它利用这一知识创建一个XML描述文件，这个文件为系统转储文件提供索引，指出各个数据结构的位置。
It USES that knowledge to create an XML description file that provides indexes into the system dump file that indicate the location of various data structures.
当收到来自用户的转储数据的请求时，每个线程获得一个锁，并将其转储到中心位置。
When a request comes from a user to dump the data, each thread takes a lock and dumps it to a central place.
转储文件的默认位置是JVM进程的当前工作目录。
The default location of the dumps is the current working directory of the JVM process.
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