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Re: [Java] Development Kit Issues



As far as the java instalation goes, what i did was unpacked the zip
from sun, and then you just need to type
export JAVA_HOME=/home/username/jdk1.5.0
its been working great for me since FC1

Ali Helmy wrote:
> The fedora solved project talks about how to make the JRE the default
> run time environment... I already did that, by replacing the link for
> the java command in gcj by a link to the java command in the jdk folder...
> 
> However, that isn't my problem... my problem is that the JDK jar
> program, creates MANIFEST files usinf gcc... i don't know how the jar
> program does that, and i dont know which file is used to create MANIFEST
> files... i think it is an old link in the /usr/bin directory or some
> other old link that i have to replace from pointing at the gcc folder to
> the jdk folder...
> 
> Anyone know what files, libs or programs jar uses to create jar files?
> 
> On 27/03/06, *Kazimieras Vaina* < kazimieras vaina gmail com
> <mailto:kazimieras vaina gmail com>> wrote:
> 
>     Hi,
> 
>     There is also /usr/sbin/alternatives command to solve Sun jdk and gcj
>     conflicts.
>     At http://fedorasolved.org/browser-solutions/sun-java-installation
>     You may find some hints how to use the alternatives command.
> 
>     On Sun, 2006-03-26 at 20:26 -0500, Dan wrote:
>     > Ali Helmy wrote:
>     > > Hey mate,
>     > >
>     > > Thanks for the information... i tried your suggestion about the
>     > > BufferedReader and it worked... however:
>     > >
>     > > Possibly there's still some gcj toolset stuff left. If you want to
>     > > solve this clean, check out the jpackage.org
>     <http://jpackage.org> < http://jpackage.org/>
>     > > site and download the rpm building package. It allows you to
>     create an
>     > > rpm file for the jdk which is compatible with "alternatives". This
>     > > way, you can switch the system JRE between gcj and the Sun JDK (and
>     > > others).
>     > >
>     > > umm, can you provide more detailed info?
>     > >
>     > > On 26/03/06, *Klaasjan Brand* < klaasjan gmail com
>     <mailto:klaasjan gmail com>
>     > > <mailto: klaasjan gmail com <mailto:klaasjan gmail com>>> wrote:
>     > >
>     > >
>     > >
>     > >     On 3/26/06, *Ali Helmy* < alihelmy gmail com
>     <mailto:alihelmy gmail com>
>     > >     <mailto:alihelmy gmail com <mailto:alihelmy gmail com>>> wrote:
>     > >
>     > >         Hey mates,
>     > >
>     > >         I need to inquire about two issues in particular regarding
>     > >         JDK... Firstly, so that you can understand my background:
>     > >
>     > >         - I'm running FedoraCore 5
>     > >         - In the FC installation, I installed the regular Java
>     > >         Development libs & tools (such as eclipse, gcj, ...etc)
>     > >         - I downloaded and installed the JDK1.5 and the JVM from Sun
>     > >         Microsystems, Inc.
>     > >         - I removed all the java related bins in the /usr/bin
>     folder,
>     > >         then recreated the links to the new bins in the
>     > >         /usr/java/jdk1.4.0/bin library to make the javac, java, jar,
>     > >         javah... etc commands use the new JDK
>     > >
>     > >
>     > >         Now here's my problems:
>     > >
>     > >         A) When i create a jar file (ex: jar -cf Anyfile.jar
>     > >         Anyclass.class), the manifest file created with it
>     > >         (META-INF/MANIFEST) lists:
>     > >         Manifest-Version: 1.0
>     > >         Created-By: 0.92-gcc
>     > >         where you see, that my problem is that the manifest file was
>     > >         created by "gcc" apparently, and not 1.5.0_01 (Sun
>     > >         Microsystems Inc.) which should have been the case...
>     so, how
>     > >         can i change the manifest file maker?
>     > >
>     > >
>     > >     Possibly there's still some gcj toolset stuff left. If you
>     want to
>     > >     solve this clean, check out the jpackage.org
>     <http://jpackage.org> <http://jpackage.org>
>     > >     site and download the rpm building package. It allows you to
>     > >     create an rpm file for the jdk which is compatible with
>     > >     "alternatives". This way, you can switch the system JRE between
>     > >     gcj and the Sun JDK (and others).
>     > >
>     > >
>     > >         And the Note I Get after compiling with (javac
>     > >         -Xlint:deprecation ...etc):
>     > >         [ahelmy Laptop Java]$ javac -Xlint:deprecation
>     > >         ReadingFromConsole.java
>     > >         ReadingFromConsole.java:12: warning: [deprecation]
>     readLine()
>     > >         in java.io.DataInputStream has been deprecated
>     > >                                 UsrInput = IStream.readLine();
>     > >
>     > >         So, does anyone know a replacement to read directly a
>     line of
>     > >         user input from the ( System.in <http://System.in>
>     <http://System.in>) through a
>     > >         console? Because .readline( ) was the one listed in the API
>     > >
>     > >
>     > >     It's in the API documentation:
>     > >    
>     http://java.sun.com/j2se/1.4.2/docs/api/java/io/DataInputStream.html#readLine()
>     <http://java.sun.com/j2se/1.4.2/docs/api/java/io/DataInputStream.html#readLine()>
>     > >    
>     <http://java.sun.com/j2se/1.4.2/docs/api/java/io/DataInputStream.html#readLine%28%29>
>     > >
>     > >     Wrap the InputStream in a BufferedReader and you'll get rid
>     of the
>     > >     deprecation (and gain compatibility with different character
>     sets).
>     > >
>     > >     Klaasjan
>     > >
>     > >
>     > >     --
>     > >     fedora-list mailing list
>     > >     fedora-list redhat com <mailto:fedora-list redhat com>
>     <mailto:fedora-list redhat com <mailto:fedora-list redhat com>>
>     > >     To unsubscribe:
>     https://www.redhat.com/mailman/listinfo/fedora-list
>     > >
>     > >
>     > >
>     > >
>     > > --
>     > > A. Helmy
>     > Check out the first and second replies of this post:
>     > http://www.fedorasolved.com/viewtopic.php?t=120
>     > It's for FC4, but the same thing works for FC5.
>     > -Dan
>     >
> 
>     --
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> 
> 
> 
> 
> -- 
> A. Helmy
> 

-- 
Michael Yep
Development / Technical Operations
RemoteLink, Inc.
(630) 983-0072 x164

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