Got it Thanks,Regis, 2009/6/25 Regis <xu.re...@gmail.com>
> galaxy wrote: > >> Thanks Regis >> >> 2009/6/25 Regis <xu.re...@gmail.com> >> >> galaxy wrote: >>> >>> Hi , >>>> I have several questions about the classlib . >>>> >>>> 1) >>>> I noticed that the module suncompat isn't in the jre list of jar files >>>> of harmony and also the lines of suncompat in bootclasspath.properties >>>> has >>>> been commented >>>> so I am wondering the function of this module ?Is it the same of >>>> xxx-stubs.jar ? >>>> >>>> suncompat provides some Sun internal classes that are widely used by >>> applications. I guess these classes just delegate functions to Harmony >>> classes which has equivalent functions. >>> >> >> >> One more thing I don't understand .It's the sun.misc.Unsafe class .It is >> included in both the kernel.jar >> and suncompat.jar .So is this the reason not including it in the boot >> class >> path ? >> > > kernel.jar should be in the first place of bootstrap classpath, > sun.misc.Unsafe in suncompat.jar would never be used even if uncommented in > bootclasspath.properties. > > I don't know why it is not including in boot classpath (it's a long time > ago story). Maybe people think its existence just for compatible reasons, > Harmony can work well without it. If someone used Sun specific APIs and > didn't willing to change, he could just add suncompat.jar to make his > program work. > > >> luni-kernel-stubs.jar is just stub classes to make compiler happy, the >>> "real" classes are provided by vm. >>> >>> >>> 2) >>>> I noticed that there are several modules like yoko , asm ,and so on >>>> ,unlike others ,they are in folders .And some of them the manifest file >>>> doesn't have the export / import >>>> statement including yoko , yoko-core , yoko.rim , yoko-rmi-impl , >>>> becl.-5.2 >>>> .So how are they related to the other modules in the jre ? I have >>>> searched >>>> several packages of them and found no relation between them and the >>>> other >>>> jre modules . >>>> >>>> As I know, yoko is rmi provider, asm is used by pack200 module. >>> >>> >>> Could anyone explain this to me :) >>>> Thanks ! >>>> >>>> >>>> -- >>> Best Regards, >>> Regis. >>> >>> >> >> >> > > -- > Best Regards, > Regis. > -- regards Tian
