calling external classes method from kawa

calling external classes method from kawa

[Damien MATTEI]

Hi,

all is in the title, i want to call external classes method from kawa, 
i have a kawa class from which i want to call a method of a java class compiled not in kawa but javac, i tried many way but the class and method is unknow at runtime and i got wrning at compilation:

the kawa class is ResultatGeneralFKawa.scm

with this inside:


(module-name "eu.oca.kawafunct.ResultatGeneralFKawa")

(require 'regex)

(define-simple-class ResultatGeneralFKawa ()

[code cut]

((work) ::int 

   (eu.oca.DataBase:helloStatic)

   0)

the java DataBase class has some method such as:


public class DataBase {

[code cut]

public static void helloStatic() {
	System.out.println("Sidonie : DataBase : helloStatic : Hello !");
    }

when compiling i have of course wrnings:

java -jar /usr/local/share/java/kawa-2.1.jar -C ResultatGeneralFKawa.scm
(compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase

the problem is that the documention say i can use -J option to pass java arguments such as defining classpath but it does not works:

kawa -J
Unrecognized option: -J
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

i tried to copy DataBase.class definition in same place as ResultatGeneralFKawa.scm or in eu/oca where is the module (originally the module is in NetBeansProjects/Sidonie/build/web/WEB-INF/classes/eu/oca/DataBase.class
but nothing worked....

just want to call method of an external classes in kawa? is it possible?

already read the doc: http://www.gnu.org/software/kawa/Method-operations.html

find no suitable solution...

errors is now at runtime:

Etat HTTP 500 - ResultatGeneralFKawa.scm:178:5: unbound location: eu.oca.DataBase

type Rapport d''exception

message ResultatGeneralFKawa.scm:178:5: unbound location: eu.oca.DataBase

description Le serveur a rencontré une erreur interne qui l''a empêché de satisfaire la requête.

exception

javax.servlet.ServletException: ResultatGeneralFKawa.scm:178:5: unbound location: eu.oca.DataBase
	org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:392)
	org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:382)
	org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:345)
	org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:220)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

cause mère

ResultatGeneralFKawa.scm:178:5: unbound location: eu.oca.DataBase
	gnu.mapping.SharedLocation.get(SharedLocation.java:22)
	gnu.mapping.DynamicLocation.get(DynamicLocation.java:28)
	eu.oca.kawafunct.ResultatGeneralFKawa.work(ResultatGeneralFKawa.scm:178)
	eu.oca.kawafunct.ResultatGeneralFKawa.<init>(ResultatGeneralFKawa.scm:120)
	eu.oca.ResultatGeneralF.postHandler(ResultatGeneralF.java:107)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:497)
	org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
	org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:151)
	org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:171)
	org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:195)
	org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:104)
	org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:402)
	org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:349)
	org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:106)
	org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:259)
	org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
	org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
	org.glassfish.jersey.internal.Errors.process(Errors.java:315)
	org.glassfish.jersey.internal.Errors.process(Errors.java:297)
	org.glassfish.jersey.internal.Errors.process(Errors.java:267)
	org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:318)
	org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:236)
	org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1010)
	org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:373)
	org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:382)
	org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:345)
	org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:220)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

note La trace complète de la cause mère de cette erreur est disponible dans les fichiers journaux de Apache Tomcat/8.0.27.
Apache Tomcat/8.0.27

Regards,

Damien

-- 
Damien.Mattei@unice.fr, Damien.Mattei@oca.eu, UNS / OCA / CNRS

Re: calling external classes method from kawa

[Per Bothner]

On 06/02/2016 07:12 AM, Damien MATTEI wrote:

> java -jar /usr/local/share/java/kawa-2.1.jar -C ResultatGeneralFKawa.scm
> (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase

Note that documentation for the java command says:

    When you use the -jar option, the specified JAR file is the source of all
    user classes, and other class path settings are ignored.

So you may need to use a -cp flag instead, and explicitly name kawa.repl :

java -cp /usr/local/share/java/kawa-2.1.jar:other.jar kawa.repl -C ResultatGeneralFKawa.scm

The Kawa command allows you to use a CLASSPATH enviornment variable.

