Java is a general-purpose programming language and a computing platform called the Java Virtual Machine (JVM).
0
votes
1answer
12 views
Why java and java based apps work fine when JAVA_HOME and PATH variables are not set?
I installed jdk8-openjdk in Arch Linux using official repositories. Actually it works fine even before JAVA_HOME and PATH environment variables are not set. javac print the usual output. also java ...
0
votes
2answers
49 views
How to delete comments for java project with sed?
I have a Java project, in which I have JavaDoc comments
/** ... */
other multi-line-comments
/* ... */
line comments
// ...
and my own "explanatory comments"
//* ...
When I release my ...
1
vote
2answers
42 views
How to start the killed java process with its PID?
How to start the killed java process with its PID in Linux?
1
vote
0answers
8 views
Java related error met when installing COMSOL
I would like to install a software called COMSOL on Redhat (Red Hat Enterprise Linux Server release 6.4 (Santiago)) cluster. COMSOL is designed as a Windows software, and its installation requires X ...
0
votes
0answers
14 views
Get an error when trying to install Matlab 2014a on Debian
I'm trying to install Matlab 2014a on Debian Testing. When I run the install script with
sudo ./install -javadir /usr/lib/jvm/java-7-openjdk-amd64/jre/
I get this output
Preparing installation ...
0
votes
1answer
13 views
If I set java bin PATH Dockerfile Jar Command runs but tomcat doesn't
I'm creating a Docker file that FROM's the official TOMCAT 8 docker file and also seeks to use the jar command to extract content from a WAR file so I install openjdk-7-jdk.
If I don't set the PATH ...
0
votes
0answers
32 views
Cannot install NetBeans 8 in Ubuntu 14
I am trying to install NetBeans 8 in Ubuntu 14. When I execute the .sh file using ( I have already set the file as executable )
./netbeans-8.0.2-linux.sh
I get this ( Out of memory error )
I ...
0
votes
0answers
15 views
Interrupted OpenCV building
I was following a tutorial on building opencv for java, but accidentally I interrupted it. Now everytime i want to run the same command to build it, it throws this error:
CMake Error at ...
0
votes
0answers
25 views
Linux capabilities for java to resolve symbolic links
I run a java program by a non-root user.
The program has to resolve a symlink to the real file name,
but the link is owned by a different non-root user.
I used setcap to set capabilities to open ...
0
votes
1answer
21 views
How do I find where the Java Development Kit is installed?
I installed the JDK on Scientific Linux 7. How can I find the location of the JDK where it was installed?
-1
votes
0answers
66 views
How to read/interpret a hexdump file?
I have a file which has an extention of .tax2014, it's a turbo tax file. When I go to open it in a text editor like sublime text I see a hexideciaml dump of data. Example:
9540 4525 6051 095c 5402 ...
0
votes
0answers
12 views
Java Swing or AWT repaint frequency [migrated]
I tried to make a simple game in Java and ended up with this code
@Override
public void paint(Graphics g) {
super.paint(g);
Graphics2D g2d = (Graphics2D) g;
...
0
votes
0answers
27 views
Too many “ESTABLISHED” connection
I have a setup where my client talks to the server via CORBA connection.
Both client and server runs on different machines.
When I start my client a connection is "ESTABLISHED" with the server.
Once ...
0
votes
0answers
21 views
Focus stealing under Xfce in Matlab (Java programs?)
I'm using Matlab R2015a under Debian Linux. I recently switched to Xfce 4.12 as my desktop environment, and since then I am experiencing weird focus behavior:
When I try to interact with the ...
1
vote
1answer
35 views
JMagick Unable to Locate Java Directories
I am new to Linux and am working on a VM. I am trying to configure my JMagick installation, however when I run ./configure I receive an error saying that it is 'Unable to locate Java directories:'
...
0
votes
1answer
46 views
How to install openjfx in kali linux?
Can anyone tell me how to install openjfx in kali linux to use javafx in my applications? I tried
apt-get install openjfx
but the package is unknown in the repo. Or maybe there is another option ...
0
votes
1answer
53 views
Executing command in a script as other user takes 10-15 seconds before execution
I start a bash script (synchronously from java as glassfish user) wich start a command as an other user (let's say myUser):
#!/bin/bash
echo myPassword | su -c "command" myUser &
When I start ...
