🚀 go-pugleaf

On 3/21/2004 at 2:00:01 AM, George wrote:

> I build the project in JBuilder.  Then from a DOS window I run 
> the rmic on WeatherServer.class to generate the stub and skeletons 
> (I don't see a way to do this in JBuilder X Foundation).  These two
> files go to C:\ATest\classes\test  (i.e same directory as all other
> classes in project).  I then start the RMIRegistry from Tools |
> RMIRegistry  in JBuilder.  I then run WeatherServer from JBuilder
> using a runtime configuration set up with a policy file that grants
> the required socket permissions (connect and accept).
> 
> At this point I get the following error:
> 
> RemoteException occurred in server thread; nested exception is:
>  java.rmi.UnmarshalException: error unmarshalling arguments; nested
> exception is:
>  java.lang.ClassNotFoundException: test.WeatherServer_Stub

One possibility is that the stub and skeleton class files are being
deleted before the program runs.  The default is to to a build before
running the program and the default for the build setup is to delete
files from the output path that are not created by the build.

If that is the case, you could change this several different ways:

1) You can modify the run configuration to not perform a build before
running by changing the "Build Target" to <None>.

2) You can modify the build settings so that JBuilder will not delete
files from the output path.  This is controlled under the Project
Properties dialog box under Build | Java.  Uncheck the "Synchronize
output dir" checkbox.

3) You can create an Ant script to run rmic and integrate that into the
build process, in the post-compile phase.  Based on the JBuilder
feature matrix, I am pretty sure this should work in Foundation, but I
am not sure about that.

-- 
Regards,

John McGrath [TeamB]

---------------------------------------------------
Before sending me e-mail, please read:
    http://www.JPMcGrath.net/newsgroups/e-mail.html

Perhaps this isn't a case, but anyway: don't forget about
"java.rmi.server.codebase" ...

Petar


"George" <geo@geo1.com> wrote in message
news:405d1169@newsgroups.borland.com...
> I just started learning Java RMI and am having a problem getting my first
> server up and running.
>
> I am using JBuilder X Foundation on Win 98.  I have a project called Test
> located at C:\ATest.  There are 3 source files in a package called test
> located at C:\ATest\src\test.  The class files go to
C:\ATest\classes\test.
> The 3 source files are WeatherIntf.java  (the remote interface),
> WeatherServer.java (the server program), and RMIdemo.java (the client
> program).  (Yes, this is the example program from Peter van der Linden's
> book Just Java.)
>
> I build the project in JBuilder.  Then from a DOS window I run the rmic on
> WeatherServer.class to generate the stub and skeletons (I don't see a way
to
> do this in JBuilder X Foundation).  These two files go to
> C:\ATest\classes\test  (i.e same directory as all other classes in
project).
> I then start the RMIRegistry from Tools | RMIRegistry  in JBuilder.  I
then
> run WeatherServer from JBuilder using a runtime configuration set up with
a
> policy file that grants the required socket permissions (connect and
> accept).
>
> At this point I get the following error:
>
> RemoteException occurred in server thread; nested exception is:
>  java.rmi.UnmarshalException: error unmarshalling arguments; nested
> exception is:
>  java.lang.ClassNotFoundException: test.WeatherServer_Stub
>
> In the output window in JBuilder I also see the following fragment along
> with a list of other paths:
> C:\JBUILDERX\JDK1.4\bin\javaw -classpath "C:\ATest\classes;".......
>
> Since C:\ATest\classes is in the class path, I don't understand why
> test.WeatherServer_Stub cannot be found.  It is in the very same
directory.
>
> Any help would be greatly appreciated.
> Thanks
> George
>
>

Whoa Petar,

I just logged on to post that I had found what the problem was and here I
see your post!

Even after making sure (as John McGrath suggested) that the stub was not
getting erased when I started the server, I found the same problem.  After
some stumbling around in the documentation, I got it to work.

Yes the "problem" is indeed that you have to
pass -Djava.rmi.server.codebase=file:///ATest/classes/  to the VM.  So you
have to set this in the runtime configuration as one of the parameters to be
passed.  Of course the path I am setting in codebase is already in the
classpath that JBuilder is passing to javaw.  So I don't quite understand
what's going on.  Maybe somebody can explain.

Just a note of documentation
regarding -Djava.rmi.server.codebase=file:///ATest/classes/
Three slashes are required after file: on Windows (well at least 98!); (2
slashes wont work);  also the slash after classes is required!

Also, I was wrong when I said in my last post that I don't see a way to
generate stubs from the IDE in JBuilder X Foundation.  Well as it turns out
you can right click the file in the Project pane and from the Properties
menu item indicate that you want rmi stub to be generated.

