hadoop - openSUSE Leap下的默认JAVA安装在什么路径？

openSUSE Leap环境下练习Hadoop。
etc/hadoop/hadoop-env.sh配置如下：

# The java implementation to use.
export JAVA_HOME=/usr/lib64/java-1_7_0-openjdk-plugin

运行语句却提示找不到相关目录

dongxi@linux-ajcw:~/Public> /opt/hadoop-2.7.2/bin/hadoop jar /opt/hadoop-2.7.2/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.2.jar grep ./input/ output 'dfs[a-z]+'
/opt/hadoop-2.7.2/bin/hadoop: line 166: /usr/lib64/java-1_7_0-openjdk-plugin/bin/java: No such file or directory
dongxi@linux-ajcw:~/Public> ls /usr/lib64/java-1_7_0-openjdk-plugin/
bin  lib  share