Re: [g-a-devel] Java-access-bridge INSTALL Discrepency

[Janina Sajka <janina rednote net>]

I promissed to report on default settings in Fedora. I have just
concluded a fresh install of Fedora Core 3. From the following it's
clear some user intervention will be required to get Java Access Bridge
wqorking. In particular, apropos our discussion the other day, one must
undo (or circumvent) gcj:

#which java
/usr/bin/java
[root concerto 18:07:20] ~#file /usr/bin/java
/usr/bin/java: symbolic link to `/etc/alternatives/java'
[root concerto 18:07:30] ~#file /etc/alternatives/java
/etc/alternatives/java: symbolic link to
`/usr/lib/jvm/jre-1.4.2-gcj/bin/java'
Padraig O'Briain writes:
> Janina,
> 
> I believe that the references to environment variables in the INSTALL
> file is shorthand.
> 
> I reinstalled my desktop system this morning and this is what I did to
> get accessibility working for Java applications.
> 
> Note that I do not have JAVA_HOME or JRE_HOME environment variables set.
> If I do `which java` I get /usr/bin/java. /usr/bin/java is a link to
> /usr/java/bin/java. /usr/java is a link to /usr/jdk/instances/jdk1.5.0.
> The GNOME files of interest, i.e. accessibility.properties and
> gnome-java-bridge.jar, are in /usr/share/jar/.
> 
> su -
> cd /usr/jdk/instances/jdk1.5.0/jre/lib
> ln -s /usr/share/jar/accessibility.properties .
> cd ext
> ln -s /usr/share/jar/gnome-java-bridge.jar .
> 
> Java applications will now load the java access bridge.
> 
> Padraig
> 
> Janina Sajka wrote:
> > I'm returning to this email and have expanded the cc's on the email
> > somewhat. I am trying to be thorough here because I author a HOWTO for
> > Linux users that's widely read by users who are blind or visually
> > impaired. So, please bear with my desire for clarity here:
> > 
> > Padraig O'Briain writes:
> > 
> >>
> >>Janina Sajka wrote:
> >>
> >>
> >>>Thanks, Padraig. Unfortunately, I see two typos in the new guidance
> >>>below--at least, I think they're typos:
> >>>
> >>>Padraig O'Briain writes:
> >>> 
> >>>
> >>>
> >>>>The text in the INSTALL file is wrong. I have updated it in CVS . I have
> >>>>attached the new version to this mail.
> >>>>
> >>>>   
> >>>>
> >>>
> >>>... snip snip ...
> >>> 
> >>>
> >>>
> >>>>You may optionally include a java_home environment variable:
> >>>>
> >>>>	./autogen.sh --prefix=/opt/gnome-2.0 --with-java-home=/usr/java/j2sdk1.4.0
> >>>>
> >>>>(2a) If you obtained the java-access-bridge via a tarfile,
> >>>>run "./configure" in this directory with options as above.
> >>>>
> >>>>(3) run make to build gnome-java-access.tar.  You will need 
> >>>>a Java Virtual Machine version 1.4.0 beta4 or higher.  
> >>>>
> >>>>(4) run make install. 
> >>>>
> >>>>(5) before running a Java program with the Java Access Bridge, you
> >>>>will need to make sure that your GNOME 2 installation enables
> >>>>CORBA traffic over IP from the ORBit2 ORB.  Do this by including
> >>>>the following line in a file, ".orbitrc" in your home directory:
> >>>>
> >>>>ORBIIOPIPv4=1
> >>>>
> >>>>You also need to modify your Java runtime environment to include
> >>>>gnome-java-bridge.jar in $JRE_HOME/lib/ext  and accessibility.properties 
> >>>>in $JRE_HOME/lib.  The best way to do this is to create a symbolic links from 
> >>>>   
> >>>>
> >>>
> >>>1.)	Did you mean to write "$JAVA_HOME" where you have "$JRE_HOME?"
> >>>
> >>
> >>No. According to README $JRE_HOMEis normally $JAVA_HOME/jre.
> >>
> > 
> > OK. But is this a requirement on the running system? Is
> > java-access-bridge looking for an environment variable $JRE_HOME? Or is
> > it sufficient to provide $JAVA_HOME as most documentation seems to
> > suggest?
> > 
> > Also, if $JRE_HOME is only referenced by the README for
> > java-access-bridge, isn't it clearer to repeat how $JRE_HOME is derived
> > in the INSTALL file as well? After all, the point is to support users,
> > not to test thorough research skills, correct?
> > 
> > 				Janina
> >  
> > 
> > 
> >>>2.)	I think you mean "create symbolic links," and not "create a symbolic
> >>>links?"
> >>>
> >>
> >>Yes.
> >>
> >>
> >>>				Janina
> >>>
> >>> 
> >>>
> > 
> > 
> 
> 
> _______________________________________________
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> Gnome-accessibility-devel gnome org
> http://mail.gnome.org/mailman/listinfo/gnome-accessibility-devel

-- 
	
				Janina Sajka, Chair
				Accessibility Workgroup
				Free Standards Group (FSG)

janina freestandards org	Phone: +1 202.494.7040