Thank you guys for the help.
George


"Petar Banicevic" <petar2@kupi.biz> wrote in message
news:4065f86c@newsgroups.borland.com...
> Perhaps this isn't a case, but anyway: don't forget about
> "java.rmi.server.codebase" ...
>
> Petar
>
>
> "George" <geo@geo1.com> wrote in message
> news:405d1169@newsgroups.borland.com...
> > I just started learning Java RMI and am having a problem getting my
first
> > server up and running.
> >
> > I am using JBuilder X Foundation on Win 98.  I have a project called
Test
> > located at C:\ATest.  There are 3 source files in a package called test
> > located at C:\ATest\src\test.  The class files go to
> C:\ATest\classes\test.
> > The 3 source files are WeatherIntf.java  (the remote interface),
> > WeatherServer.java (the server program), and RMIdemo.java (the client
> > program).  (Yes, this is the example program from Peter van der Linden's
> > book Just Java.)
> >
> > I build the project in JBuilder.  Then from a DOS window I run the rmic
on
> > WeatherServer.class to generate the stub and skeletons (I don't see a
way
> to
> > do this in JBuilder X Foundation).  These two files go to
> > C:\ATest\classes\test  (i.e same directory as all other classes in
> project).
> > I then start the RMIRegistry from Tools | RMIRegistry  in JBuilder.  I
> then
> > run WeatherServer from JBuilder using a runtime configuration set up
with
> a
> > policy file that grants the required socket permissions (connect and
> > accept).
> >
> > At this point I get the following error:
> >
> > RemoteException occurred in server thread; nested exception is:
> >  java.rmi.UnmarshalException: error unmarshalling arguments; nested
> > exception is:
> >  java.lang.ClassNotFoundException: test.WeatherServer_Stub
> >
> > In the output window in JBuilder I also see the following fragment along
> > with a list of other paths:
> > C:\JBUILDERX\JDK1.4\bin\javaw -classpath "C:\ATest\classes;".......
> >
> > Since C:\ATest\classes is in the class path, I don't understand why
> > test.WeatherServer_Stub cannot be found.  It is in the very same
> directory.
> >
> > Any help would be greatly appreciated.
> > Thanks
> > George
> >
> >
>
>

On Wed, 31 Mar 2004 03:32:57 -0800, George wrote:

> Of course the path I am setting in codebase is already in the
> classpath that JBuilder is passing to javaw.  So I don't quite understand
> what's going on.  Maybe somebody can explain.

AFAIK, the RMI codebase can be remote, so in many real life deployments in
wouldn't and couldn't appear on the classpath. 

There are probably some security implications to making it an explicit VM
parameter as well. 


-- 
Owen

I am not good in explaining things, however, if you need more help send me a
mail to petar.banicevic@siemens.com.nospam (I can't use newsgroups from the
office) and I can give you an examples of RMI server, options and security
file ... etc...  (remove nospam).

P.

PS: please don't send attachments to mail unless they are zipped with a
password or rarred (with or without) a password.

"George" <geo@geo1.com> wrote in message
news:406a8078@newsgroups.borland.com...
> Whoa Petar,
>
> I just logged on to post that I had found what the problem was and here I
> see your post!
>
> Even after making sure (as John McGrath suggested) that the stub was not
> getting erased when I started the server, I found the same problem.  After
> some stumbling around in the documentation, I got it to work.
>
> Yes the "problem" is indeed that you have to
> pass -Djava.rmi.server.codebase=file:///ATest/classes/  to the VM.  So you
> have to set this in the runtime configuration as one of the parameters to
be
> passed.  Of course the path I am setting in codebase is already in the
> classpath that JBuilder is passing to javaw.  So I don't quite understand
> what's going on.  Maybe somebody can explain.
>
> Just a note of documentation
> regarding -Djava.rmi.server.codebase=file:///ATest/classes/
> Three slashes are required after file: on Windows (well at least 98!); (2
> slashes wont work);  also the slash after classes is required!
>
> Also, I was wrong when I said in my last post that I don't see a way to
> generate stubs from the IDE in JBuilder X Foundation.  Well as it turns
out
> you can right click the file in the Project pane and from the Properties
> menu item indicate that you want rmi stub to be generated.
>
> Thank you guys for the help.
> George
>
>
> "Petar Banicevic" <petar2@kupi.biz> wrote in message
> news:4065f86c@newsgroups.borland.com...
> > Perhaps this isn't a case, but anyway: don't forget about
> > "java.rmi.server.codebase" ...
> >
> > Petar
> >
> >
> > "George" <geo@geo1.com> wrote in message
> > news:405d1169@newsgroups.borland.com...
> > > I just started learning Java RMI and am having a problem getting my
> first
> > > server up and running.
> > >
> > > I am using JBuilder X Foundation on Win 98.  I have a project called
> Test
> > > located at C:\ATest.  There are 3 source files in a package called
test
> > > located at C:\ATest\src\test.  The class files go to
> > C:\ATest\classes\test.
> > > The 3 source files are WeatherIntf.java  (the remote interface),
> > > WeatherServer.java (the server program), and RMIdemo.java (the client
> > > program).  (Yes, this is the example program from Peter van der
Linden's
> > > book Just Java.)
> > >
> > > I build the project in JBuilder.  Then from a DOS window I run the
rmic
> on
> > > WeatherServer.class to generate the stub and skeletons (I don't see a
> way
> > to
> > > do this in JBuilder X Foundation).  These two files go to
> > > C:\ATest\classes\test  (i.e same directory as all other classes in
> > project).
> > > I then start the RMIRegistry from Tools | RMIRegistry  in JBuilder.  I
> > then
> > > run WeatherServer from JBuilder using a runtime configuration set up
> with
> > a
> > > policy file that grants the required socket permissions (connect and
> > > accept).
> > >
> > > At this point I get the following error:
> > >
> > > RemoteException occurred in server thread; nested exception is:
> > >  java.rmi.UnmarshalException: error unmarshalling arguments; nested
> > > exception is:
> > >  java.lang.ClassNotFoundException: test.WeatherServer_Stub
> > >
> > > In the output window in JBuilder I also see the following fragment
along
> > > with a list of other paths:
> > > C:\JBUILDERX\JDK1.4\bin\javaw -classpath "C:\ATest\classes;".......
> > >
> > > Since C:\ATest\classes is in the class path, I don't understand why
> > > test.WeatherServer_Stub cannot be found.  It is in the very same
> > directory.
> > >
> > > Any help would be greatly appreciated.
> > > Thanks
> > > George
> > >
> > >
> >
> >
>
>