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.
