[Java] Development Kit Issues

Ali Helmy alihelmy at gmail.com
Mon Mar 27 15:33:43 UTC 2006


ok, so i exported the path with
export JAVA_HOME=/home/ahelmy/jdk1.5.0

then i checked which jar, it said
/usr/bin/jar which is a link that points to /usr/java/jdk1.5/bin/jar which
is the correct path

so then i remade the file using jar -cf, but the bloody bastard (MANIFEST.mf)
still says Created-By: 0.92-gcc

WTF should i do now?

On 27/03/06, Kazimieras Vaina <kazimieras.vaina at gmail.com> wrote:
>
> I did some searching and found that java-1.4.2-gcj-compat-devel contains
> jar program. You may check if it's installed and remove it.
> You can update the PATH as well, if You have exported JAVA_HOME
> previously:
> export PATH=$PATH:$JAVA_HOME/bin
>
> hope that helps
>
> On Mon, 2006-03-27 at 06:26 -0600, Michael Yep wrote:
> > 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 at gmail.com
> > > <mailto:kazimieras.vaina at 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 at gmail.com
> > >     <mailto:klaasjan at gmail.com>
> > >     > > <mailto: klaasjan at gmail.com <mailto:klaasjan at gmail.com>>>
> wrote:
> > >     > >
> > >     > >
> > >     > >
> > >     > >     On 3/26/06, *Ali Helmy* < alihelmy at gmail.com
> > >     <mailto:alihelmy at gmail.com>
> > >     > >     <mailto:alihelmy at gmail.com <mailto:alihelmy at 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 at 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 at redhat.com <mailto:fedora-list at redhat.com>
> > >     <mailto:fedora-list at redhat.com <mailto:fedora-list at 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
> > >     >
> > >
> > >     --
> > >     fedora-list mailing list
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> https://www.redhat.com/mailman/listinfo/fedora-list
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> > >
> > >
> > >
> > >
> > > --
> > > A. Helmy
> > >
> >
> > --
> > Michael Yep
> > Development / Technical Operations
> > RemoteLink, Inc.
> > (630) 983-0072 x164
> >
> > GPG Public Key
> > http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x126439D9
> >
>
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>



--
A. Helmy
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