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yewklid
Posts: 6
Joined: Sat Jan 02, 2010 12:58 pm

Newbie getting started

Post by yewklid »

I'm having a problem with the newlist-gs frontend. When I click on the Newlisp desktop icon here is an error message about a java class not found. When I try to get it running from the console, I get more or less the same problem (see below). The computer is fairly new with Windows 7 and Java Standard edition runtime version 6.
Any help much appreciated.


newLISP v.10.1.7 on Win32 IPv4, execute 'newlisp -h' for more info.

> (load"guiserver.lsp")
(lambda (gs:id gs:action) (net-send gs:out (string "frame-resized " gs:id " " gs
:action
"\n")))
> (gs:init)
Exception in thread "main" java.lang.NoClassDefFoundError: C:\Program Files (x86
)\newlisp\guiserver/jar
Caused by: java.lang.ClassNotFoundException: C:\Program Files (x86)\newlisp\guis
erver.jar
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: C:\Program Files (x86)\newlisp\guiserver.jar. Pr
ogram will exit.

cormullion
Posts: 2037
Joined: Tue Nov 29, 2005 8:28 pm
Location: latiitude 50N longitude 3W
Contact:

Re: Newbie getting started

Post by cormullion »

Hi there. I have no idea, not being a Windows user, but I noticed the message:

Could not find the main class: C:\Program Files (x86)\newlisp\guiserver.jar.

and in the guiserver.lsp file it says:
(load "c:/Program Files/newlisp/guiserver.lsp")
'guiserver.lsp' expects the server 'guiserver.jar' to be
in the directoey specified in the environment variable NEWLISPDIR.
When newLISP starts up and this variable is not set yet, it sets it
to a default value of '/usr/share/newlisp' on MacOS X and Unix OSs, and
to 'C:\Program Files\newlisp' or whatever it finds in the 'PROGRAMFILES'
environment variable on Win32 systems and adding '/newlisp' to it.
This can be overwritten by specifying system wide setting for the environment
variable NEWLISPDIR, which normally is set to '%PROGRAMFILES%/newlisp'
on Win32. When using the Win32 binary installer 'NEWLISPDIR' is written to
to the registry automatically and gets into effect after rebooting.
So I'd check all that stuff first... Also, report on Java versions etc, so someone might spot something there too....

m35
Posts: 171
Joined: Wed Feb 14, 2007 12:54 pm
Location: Carifornia

Re: Newbie getting started

Post by m35 »

I'm pretty sure your problem is that .jar files are not associated with the proper command.

guiserver.lsp runs this command:

Code: Select all

cmd /c '"%NEWLISPDIR%/guiserver.jar"' 47011
If .jar files are associated with this command:

Code: Select all

javaw.exe
Then the guiserver.lsp is essentially running the command:

Code: Select all

javaw.exe "%NEWLISPDIR%/guiserver.jar"
which will produce the error you posted.

.jar files need to be associated with this command for guiserver.lsp to work:

Code: Select all

javaw.exe -jar
so that it will run this (correct) command:

Code: Select all

javaw.exe -jar "%NEWLISPDIR%/guiserver.jar"

yewklid
Posts: 6
Joined: Sat Jan 02, 2010 12:58 pm

Re: Newbie getting started

Post by yewklid »

Thank you both for your help. I know how to associate jar files with javaw.exe instead of java.exe but I can't see how to accomplish the '-jar "%NEWLISPDIR%/guiserver.jar" part of it in Windows 7.
You can choose a programme to open a file type but nothing more.

This does seem to be the key to the problem because the java runtime seems to be looking for a class called "C:\Program Files (x86)\newlisp\guiserver.jar" rather than a file called "C:\Program Files (x86)\newlisp\guiserver.jar"

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