Subject: Re: sun-jdk15 and wireless toolkit v2.2
To: stefanos mparas <stefano@arx.net>
From: matthew sporleder <msporleder@gmail.com>
List: netbsd-users
Date: 06/20/2007 10:22:39
On 6/20/07, stefanos mparas <stefano@arx.net> wrote:
> hello ,
>
> i've installed sun's jdk/jre with linux emulation fro pkgsrc (
> pkgsrc/lang/sun-sdk15 & sun-jre15 )
> did all the things i think i had to do to make it work
> like mount emul linux procfs , set env variables ( JAVA_HOME , CLASSPATH
> ) etc ,
>
> so far java (with linux emulation) works fine ,
>
> the problem started when i installed the j2me toolkit ,
> (it is used to create java applications for mobile phones and some
> embedded boards)
> exact name : j2me_wireless_toolkit-2_2-linux-i386.bin  ( it's linux and
> it will run with emulation as jdk)
>
> everything went ok with installation and running , i could run
> precompiled example applications ,
> but ,
> couldn't compile new ones ,
> after a while a traced it down to , toolkit not being able to load and
> use the  "javac" class
>
> decompiled code from sun's toolkit
>
>                try
>                 {
>                         class1 =
> toolLoader.loadClass("com.sun.tools.javac.Main");
>                         method = class1.getMethod("compile", new Class[] {
>                                 java.lang.String[].class
>                         });
>                 }
>
> this error is easy reproduced if unset the CLASSPATH env  variable
> and compile any java program that makes use of loadClass(".....javac.....")
>
>
> i found out that the script to fire up the toolkit ( ktoolbar  )
> actually uses :
>
> javac -cp {location libraries of toolkit} other_options other_options
>
> this way it overrides totally (i think) the CLASSPATH env which points
> to the correct tools
> and here is the problem ,
> if i add javac -cp location_libraries_sdk15:location_libraries_wtk it
> works ok ,
>
> since i've recently switched from debian to netbsd at the computer where
> i work ,
> i digged a little at my back up tapes from linux , and didn't observed
> anything
> that could reproduce this problem on linux
>
> a friend of mine (with more java background than me and mostly a freebsd
> guy )
> pointed out that this might be happening due to not having a "native"
> installation of java
>
> so ,
> a) has anyone any thoughts on this ? could this be happening due to non
> native java ( sun-jdk instead of scsl-source-jdk )
>
> b) could someone reproduce this with a native java installation ?
>
> (from what i have tried on my system it's enough  to just visit
> http://www.javaworld.com/javatips/jw-javatip131.html?page=2
> download the simple example ,
> and compile with out specifying "-cp" at the command line.
>
> if we find a good solution ,
> we can fix wip/sun-j2me package which has set PKG_FAIL_REASON
> for quite a while now i think ,
>
> thanks in advance
>
> stefano _a_t_ arx.gr/net

So you have two versions of java installed?  If so, just remove the
one that doesn't work.

If not, a lot of java programs startup with the -cp command line
getting defined in a config file (something.properties) file, or from
a shell script (startup.sh, etc).

As far as fixing the native jvm, that's a little beyond me.  Sorry.  :)