The -jar option overrides the classpath.  Instead you

> the problem is that the documention say i can use -J option to pass java arguments such as defining classpath but it does not works:
>
> kawa -J
> Unrecognized option: -J
> Error: Could not create the Java Virtual Machine.
> Error: A fatal exception has occurred. Program will exit.

Huh?  A standalone -J makes no sense, since you didn' specify any options.
Instead, you can do:

   kawa -J-cp -Jmyclasses.jar

Note you have to use two -J's - one for each JVM option.

It might be easier to use a CLASSPATH environment variable.

-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/

Re: calling external classes method from kawa

[Damien MATTEI]

Le Thursday 02 June 2016 16:34:21 Per Bothner, vous avez écrit :
> 
> On 06/02/2016 07:12 AM, Damien MATTEI wrote:
> 
> > java -jar /usr/local/share/java/kawa-2.1.jar -C ResultatGeneralFKawa.scm
> > (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> > ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> > ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
> 
> Note that documentation for the java command says:
> 
>     When you use the -jar option, the specified JAR file is the source of all
>     user classes, and other class path settings are ignored.
> 
> So you may need to use a -cp flag instead, and explicitly name kawa.repl :
> 
> java -cp /usr/local/share/java/kawa-2.1.jar:other.jar kawa.repl -C ResultatGeneralFKawa.scm
> 
> The Kawa command allows you to use a CLASSPATH enviornment variable.
> 
> The -jar option overrides the classpath.  Instead you
> 
> > the problem is that the documention say i can use -J option to pass java arguments such as defining classpath but it does not works:
> >
> > kawa -J
> > Unrecognized option: -J
> > Error: Could not create the Java Virtual Machine.
> > Error: A fatal exception has occurred. Program will exit.
> 
> Huh?  A standalone -J makes no sense, since you didn' specify any options.

i do use options but it does not works:

kawa -J-cp -J~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes -C ResultatGeneralFKawa.scm
Unrecognized option: -J-cp
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

even the help in command line does not mention the -J option:
 kawa --help
Usage: [java kawa.repl | kawa] [options ...]

 Generic options:
 --help                        Show help about options
 --author                      Show author information
 --version                     Show version information

 Options
 -e <expr>                     Evaluate expression <expr>
 -c <expr>                     Same as -e, but make sure ~/.kawarc.scm is run first
 -f <filename>                 File to interpret
 -s| --                        Start reading commands interactively from console
 -w                            Launch the interpreter in a GUI window
 --server <port>               Start a server accepting telnet connections on <port>
 --debug-dump-zip              Compiled interactive expressions to a zip archive
 --debug-print-expr            Print generated internal expressions
 --debug-print-final-expr      Print expression after any optimizations
 --debug-error-prints-stack-trace Print stack trace with errors
 --debug-warning-prints-stack-trace Print stack trace with warnings
 --[no-]full-tailcalls         (Don't) use full tail-calls
 -C <filename> ...             Compile named files to Java class files
 --output-format <format>      Use <format> when printing top-level output
 --<language>                  Select source language, one of:
   scheme .scm .sc .sld [default]
   r5rs .scm 
   r6rs .scm 
   r7rs .scm 
   krl .krl 
   brl .brl 
   emacs elisp emacs-lisp .el 
   xquery .xquery .xq .xql 
   q2 .q2 
   xslt xsl .xsl 
   commonlisp common-lisp clisp lisp .lisp .lsp .cl 
 Compilation options, must be specified before -C
 -d <dirname>                  Directory to place .class files in
 -P <prefix>                   Prefix to prepand to class names
 -T <topname>                  name to give to top-level class
 --applet                      Generate an applet
 --servlet                     Generate a servlet
 --module-static               Top-level definitions are by default static
 --full-tailcalls              support full tailcalls
 --main                        generate an application, with a main method
 --warn-as-error               Make all warnings into errors
 --warn-invoke-unknown-method  warn if invoke calls an unknown method (subsumed by warn-unknown-member)
 --warn-undefined-variable     warn if no compiler-visible binding for a variable
 --warn-unknown-member         warn if referencing an unknown method or field
 --warn-unreachable            warn if this code can never be executed
 --warn-unused                 warn if a variable is usused or code never executed
 --warn-void-used              warn if void-valued expression is used

