Java use: problem with LaTeXDraw
Merciadri Luca
Hash: SHA1
Hello,
I wanted to use LaTeXDraw, which is a .jar file. Libs, etc., are
included in the good folders, but when I run
$ java -jar LaTeXDraw.jar, the loading screen of LaTeXDraw appears,
but, when the loading is finished, nothing but a mere window, with the
`LaTeXDraw' title appears. In the console, I receive dozens of
`Null peer?!'
I am using gij. Any idea? (Sorry, I am totally new with Java.)
Thanks.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Jeff Higgins
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hello,
>
> I wanted to use LaTeXDraw, which is a .jar file. Libs, etc., are
> included in the good folders, but when I run
> $ java -jar LaTeXDraw.jar, the loading screen of LaTeXDraw appears,
> but, when the loading is finished, nothing but a mere window, with the
> `LaTeXDraw' title appears. In the console, I receive dozens of
> `Null peer?!'
>
> I am using gij. Any idea? (Sorry, I am totally new with Java.)
>
> Thanks.
The LaTeXDraw help forum is located at:
<http://sourceforge.net/projects/latexdraw/forums/forum/525822>
Have you read and followed the installation directions in the
download zip file?
Lew
> I wanted to use LaTeXDraw, which is a .jar file. Libs, etc., are
> included in the good folders, but when I run
Libraries for "java -jar" have to be in directories outside the JAR you're
running, not inside the JAR. I assume that's what you mean by "the good folders".
> $ java -jar LaTeXDraw.jar, the loading screen of LaTeXDraw appears,
> but, when the loading is finished, nothing but a mere window, with the
> `LaTeXDraw' title appears. In the console, I receive dozens of
> `Null peer?!'
"Null peer", I find from googling the term, is a message from AWT that it
cannot create a window on the host OS. I find no reference to it so far more
recent that Java 1.1.8. (Java is currently at 1.6, a.k.a. "Java 6".) The
references I do find are to a bug in Java running under Windows, fixed in Java
1.1.8.
> I am using gij. Any idea? (Sorry, I am totally new with Java.)
I am not familiar with gij. What is that?
What version of Java are you using? What OS? What is the error message
(copied and pasted, not paraphrased)?
--
Lew
Merciadri Luca
Hash: SHA1
Jeff Higgins <oohi...@yahoo.com> writes:
> The LaTeXDraw help forum is located at:
> <http://sourceforge.net/projects/latexdraw/forums/forum/525822>
>
> Have you read and followed the installation directions in the
> download zip file?
For sure! I am going to check the forum.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Merciadri Luca
Hash: SHA1
Lew <no...@lewscanon.com> writes:
> Libraries for "java -jar" have to be in directories outside the JAR
> you're running, not inside the JAR. I assume that's what you mean by
> "the good folders".
Totally.
>> $ java -jar LaTeXDraw.jar, the loading screen of LaTeXDraw appears,
>> but, when the loading is finished, nothing but a mere window, with the
>> `LaTeXDraw' title appears. In the console, I receive dozens of
>> `Null peer?!'
>
> "Null peer", I find from googling the term, is a message from AWT that
> it cannot create a window on the host OS. I find no reference to it
> so far more recent that Java 1.1.8. (Java is currently at 1.6,
> a.k.a. "Java 6".) The references I do find are to a bug in Java
> running under Windows, fixed in Java 1.1.8.
I must have done the same googling, as I had the same results when I
looked on it.
>> I am using gij. Any idea? (Sorry, I am totally new with Java.)
>
> I am not familiar with gij. What is that?
GIJ is the GNU Interpreter for Java (it is a VM). If you want more
info on it, you may check http://gcc.gnu.org/java/.
> What version of Java are you using? What OS? What is the error
> message (copied and pasted, not paraphrased)?
$ java -version
java version "1.5.0"
gij (GNU libgcj) version 4.3.2
The error message is textually the one I posted on last message,
/i.e./ the `null peer' problem, with the ponctuation marks, as given
in my first message.
The problem is that this error message is not really explicit. Could
it be related with OpenGL or something like this?
