Log4j: a runtime logging library.
log4j：运行时日志库。
librlog, a flexible message logging library, is a prerequisite for EncFS.
EncFS 需要 librlog，这是一个灵活的消息日志记录库。
The INI file example runs even without the Apache Commons logging library (commons-logging), but running the LDAP example results in an exception.
即便没有Apachecommonslogging library (commons - logging)，这个INI文件示例仍可运行，但是运行这个LDAP示例会导致一个异常。
So whilst in a traditional application, classes from a logging library, a client and server JAR may be loaded by the same class loader, in an OSGi module system, each would be loaded by their own.
因此，尽管在传统应用中，来自logging类库、client和serverJAR中的类都是由同一个类加载器加载的，但在OSGi模块系统中，他们都是由自己的类加载器加载的。
So whilst in a traditional application, classes from a logging library, a client and server JAR may be loaded by the same class loader, in an OSGi module system, each would be loaded by their own.
因此，尽管在传统应用中，来自logging类库、client和serverJAR中的类都是由同一个类加载器加载的，但在OSGi模块系统中，他们都是由自己的类加载器加载的。
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