For more information go to:  http://www.gnu.org/software/kawa/


> Instead, you can do:
> 
>    kawa -J-cp -Jmyclasses.jar
> 
> Note you have to use two -J's - one for each JVM option.
> 
> It might be easier to use a CLASSPATH environment variable.
> 



-- 
Damien.Mattei@unice.fr, Damien.Mattei@oca.eu, UNS / OCA / CNRS

Re: calling external classes method from kawa

[Damien MATTEI]

Le Thursday 02 June 2016 16:34:21 Per Bothner, vous avez écrit :
> 
> On 06/02/2016 07:12 AM, Damien MATTEI wrote:
> 
> > java -jar /usr/local/share/java/kawa-2.1.jar -C ResultatGeneralFKawa.scm
> > (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> > ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> > ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
> 
> Note that documentation for the java command says:
> 
>     When you use the -jar option, the specified JAR file is the source of all
>     user classes, and other class path settings are ignored.
> 
> So you may need to use a -cp flag instead, and explicitly name kawa.repl :
> 
> java -cp /usr/local/share/java/kawa-2.1.jar:other.jar kawa.repl -C ResultatGeneralFKawa.scm
> 
> The Kawa command allows you to use a CLASSPATH enviornment variable.
> 
> The -jar option overrides the classpath.  Instead you
> 
> > the problem is that the documention say i can use -J option to pass java arguments such as defining classpath but it does not works:
> >
> > kawa -J
> > Unrecognized option: -J
> > Error: Could not create the Java Virtual Machine.
> > Error: A fatal exception has occurred. Program will exit.
> 
> Huh?  A standalone -J makes no sense, since you didn' specify any options.
> Instead, you can do:
> 
>    kawa -J-cp -Jmyclasses.jar
> 
> Note you have to use two -J's - one for each JVM option.
> 
> It might be easier to use a CLASSPATH environment variable.
> 

i tried a lot of things but still get the warnings:

[mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:other.jar kawa.repl -C ResultatGeneralFKawa.scm
(compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
[mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes kawa.repl -C ResultatGeneralFKawa.scm
(compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
[mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes/eu/oca kawa.repl -C ResultatGeneralFKawa.scm
(compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
[mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes/eu/oca/DataBase.class kawa.repl -C ResultatGeneralFKawa.scm
(compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
[mattei@moita Jkawa]$ locate Sidonie.war
/home/mattei/Sidonie.war
/home/mattei/NetBeansProjects/Sidonie/dist/Sidonie.war
/usr/local/apache-tomcat-8.0.27/webapps/Sidonie.war
[mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:/home/mattei/NetBeansProjects/Sidonie/dist/Sidonie.war kawa.repl -C ResultatGeneralFKawa.scm
(compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
[mattei@moita Jkawa]$ cd ~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes/
[mattei@moita classes]$ zd
total 0
drwxrwxr-x. 3 mattei mattei 15  2 juin  15:50 .
drwxrwxr-x. 4 mattei mattei 30  2 juin  15:50 ..
drwxrwxr-x. 3 mattei mattei 16  2 juin  15:50 eu
[mattei@moita classes]$ jar cf ~/Dropbox/Sidonie.jar eu[mattei@moita classes]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/Dropbox/Sidonie.jar kawa.repl -C ResultatGeneralFKawa.scm
java.io.FileNotFoundException: /home/mattei/NetBeansProjects/Sidonie/build/web/WEB-INF/classes/ResultatGeneralFKawa.scm (Aucun fichier ou dossier de ce type)
[mattei@moita classes]$ cd -
/home/mattei/Dropbox/Jkawa
[mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/Dropbox/Sidonie.jar kawa.repl -C ResultatGeneralFKawa.scm
(compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase

any idea?

if i can not do it in kawa, i will make it with bigloo as i have not this problem with it ,but i will keep trying again later...

regards,

damien

-- 
Damien.Mattei@unice.fr, Damien.Mattei@oca.eu, UNS / OCA / CNRS

Re: calling external classes method from kawa

[Per Bothner]

On 06/02/2016 08:06 AM, Damien MATTEI wrote:

> [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes kawa.repl -C ResultatGeneralFKawa.scm
> (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
> [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes/eu/oca kawa.repl -C ResultatGeneralFKawa.scm
> (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
> [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes/eu/oca/DataBase.class kawa.repl -C ResultatGeneralFKawa.scm
> (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase

I don't believe '~' would work for the home directory.
It is normally expanded by the shell - but only when it's the first character in a "word".