I am under Debian Lenny, with kernel 2.6.26-2-686-bigmem.
Thanks for any answer.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Lew
> GIJ is the GNU Interpreter for Java (it is a VM). If you want more
> info on it, you may checkhttp://gcc.gnu.org/java/.
>
That's part of your problem right there. You should use a real Java.
> > What version of Java are you using? What OS? What is the error
> > message (copied and pasted, not paraphrased)?
>
> $ java -version
> java version "1.5.0"
> gij (GNU libgcj) version 4.3.2
>
Also, consider using Swing instead of AWT widgets.
--
Lew
Merciadri Luca
Hash: SHA1
Lew <l...@lewscanon.com> writes:
> That's part of your problem right there. You should use a real
> Java.
Mmhokay.
>> > What version of Java are you using? What OS? What is the error
>> > message (copied and pasted, not paraphrased)?
>>
>> $ java -version
>> java version "1.5.0"
>> gij (GNU libgcj) version 4.3.2
>>
>
> Also, consider using Swing instead of AWT widgets.
Okay.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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John B. Matthews
Merciadri Luca <Luca.Me...@student.ulg.ac.be> wrote:
> I am under Debian Lenny, with kernel 2.6.26-2-686-bigmem.
The LaTeXDraw site mentions requiring JRE 1.6:
<http://latexdraw.sourceforge.net/>
It appears to be available in sid:
<http://packages.debian.org/sid/default-jre>
--
John B. Matthews
trashgod at gmail dot com
<http://sites.google.com/site/drjohnbmatthews>
Merciadri Luca
Hash: SHA1
"John B. Matthews" <nos...@nospam.invalid> writes:
> In article <87eims8...@merciadriluca-station.MERCIADRILUCA>,
> Merciadri Luca <Luca.Me...@student.ulg.ac.be> wrote:
>
>> I am under Debian Lenny, with kernel 2.6.26-2-686-bigmem.
>
> The LaTeXDraw site mentions requiring JRE 1.6:
>
> <http://latexdraw.sourceforge.net/>
Okay.
> It appears to be available in sid:
>
> <http://packages.debian.org/sid/default-jre>
The problem is that I am running Lenny.
Any solution?
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Lew
>> It appears to be available in sid:
>>
>> <http://packages.debian.org/sid/default-jre>
Merciadri Luca wrote:
> The problem is that I am running Lenny.
>
> Any solution?
Is there some reason you can't just download it from java.sun.com?
<http://java.sun.com/javase/downloads/index.jsp>
--
Lew
John B. Matthews
wrote:
This is the best way to get particular, required version. It's been a
while, but I recall it being only slightly more involved that apt-get.
The Debian package for Lenny is a bit out of date, but it may serve
while you investigate options:
<http://packages.debian.org/lenny/sun-java6-jre>
Lew
> In article <hgjobd$sgl$1...@news.albasani.net>, Lew <no...@lewscanon.com>
> wrote:
>
>> John B. Matthews writes:
>>>> It appears to be available in sid:
>>>>
>>>> <http://packages.debian.org/sid/default-jre>
>> Merciadri Luca wrote:
>>> The problem is that I am running Lenny.
>>>
>>> Any solution?
>> Is there some reason you can't just download it from java.sun.com?
>> <http://java.sun.com/javase/downloads/index.jsp>
>
> This is the best way to get particular, required version. It's been a
> while, but I recall it being only slightly more involved that apt-get.
> The Debian package for Lenny is a bit out of date, but it may serve
> while you investigate options:
>
> <http://packages.debian.org/lenny/sun-java6-jre>
I use Ubuntu, which also is based on apt-get for package installation, but I
routinely use the java.sun.com link to download and install Java versions.
The .bin file expands itself into a subdirectory that you then plant where you
want it.
