How to define OpenJDK 8 in CentOS based Dockerfile?

When JDK for development is installed, then JAVA_HOME should point to JDK instead of JRE.

RUN yum install -y \
   java-1.8.0-openjdk \
   java-1.8.0-openjdk-devel

ENV JAVA_HOME /usr/lib/jvm/java-1.8.0-openjdk/

Seems to be as easy as this:

FROM centos

RUN yum install -y \
       java-1.8.0-openjdk \
       java-1.8.0-openjdk-devel

ENV JAVA_HOME /etc/alternatives/jre
.
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