JavaRa

JAVA在每次升级后，都会重新建一个目录。
JavaRa是一个清除历史JRE版本的工具。
JavaRa is a simple tool that does a simple job: it removes old and redundant versions of the Java Runtime Environment (JRE). Simply select "Check for Updates" or "Remove Older Version" to begin. JavaRa is free under the GNU GPL version two. More Information