--
Lew
Merciadri Luca
Hash: SHA1
I encounter these messages:
error: Failed dependencies:
/bin/basename is needed by jre-1.6.0_17-fcs.i586
/bin/cat is needed by jre-1.6.0_17-fcs.i586
/bin/cp is needed by jre-1.6.0_17-fcs.i586
/bin/gawk is needed by jre-1.6.0_17-fcs.i586
/bin/grep is needed by jre-1.6.0_17-fcs.i586
/bin/ln is needed by jre-1.6.0_17-fcs.i586
/bin/ls is needed by jre-1.6.0_17-fcs.i586
/bin/mkdir is needed by jre-1.6.0_17-fcs.i586
/bin/mv is needed by jre-1.6.0_17-fcs.i586
/bin/pwd is needed by jre-1.6.0_17-fcs.i586
/bin/rm is needed by jre-1.6.0_17-fcs.i586
/bin/sed is needed by jre-1.6.0_17-fcs.i586
/bin/sort is needed by jre-1.6.0_17-fcs.i586
/bin/touch is needed by jre-1.6.0_17-fcs.i586
/usr/bin/cut is needed by jre-1.6.0_17-fcs.i586
/usr/bin/dirname is needed by jre-1.6.0_17-fcs.i586
/usr/bin/expr is needed by jre-1.6.0_17-fcs.i586
/usr/bin/find is needed by jre-1.6.0_17-fcs.i586
/usr/bin/tail is needed by jre-1.6.0_17-fcs.i586
/usr/bin/tr is needed by jre-1.6.0_17-fcs.i586
/usr/bin/wc is needed by jre-1.6.0_17-fcs.i586
/bin/sh is needed by jre-1.6.0_17-fcs.i586
Done.
Normal?
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Merciadri Luca
Hash: SHA1
Merciadri Luca <Luca.Me...@student.ulg.ac.be> writes:
At the installation of the *rpm.bin, evidently. I was su, and it seems
that it cannot find the basic binary utilities. However, the output
.rpm is 47.8 MB, and is thus not empty...
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Lew
>> I encounter these messages:
After what command?
Nope.
> At the installation of the *rpm.bin, evidently. I was su, and it seems
I thought Debian didn't use RPMs. Anyway, sometimes when you "su" you lose
PATH information and other envars due to not picking profiles and other .*rc
files.
> that it cannot find the basic binary utilities. However, the output
> .rpm is 47.8 MB, and is thus not empty...
Using Ubuntu, which, like Debian, uses APT for package management, I don't
download the RPM but the other Linux installation file that is not RPM based.
It's essentially a self-extracting compressed file in a .bin file which
expands to a Java directory tree. I then copy the tree to wherever I put Java
directory trees (under /opt/java/, in my case). I'm pretty sure RPMs don't
work in Ubuntu, but maybe Debian is different.
The Java installed by the Ubuntu APT mechanism is OpenJDK version 6 and it
seems pretty stable and complete.
--
Lew
Lew
>> At the installation of the *rpm.bin, evidently. I was su, and it seems
Lew wrote:
> Using Ubuntu, which, like Debian, uses APT for package management, I
> don't download the RPM but the other Linux installation file that is not
> RPM based. It's essentially a self-extracting compressed file in a .bin
> file which expands to a Java directory tree. I then copy the tree to
> wherever I put Java directory trees (under /opt/java/, in my case).
Oh, and I don't "su" (actually, I don't "sudo") to do the .bin extraction, and
I don't install the Java directories with root as the owner. I've defined a
normal-privileged user (with a primary group for it) that isn't allowed to log
in whose purpose is to own such things.
--
Lew
Jeff Higgins
> "John B. Matthews" <nos...@nospam.invalid> writes:
>
>> In article <87eims8...@merciadriluca-station.MERCIADRILUCA>,
>> Merciadri Luca <Luca.Me...@student.ulg.ac.be> wrote:
>>
>>> I am under Debian Lenny, with kernel 2.6.26-2-686-bigmem.
>> The LaTeXDraw site mentions requiring JRE 1.6:
>>
>> <http://latexdraw.sourceforge.net/>
> Okay.
>
>> It appears to be available in sid:
>>
>> <http://packages.debian.org/sid/default-jre>
> The problem is that I am running Lenny.
>
> Any solution?
A web search using the terms: debian lenny sun java
seems to reveal considerable installation angst.