> [mattei@moita Jkawa]$ locate Sidonie.war
> /home/mattei/Sidonie.war
> /home/mattei/NetBeansProjects/Sidonie/dist/Sidonie.war
> /usr/local/apache-tomcat-8.0.27/webapps/Sidonie.war
> [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:/home/mattei/NetBeansProjects/Sidonie/dist/Sidonie.war kawa.repl -C ResultatGeneralFKawa.scm
> (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase

I don't believe a 'war' file can be used as if it were a 'jar' file.
It has a special layout, where classes are in WEB-INF/classes, which the JVM doesn't know about.
For that to work, you have to get a non-empty result from

jar tvf /home/mattei/NetBeansProjects/Sidonie/dist/Sidonie.war eu/oca/DataBase/helloStatic.class

> any idea?

Don't use '~' in paths.

> if i can not do it in kawa, i will make it with bigloo as i have not this problem with it ,but i will keep trying again later...

It's almost certainly not a Kawa bug.

-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/

Re: calling external classes method from kawa

[Damien MATTEI]

thanks you,

finally we got it:
[mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:/home/mattei/NetBeansProjects/Sidonie/build/web/WEB-INF/classes kawa.repl -C ResultatGeneralFKawa.scm
(compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)

no more warnings at compilation (will check the runtime later)

for info -J option seems unrecognized on my kawa version (compiled from sources) but that's not a problem as it compiles the other way:

[mattei@moita Jkawa]$ kawa -J-cp -J/home/mattei/NetBeansProjects/Sidonie/build/web/WEB-INF/classes -C ResultatGeneralFKawa.scm
Unrecognized option: -J-cp
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

Damien

Le Thursday 02 June 2016 18:20:26 Per Bothner, vous avez écrit :
> 
> On 06/02/2016 08:06 AM, Damien MATTEI wrote:
> 
> > [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes kawa.repl -C ResultatGeneralFKawa.scm
> > (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> > ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> > ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
> > [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes/eu/oca kawa.repl -C ResultatGeneralFKawa.scm
> > (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> > ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> > ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
> > [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes/eu/oca/DataBase.class kawa.repl -C ResultatGeneralFKawa.scm
> > (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> > ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> > ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
> 
> I don't believe '~' would work for the home directory.
> It is normally expanded by the shell - but only when it's the first character in a "word".
> 
> > [mattei@moita Jkawa]$ locate Sidonie.war
> > /home/mattei/Sidonie.war
> > /home/mattei/NetBeansProjects/Sidonie/dist/Sidonie.war
> > /usr/local/apache-tomcat-8.0.27/webapps/Sidonie.war
> > [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:/home/mattei/NetBeansProjects/Sidonie/dist/Sidonie.war kawa.repl -C ResultatGeneralFKawa.scm
> > (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> > ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> > ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
> 
> I don't believe a 'war' file can be used as if it were a 'jar' file.
> It has a special layout, where classes are in WEB-INF/classes, which the JVM doesn't know about.
> For that to work, you have to get a non-empty result from
> 
> jar tvf /home/mattei/NetBeansProjects/Sidonie/dist/Sidonie.war eu/oca/DataBase/helloStatic.class
> 
> > any idea?
> 
> Don't use '~' in paths.
> 
> > if i can not do it in kawa, i will make it with bigloo as i have not this problem with it ,but i will keep trying again later...
> 
> It's almost certainly not a Kawa bug.
> 



-- 
Damien.Mattei@unice.fr, Damien.Mattei@oca.eu, UNS / OCA / CNRS

Re: calling external classes method from kawa

[Damien MATTEI]

Great !!! it works at runtime too:
Sidonie : DataBase : helloStatic : Hello !
i can start doing serious things in kawa now, not only with bigloo....
i needed to access java ODBC written routines already uses with bigloo scheme
now i will be able to reuse them in kawa too...
regards,
damien

