Connector

i am new to max/msp/jitter and i am trying to create a mxj external but it doesent really works.. i use max/msp version 4.6.3 jitter 1.6.3 and java 1.6.0_02-b06.. max window says Jitter java support installed.. no error message nothing.. but if i try to write a java class there it writes error: Could not load class xyz... can anybody give me a hint what could be wrong.. i've searched the forums but i did not find anything about that..

could-not-load-class

thanks for reply... but i have already tried to modify my max.java.config.txt and i have tried to copy the class file into C:Program FilesCycling '74MaxMSP

thanks for reply... but i have already tried to modify my max.java.config.txt and i have tried to copy the class file into C:Program FilesCycling '74MaxMSP
4.6Cycling '74javaclasses ...


sorry for my late answer... yes i am on win and some classes load well for example the mxj classpath class loads well and it works without problems.. but if i try to write my own class with the mxj quickie object for example a class named firsttime it don't work.. but there is also no .class file which should be created automatically... or not? there is only the .java file in the ...Cycling'74javaclasses directory.. On the other side i have tried to use Eclipse for developing my java class.. i have a bin and a src folder in my project and i have made an entry to the bin folder in my max.java.config.txt ... Maybe you gave me the answer for my problem already and i only misunderstood it.. you said:

"Your class has to be in the Java search path. By default, this is here

on Windows (don't know for Mac) : C:Program FilesCycling '74MaxMSP

do i have to tell java or windows to look at this directory? if yes how do i do it??

"Your class has to be in the Java search path. By default, this is here
on Windows (don't know for Mac) : C:Program FilesCycling '74MaxMSP
4.6Cycling '74javaclasses" 

do i have to tell java or windows to look at this directory? if yes how do i do it??


could anybody give me a hint? would be fine..

Alright... i think the first problem was that i had some troubles with my jdk installation so i tried updating my jdk to the latest version... i don't know exactly what was wrong.. but now the Class was found if i copy it to the classes folder in Cycling74 directory but there was another reason why i got the could not load class error.. i had made a package in eclipse and there was my class file.. if i copy the class file to default package it works.. is there a way to say max to search all sub directorys in my bin folder to search for classes?

thanks a lot for your replys.. but i don't really understand your last post.. can you explain it a bit more extensive please..

maybe i hadn't explained good enough, what i want to do do.. so i write it down once again:

i'm using Eclipse for developing javaexternals..

my Project (PimpDaMXJ) in Eclipse has a bin folder which i have referenced at the max.java.config.txt file with:

max.dynamic.class.dir F:/development/PimpDaMXJ/bin/;

and i have a class in a package net.pimpdahood.mxj.max.ClassName in my project. So how can i define in the max.java.config.txt file that max should search for all classes in the subdirectorys of the defined dir?? or is it impossible to do that.. The Reason why i wan't to do that is.. if i have much more packages i don't want to make an max.dynamic.class.dir entry like F:/development/PimpDaMXJ/bin/net/pimpdahood/mxj/max/ for each package i'am using.. so it would be fine to tell max it also look inside subfolders of the defined path..

i'm using Eclipse for developing javaexternals..
my Project (PimpDaMXJ) in Eclipse has a bin folder which i have referenced at the max.java.config.txt file with:
max.dynamic.class.dir F:/development/PimpDaMXJ/bin/;
and i have a class in a package net.pimpdahood.mxj.max.ClassName in my project. So how can i define in the max.java.config.txt file that max should search for all classes in the subdirectorys of the defined dir?? or is it impossible to do that.. The Reason why i wan't to do that is.. if i have much more packages i don't want to make an max.dynamic.class.dir entry like F:/development/PimpDaMXJ/bin/net/pimpdahood/mxj/max/ for each package i'am using.. so it would be fine to tell max it also look inside subfolders of the defined path.. 

On 25 Sep 2007, at 18:58, Christian Veit wrote:

> my Project (PimpDaMXJ) in Eclipse has a bin folder which i have 

> referenced at the max.java.config.txt file with:

> max.dynamic.class.dir F:/development/PimpDaMXJ/bin/;

> and i have a class in a package net.pimpdahood.mxj.max.ClassName in 

Fine: everything you're doing is right, as far as I can tell.

With your setup, you should be able to create an object

    [mxj net.pimpdahood.mxj.max.ClassName]

What you're *wanting* to do is lose the package prefix from the class 

name, and as far as I know there's no way to do this: pointing into a 

class file directory is not going to work, since it'll violate the 

package heirarchy. Since MXJ doesn't have any kind of "import" 

construct, your only choices are (i) stick with the full package 

names in the MXJ objects (which is what I do: I quite like them being 

explicit and compartmentalised) or (ii) create your top-level MXJ 

objects without packages (which I think is rather a bad idea since 

it'll lead to the kind of namespace pollution currently suffered by 

the rest of the Max world). As a compromise, use a shorter package 

nick rothwell -- composition, systems, performance -- 

> my Project (PimpDaMXJ) in Eclipse has a bin folder which i have  
> referenced at the max.java.config.txt file with:
> max.dynamic.class.dir F:/development/PimpDaMXJ/bin/;
> and i have a class in a package net.pimpdahood.mxj.max.ClassName in  
> my project.

What you're *wanting* to do is lose the package prefix from the class  
name, and as far as I know there's no way to do this: pointing into a  
class file directory is not going to work, since it'll violate the  
package heirarchy. Since MXJ doesn't have any kind of "import"  
construct, your only choices are (i) stick with the full package  
names in the MXJ objects (which is what I do: I quite like them being  
explicit and compartmentalised) or (ii) create your top-level MXJ  
objects without packages (which I think is rather a bad idea since  
it'll lead to the kind of namespace pollution currently suffered by  
the rest of the Max world). As a compromise, use a shorter package  
path for the actual MXJ wrappers.

   nick rothwell -- composition, systems, performance -- http:// 
www.cassiel.com


oh big thanks.. with full qualified package names it works fine..

could not load class ...