It also provides a link to a fairly active debian-java mailing list:
<http://lists.debian.org/debian-java/>
Merciadri Luca
Hash: SHA1
Lew <no...@lewscanon.com> writes:
I thought too, but it was, for me, possible to install a RPM into
Debian, even if it stands for `Red Hat Package Manager.'
>
>> that it cannot find the basic binary utilities. However, the output
>> .rpm is 47.8 MB, and is thus not empty...
>
> Using Ubuntu, which, like Debian, uses APT for package management, I
> don't download the RPM but the other Linux installation file that is
> not RPM based. It's essentially a self-extracting compressed file in a
> .bin file which expands to a Java directory tree. I then copy the
> tree to wherever I put Java directory trees (under /opt/java/, in my
> case). I'm pretty sure RPMs don't work in Ubuntu, but maybe Debian is
> different.
Okay, I did it (with the non-rpm .bin), moved everything into /opt/java/.
>
> The Java installed by the Ubuntu APT mechanism is OpenJDK version 6
> and it seems pretty stable and complete.
Okay.
Thanks.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Merciadri Luca
Hash: SHA1
Lew <no...@lewscanon.com> writes:
It may be better. I will change it later. Thanks.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Merciadri Luca
Hash: SHA1
Jeff Higgins <oohi...@yahoo.com> writes:
I am not really surprised by this. Thanks for this link.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Merciadri Luca
Hash: SHA1
Okay, now that I have copied everything in /opt/java/, typing `java'
only shows me gij-related things. Do I have to update some bash's var,
such as a PATH one? Or is there something else to do? Thanks.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Merciadri Luca
Hash: SHA1
I have installed sun-java6-jre using apt-get, to see if it would do
the difference, but typing `java' still shows me
==
Usage: gij [OPTION] ... CLASS [ARGS] ...
to invoke CLASS.main, or
gij -jar [OPTION] ... JARFILE [ARGS] ...
to execute a jar file
Try `gij --help' for more information.
==
I do not think that `gij' is a bad thing, but I think that using the
Sun kit is better. But what?
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Jeff Higgins
> Jeff Higgins <oohi...@yahoo.com> writes:
>
>> Merciadri Luca wrote:
>>> "John B. Matthews" <nos...@nospam.invalid> writes:
>>>
>>>> In article <87eims8...@merciadriluca-station.MERCIADRILUCA>,
>>>> Merciadri Luca <Luca.Me...@student.ulg.ac.be> wrote:
>>>>
>>>>> I am under Debian Lenny, with kernel 2.6.26-2-686-bigmem.
>>>> The LaTeXDraw site mentions requiring JRE 1.6:
>>>>
>>>> <http://latexdraw.sourceforge.net/>
>>> Okay.
>>>
>>>> It appears to be available in sid:
>>>>
>>>> <http://packages.debian.org/sid/default-jre>
>>> The problem is that I am running Lenny.
>>>
>>> Any solution?
>> A web search using the terms: debian lenny sun java
>> seems to reveal considerable installation angst.
>>
>> It also provides a link to a fairly active debian-java mailing list:
>> <http://lists.debian.org/debian-java/>
> I am not really surprised by this. Thanks for this link.
>
<http://www.rsreese.com/2009/05/installing-sun-java-on-debian-lenny.html>
Merciadri Luca
Hash: SHA1
Jeff,
I looked at
http://www.rsreese.com/2009/05/installing-sun-java-on-debian-lenny.html
I therefore installed sun-java6-jdk, and updated java-alternatives,
but
$ gij
still gives me the same output. The problem with LaTeXDraw is still
the same.
To summarize the results,
1. I have installed sun-java6-jre (with apt-get),
2. I have installed sun-java6-jdk (with apt-get),
3. I have tried to install the most recent .bin of Java 6, directly
coming from Sun's website. This .bin gave its content, and I put it in
/opt/java/. It seems not to be recognized.