Le Friday 03 June 2016 10:18:33 Damien MATTEI, vous avez écrit :
> thanks you,
> 
> finally we got it:
> [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:/home/mattei/NetBeansProjects/Sidonie/build/web/WEB-INF/classes kawa.repl -C ResultatGeneralFKawa.scm
> (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> 
> no more warnings at compilation (will check the runtime later)
> 
> for info -J option seems unrecognized on my kawa version (compiled from sources) but that's not a problem as it compiles the other way:
> 
> [mattei@moita Jkawa]$ kawa -J-cp -J/home/mattei/NetBeansProjects/Sidonie/build/web/WEB-INF/classes -C ResultatGeneralFKawa.scm
> Unrecognized option: -J-cp
> Error: Could not create the Java Virtual Machine.
> Error: A fatal exception has occurred. Program will exit.
> 
> Damien
> 
> Le Thursday 02 June 2016 18:20:26 Per Bothner, vous avez écrit :
> > 
> > On 06/02/2016 08:06 AM, Damien MATTEI wrote:
> > 
> > > [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes kawa.repl -C ResultatGeneralFKawa.scm
> > > (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> > > ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> > > ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
> > > [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes/eu/oca kawa.repl -C ResultatGeneralFKawa.scm
> > > (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> > > ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> > > ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
> > > [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:~/NetBeansProjects/Sidonie/build/web/WEB-INF/classes/eu/oca/DataBase.class kawa.repl -C ResultatGeneralFKawa.scm
> > > (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> > > ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> > > ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
> > 
> > I don't believe '~' would work for the home directory.
> > It is normally expanded by the shell - but only when it's the first character in a "word".
> > 
> > > [mattei@moita Jkawa]$ locate Sidonie.war
> > > /home/mattei/Sidonie.war
> > > /home/mattei/NetBeansProjects/Sidonie/dist/Sidonie.war
> > > /usr/local/apache-tomcat-8.0.27/webapps/Sidonie.war
> > > [mattei@moita Jkawa]$ java -cp /usr/local/share/java/kawa-2.1.jar:/home/mattei/NetBeansProjects/Sidonie/dist/Sidonie.war kawa.repl -C ResultatGeneralFKawa.scm
> > > (compiling ResultatGeneralFKawa.scm to eu.oca.kawafunct.ResultatGeneralFKawa)
> > > ResultatGeneralFKawa.scm:178:5: warning - no known slot 'helloStatic' in java.lang.Object
> > > ResultatGeneralFKawa.scm:178:5: warning - no declaration seen for eu.oca.DataBase
> > 
> > I don't believe a 'war' file can be used as if it were a 'jar' file.
> > It has a special layout, where classes are in WEB-INF/classes, which the JVM doesn't know about.
> > For that to work, you have to get a non-empty result from
> > 
> > jar tvf /home/mattei/NetBeansProjects/Sidonie/dist/Sidonie.war eu/oca/DataBase/helloStatic.class
> > 
> > > any idea?
> > 
> > Don't use '~' in paths.
> > 
> > > if i can not do it in kawa, i will make it with bigloo as i have not this problem with it ,but i will keep trying again later...
> > 
> > It's almost certainly not a Kawa bug.
> > 
> 
> 
> 



-- 
Damien.Mattei@unice.fr, Damien.Mattei@oca.eu, UNS / OCA / CNRS

Re: calling external classes method from kawa

[Per Bothner]

On 06/03/2016 01:18 AM, Damien MATTEI wrote:  
> for info -J option seems unrecognized on my kawa version (compiled from sources) but that's not a problem as it compiles the other way:

That was a bug in the bin/kawa.sh.in shell script template.
I checked in a fix for this.  Please try it.
-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/

Re: calling external classes method from kawa

[Damien MATTEI]

Le Friday 03 June 2016 14:54:28 Per Bothner, vous avez écrit :
> 
> On 06/03/2016 01:18 AM, Damien MATTEI wrote:  
> > for info -J option seems unrecognized on my kawa version (compiled from sources) but that's not a problem as it compiles the other way:
> 
> That was a bug in the bin/kawa.sh.in shell script template.
> I checked in a fix for this.  Please try it.

i will test it as soon as possible or  the next time i install kawa from source on a computer or if i upgrade to a new version.
regards,
Damien

-- 
Damien.Mattei@unice.fr, Damien.Mattei@oca.eu, UNS / OCA / CNRS