Eclipse eclipse.ini XXMaxPermSize

I found in eclipse.ini

openFile --launcher.XXMaxPermSize 256M -showsplash org.eclipse.platform --launcher.XXMaxPermSize 256m

IFAIK XXMaxPermSize is parameter of JVM(MaxPermSize specifies the the maximum size for the permanent generation heap, a heap th开发者_开发问答at holds objects such as classes and methods). Why need this parameter repeate 2 times? Thanks.

The simple answer is that the eclipse.ini is organized into different sections for different options, and that that parameter is specified in multiple options, probably showsplash and product (even though you didn't post it)