Re: [Microemulator-users] Classloading changes in 2.0.1?

[Rushabh D. <ra...@pe...>]

Thanks Bartek - I tried to hack around the classloader and use the
instrumentMIDletClasses flag to turn off instrumentation - but to no
avail. I'll hack around some more and see what I can do; otherwise, I
could just restructure my code to not do various package private things
that it is currently doing - this is ugly, but doable.

Note that this is not the case for running the final jar through micro -
this happens when I'm developing and running code from eclipse on micro.
At that stage, the project naturally has a bunch of jars which have not
been collapsed into one, however micro still tries to do funny class
loading and things break.

-Rushabh

-----Original Message-----
From: ba...@gm... [mailto:ba...@gm...] On Behalf Of Bartek
Teodorczyk
Sent: Tuesday, June 19, 2007 6:26 AM
To: Rushabh Doshi
Cc: mic...@li...
Subject: Re: [Microemulator-users] Classloading changes in 2.0.1?

Hi,

Indeed, we changed classloading method in 2.0.1. Mostly because we
wanted to fix some core library incompapilities beetween Java ME and
Java SE and we started to use ASM bytecode intrumentation software for
that purpose.

Your example is a side effect of that change. However we designed new
classloader code to be compatible with MIDP packaging scheme
(jad/jar). Your example doesn't fit into that standard.

If you want to change that behaviour look into the following parts of
MicroEmulator code:

1. microemu-javase/src/main/java/org/microemu/app/Common.java
public static void openJadUrl(String urlString)
public static void openJadUrl(String urlString, MIDletClassLoader
midletClassLoader)
protected void loadFromJad(String jadUrl, MIDletClassLoader
midletClassLoader)

2.
microemu-javase/src/main/java/org/microemu/app/classloader/MIDletClassLo
ader.java

Bartek Teodorczyk




2007/6/18, Rushabh Doshi <ra...@pe...>:
>
>
>
> Hey folks,
>
> Did the classloading get changed in 2.0.1 onwards? Here is the
symptom, I
> haven't yet dug into exactly what is going on:
>
> I have Base.jar with namespace com.company which contains package
private
> class Package.class
>
> I have Dependent.jar with namespace com.company which contains class
> App.class which reference Package.class.
>
> Note that this is perfectly valid (two jars with the same namespace
> accessing package private classes).
>
> This works fine in micro-2.0.0 but fails with IllegalAccessError in
2.0.1
> and 2.0.2-SNAPSHOT.
>
> Does someone know off the top of their head what is going on? If not,
I can
> dig further into this issue.
>
> Thanks!
>  -Rushabh
>
> --
>
> Rushabh Doshi
>
> http://keeda.stanford.edu/~radoshi
>
>
>
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