1
vote
1answer
99 views
Bash script (with a java command) does not exit (script 2)
I start a bash script (synchronously from java as glassfish user) which triggers another bash script:
Script 1 executed from java:
#!/bin/bash
#Start script2 as myUser on myUser desktop
echo ...
0
votes
0answers
277 views
Installing jre-8u51-linux-x64.rpm on SLES 11 SP3: Failed dependencies
I tried to update my Java installation on a SLES 11 SP3 system (for some reasons I want to run the original Java and not the IBM Java provided by SUSE) and I got the following error message:
error: ...
0
votes
1answer
25 views
Is there any advantages of using rpm-based distro for Java development?
I'm using Arch Linux now and everything seems okay. But I'd like to try using some rpm-based linux distro like Fedora or OpenSUSE. It seems that most Java server machines use Red Hat, which is ...
0
votes
0answers
6 views
Adobe Experience Manager Author Server running maximum CPU
Adobe Experience Manager Author Server running maximum CPU
I have an adobe experience manager author server which is using 100% CPU. When I check the online sources and documentation, I was asked to ...
0
votes
0answers
23 views
Sending data from rs232 [duplicate]
I'm trying to write a loopback test with pins 2 and 3 connected. I am using Ubuntu OS and java for the code. The library that I'm working with is JSSC. I am able to read and write from the serial ...
0
votes
1answer
209 views
Why is Android studio complaining about OpenJDK?
I have latest version of Manjaro 64 bit, latest version of Oracle's JDk and Latest version of Android studio. Everything is up to date on my system.
Android studio is complaining about OpenJDK
...
3
votes
2answers
141 views
foolproof way to detect if java process is running
I have a java process that runs continually that sometimes, for reasons I have yet to fully debug, craps out. So, I also have a cron job that looks for the process every 5 minutes and if it finds the ...
0
votes
2answers
49 views
update-alternatives returns error about Java directory not available
I've been trying this tutorial:
How To Manually Install Oracle Java on a Debian
to install Java on Debian 8, but I'm getting the following error :
update-alternatives: error: alternative path ...
0
votes
1answer
69 views
Can't test Java installation as normal user
I have installed java and firefox.
root@localhost:/home/debian# java -version
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) Server VM (build 25.45-b02, ...
0
votes
3answers
127 views
How to install openjdk properly?
Something wrong in my openjdk,i purge it and reinstall it.
root@localhost:/home/debian# apt-get remove --purge openjdk-7-jre
Reading package lists... Done
Building dependency tree
Reading state ...
1
vote
1answer
47 views
Issues with Java in Linux
Firstly, I would like to apologize as I'm not quite sure whether this question is suitable to be on this site or Stackoverflow. I chose U&L eventually because the traffic here is much lower ...
0
votes
1answer
45 views
When I execute a .run file as <user> it works fine. If I sudo run it, it cannot detect Java
I am trying to execute a .run file that will install some applications. I'm installing the application in /opt/... When I run it without sudo, the installer runs correctly but cannot write to /opt/. ...
0
votes
1answer
155 views
How to remove JDK 7 and install JDK 8 in Linux Mint?
JDK 7 is already installed in Linux Mint by default. I want to remove it and to install JDK 8 instead. I youtubed and i found a tutorial. I followed it. What i did was,
first i downloaded JDK from ...
0
votes
1answer
53 views
how to make special program run with different version of java from system? [duplicate]
My system need to use java 1.7. However, I need to run some old apps which require java1.6. Can I use shell script to let the old apps use correct java version?
Could the $JAVA_HOME help?
I try to ...
0
votes
1answer
52 views
Java version is different in GUI and command line
On my Mac I have two different indications of the activated JAVA version
$ uname -a
Darwin Mr-MBP.lan 14.4.0 Darwin Kernel Version 14.4.0: Thu May 28 11:35:04 PDT 2015; ...
0
votes
0answers
41 views
XFCE strange behaviour on Java applications
I recently moved to XFCE 3.12 on my laptop and everything is working great except for a strange behaviour in Eclipse and other Java applications.
When expanding a line selection with Shift+Up or Down ...
