参考url : http://openjdk.java.net/install/
$ su - # yum install java-1.8.0-openjdk : # which java /usr/bin/java [endo@cent6 java]$ java -version openjdk version "1.8.0_91" OpenJDK Runtime Environment (build 1.8.0_91-b14) OpenJDK 64-Bit Server VM (build 25.91-b14, mixed mode) # alternatives --config java There are 3 programs which provide 'java'. Selection Command ----------------------------------------------- 1 /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java 2 /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java *+ 3 /usr/lib/jvm/jre-1.8.0-openjdk.x86_64/bin/java Enter to keep the current selection[+], or type selection number:
どうやら「alternatives --install」は、yum ?が行っているみたい。
# alternatives --install /usr/bin/java java /usr/lib/jvm/jre-1.8.0-openjdk.x86_64/bin/java 2
またJAVA_HOMEは次のようにしておけば、よい気がします
export JAVA_HOME='/usr/lib/jvm/java'