[Java] Development Kit Issues
Michael Yep
myep at remotelink.com
Mon Mar 27 12:26:22 UTC 2006
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
> fedora-list at redhat.com <mailto:fedora-list at redhat.com>
> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
> <https://www.redhat.com/mailman/listinfo/fedora-list>
>
>
>
>
> --
> 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
More information about the fedora-list
mailing list