0
votes
0answers
12 views
OS X Java Security Edit Site List En Masse
I'm sure, like many other systems administrators like myself who use Mac, you've come across the dreaded Java Security site list and the need to add IP's for individual blades, servers and anything ...
0
votes
2answers
116 views
Java programs not running in terminal
I have java 8 installed on fedora 20.
Any java program runs perfectly fine via eclipse but when I run the same program on terminal it reports an error saying 'could not load main class' . what could ...
1
vote
1answer
37 views
How to switch java environment for specific process?
I use openjdk in my work, but sometimes I need oracle's jre or even specific version of oracle's jre. As I know, I should update JAVA_HOME value and /usr/bin/java or /etc/alternatives/java link ...
0
votes
1answer
64 views
How to change JAVA_HOME temprorary with env command
I use openjdk for my work, but sometimes I need oracle's JRE. I thought that I could use 'env' command for this, but can't figure out why it's not working.
I have
openjdk in ...
1
vote
1answer
50 views
How to copy a installed library to a remote Linux host
I am a newbie on Linux and trying to host my Java project on a remote linux host(CentOS). My Project depends on some native libraries that needs to be existing in the host, and since it is a shared ...
0
votes
1answer
25 views
JAR file terminates unexpectedly without error
I have a JAR file that I'm running in a screen session using java -jar <myjarfile> and for some reason it stops running at unexpected times. I'm redirecting both the StdErr and StdOut to ...
1
vote
1answer
649 views
Tomcat won't use setenv.sh
I have Tomcat installed as service.
It's CATALINA_HOME and CATALINA_BASE are same:
-Dcatalina.base=/usr/share/tomcat7 -Dcatalina.home=/usr/share/tomcat7
I added setenv.sh script to ...
0
votes
0answers
86 views
installing java on cent os 6.6 64 bit system
am trying to follow this link:
How to Install JAVA 7 (JDK 7u79) on CentOS/RHEL 7/6/5 and Fedora
So I downloaded the jdk tar and untarred it.However when I run java -version from within bin I get the ...
0
votes
1answer
66 views
Block outgoing connection from running process
I have an java application that I have been developing. I use a external db server that I can't control. I want to simulate connection error to it, but I'm unable to do it. I have tried to use ...
1
vote
1answer
57 views
What makes a program Linux compatible/incompatible?
I understand that Linux does not support .exe's, but is adding Linux support as simple as providing a .jar version? This summer I'm going to try to really start programming and contributing to... well ...
0
votes
0answers
36 views
Remove or decrease JAVA Security openjdk AWS centos instance
How to decrease or remove java security level in CentOS openjdk? I tried removing the java security level but I didn't find any option, my OS is in an ec2 aws machine.
1
vote
0answers
29 views
Is it possible to create aliases that affect services starting?
Currently I have a custom service that executes java in multiple places.
I want to be able to add an option to any executions of java this service will spawn (I'm specifying the error log location, ...
1
vote
1answer
146 views
Open Java programs of a linux machine on Windows with SSH?
I usually use laptop (which has Windows) to ssh to my Linux server and run stuff on it (e.g. Intellij, MATLAB).
I wonder if there anyway to open Java programs (again, like Intellij) of a remote ...
-1
votes
1answer
25 views
Debian Packaging with JavaSwing?
On my Ubuntu 14.04 machine I am developing a java swing application and I'm compiling it with oracle java version "1.7.0_80"
In the myapp-1.0.0/DEBIAN/control file I put the following information:
...
1
vote
0answers
25 views
Help with java on Fedora
I have installed java on my fedora, because when I execute java -version I get:
openjdk version "1.8.0_25"
OpenJDK Runtime Environment (build 1.8.0_25-b18)
OpenJDK 64-Bit Server VM (build 25.25-b02, ...
0
votes
1answer
44 views
How to know if I correctly installed Java?
I am very new to Linux as I just installed it on my HP Chromebook (Xfce). I am trying to get OpenJDK 7 on it. When I use the Software Center to install it, it looks like it installed correctly, but ...
0
votes
1answer
110 views
JRE failed even after open jdk as well as oracle … using ubuntu14.04
$ sudo update-alternatives --config java
There are 2 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority
Status
0 ...
