此外，提供的指导可以使你在不锁定你未来升级的情况下安全地修改这些包。
Additionally, guidance is provided to enable you to safely modify the packages without locking yourself out from future upgrades.
一个对机器拥有管理权限的终端用户应该直接安装并修改安装包。
An end user with administrative access on the machine would install and modify installation packages directly.
JAR无法进行版本控制，因此无法跟踪所创建或修改的jar包的历史。
JAR bundles can't be versioned; therefore, you can't track the history of created or modified JAR bundles.
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