What do I have to do? Thanks.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Jeff Higgins
>
> To summarize the results,
> 1. I have installed sun-java6-jre (with apt-get),
> 2. I have installed sun-java6-jdk (with apt-get),
> 3. I have tried to install the most recent .bin of Java 6, directly
> coming from Sun's website. This .bin gave its content, and I put it in
> /opt/java/. It seems not to be recognized.
>
> What do I have to do? Thanks.
>
Shrug. :(
PSTricks
<http://jpicedt.sourceforge.net/>
PGF
<http://theoval.cmp.uea.ac.uk/~nlct/jpgfdraw/>
<http://www.texample.net/tikz/resources/>
Merciadri Luca
Hash: SHA1
To Jeff (his message still does not appear in my Gnus): thanks for
these links, but I am confident with LaTeX. I just wanted to make my
good LaTeXDraw friend (which was actually working under Windows XP)
working here too.
I am still a little bit surprised that such a problem remains
unsolved, as it seems to be simple (not to me, okay, but I am really
new to Java-related stuff).
Thanks for the links. ;)
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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John B. Matthews
wrote:
Yes, Sun's jdk-6u17-linux-i586.bin is current; the repositories still
have the previous minor revision. The bin is a wrapper for the licensing
agreement and registration page. You should be able to execute it:
$ sh jdk-6u17-linux-i586.bin
I like to keep JVMs in /usr/lib/jvm. Once installed, I use
update-java-alternatives to manage multiple versions. IIRC, Lew uses a
custom approach, about which I'll defer to him.
Merciadri Luca
Hash: SHA1
"John B. Matthews" <nos...@nospam.invalid> writes:
That is what I did. As I explained before, I then copied the content
of the so-extracted directory, into a given folder. What is the syntax
with update-java-alternatives? Thanks.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Lew
> That is what I did. As I explained before, I then copied the content
> of the so-extracted directory, into a given folder. What is the syntax
> with update-java-alternatives? Thanks.
Linux prompt:
$ man 8 update-java-alternatives
or
<http://www.linuxcertif.com/man/8/update-java-alternatives/>
See also:
<http://linux.die.net/man/8/update-alternatives>
or
$ man 8 update-alternatives
Other Google results:
<http://trailfire.com/rowanrook/trailview/47255>
<http://www.debian-administration.org/article/Installing_Sun's_Java_environment_on_Debian_systems>
--
Lew
John B. Matthews
Merciadri Luca <Luca.Me...@student.ulg.ac.be> wrote:
> > $ sh jdk-6u17-linux-i586.bin
> That is what I did, as I explained before. I then copied the content
> of the so-extracted directory, into a given folder. What is the
> syntax with update-java-alternatives? Thanks.
The simplest expedient is to replace the existing soft link in
/usr/lib/jvm with one that points to your new jdk:
java-6-sun -> jdk1.6.0_17
java-6-sun-1.6.0.16
jdk1.6.0_17
You can also edit a copy of the existing *.jinfo, but you'll have to let
update-alternatives know about it, too. See Lew's Debian admin link.
Here's the installed version applet, for reference:
<http://www.java.com/en/download/installed.jsp>
Merciadri Luca
Hash: SHA1
"John B. Matthews" <nos...@nospam.invalid> writes:
> In article <87hbrlf...@merciadriluca-station.MERCIADRILUCA>,
> Merciadri Luca <Luca.Me...@student.ulg.ac.be> wrote:
>
>> > $ sh jdk-6u17-linux-i586.bin
>> That is what I did, as I explained before. I then copied the content
>> of the so-extracted directory, into a given folder. What is the
>> syntax with update-java-alternatives? Thanks.
>
> The simplest expedient is to replace the existing soft link in
> /usr/lib/jvm with one that points to your new jdk:
>
> java-6-sun -> jdk1.6.0_17
> java-6-sun-1.6.0.16
> jdk1.6.0_17
>
> You can also edit a copy of the existing *.jinfo, but you'll have to let
> update-alternatives know about it, too. See Lew's Debian admin link.
>
> Here's the installed version applet, for reference:
>
> <http://www.java.com/en/download/installed.jsp>
Thanks.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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Merciadri Luca
Hash: SHA1
Lew <no...@lewscanon.com> writes:
Thanks.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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