #Install JAVA
 RUN wget --no-check-certificate --no-cookies --header "Cookie:oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u60-b27/jdk-8u60-linux-x64.rpm -O jdk-8u60-linux-x64.rpm
-RUN rpm -ivh jdk-7u55-linux-x64.rpm
+RUN rpm -ivh jdk-8u60-linux-x64.rpm
 ENV JAVA_HOME /usr/java/default/
 
 #Install Maven