Questions tagged [openjdk]
Is a free and open source implementation of the Java programming language. It may be installed from the software centre.
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OpenJDK - Installing JDK Debug Symbols manually
i have all OpenJDK8 files and its debugging symbols, i can get OpenJDK working but when i try to use something that is used to debug, i'm still getting errors related to the dbg files, i don't know ...
CommunityBot
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Various errors while installing java 8 on Ubuntu 16.04 (64 bit) in VM [duplicate]
I am using Oracle VM Virtual Box (Version 5.1.18) to run Ubuntu 16.04. I am using proxy server . I have configured proxy settings in apt.conf and apt.config.In both these files my http proxy is set ...
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eclipse: class file version 53.0), this version of the Java Runtime only recognizes class file versions up to 52.0
Since the update yesterday (yes, the linux update), eclipse denies me to run even the most simple helloworld:
has been compiled by a more recent version of the Java Runtime (class file version 53.0), ...
CommunityBot
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1
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How to safely update or switch from any version of Java to Java 17 on Ubuntu 22.04
I have Ubuntu 22.04 installed on a Virtualbox VM running on Windows 10.
I have to switch the current version of Java installed on my Ubuntu to Java 17, which is the most recent version guaranteed to ...
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install openjdk 21
I have Ubuntu 22.04.3 LTS.
I have run
sudo apt update
but when I execute
apt install openjdk-21
the package can't be located
Reading package lists... Done
Building dependency tree... Done
Reading ...
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1
answer
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Change java version from 1.8.0_161 to 1.8.0_151 Ubuntu 16.04
I am using ubuntu 16.04 LTS.
...$ java -version
java version "1.8.0_161"
Java(TM) SE Runtime Environment (build 1.8.0_161-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.161-b12, mixed mode)
...$ ...
CommunityBot
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IcedTea-8 cannot run any jnlp application (maybe due to openjdk-11?)
I'm on Ubuntu MATE 18.04. All the jnlp applications I tried give execution error. After inspection, some libraries seem to be missing in Java.
So I removed everything, started installation again, and ...
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Problems installing jdk over OpenJdk on Ubuntu
I tried to install JDK 21 on a machine with Ubuntu (last LTS) with a previous installation of OpenJDK 17.
I tried to remove the old one first with a mix of autoremove and purge (I do not remember the ...
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1
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How do I run mutiple Java applications with different versions?
I am using Ubuntu 18.04 LTS and I have 2 apps which need to run with different Java versions. My 1st app (Mirth Connect) needs to run on jre1.8.0_171 and my second app (Power Assist) needs to run on ...
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VisualVM Version of OpenJDK is not supported
I have install VisualVM on my Ubuntu machine, and I'm getting this error when trying to open it:
Version of OpenJDK is not supported. Please use the default-jdk.
I have no idea on how to solve it
java ...
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2
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Minecraft 1.8.9 Won't launch even when changed Java version to 8
I recently switched to Ubuntu, and I'm new to Linux.
I want to play Minecraft on version 1.8.9 on my Ubuntu machine.
I heard that you need to set your java to version 8, so I did that, and now the ...
CommunityBot
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0
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How to make IcedTea use OpenJDK instead of (no longer installed) Oracle Java?
I had some issues with an .jnlp file using OpenJDK so I installed Oracle Java.
It didn't work either, so I uninstalled it (the config folder is still there though).
Now, if I want to open something ...
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FreeMind won't run even with OpenJDK JRE installed
I installed FreeMind from USC Ubuntu 12.04, but it failed to run with the following error:
[warning] /usr/bin/freemind: No java runtime was found
[error] /usr/bin/freemind: Unable to find an ...
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How do I enable Libreoffice Base 7.5 on Ubuntu 22.04?
I've added openjdk version "11.0.19" 2023-04-18:
OpenJDK Runtime Environment (build 11.0.19+7-post-Ubuntu-0ubuntu122.04.1)
OpenJDK 64-Bit Server VM (build 11.0.19+7-post-Ubuntu-0ubuntu122....
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Netbeans won't start due to UnsupportedClassVersionError and asks for java 55 aka 11 but I do have it
When I try to run my newly installed Netbeans, I get:
org.netbeans.InvalidException: StandardModule:org.netbeans.modules.db jarFile: /usr/share/netbeans/10.0/ide/modules/org-netbeans-modules-db.jar: ...
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How to set PATH, HOME, JAVA_HOME variables correctly for working with maven after Java-JDK installations?
I visited the webpage at https://help.ubuntu.com/community/EnvironmentVariables and find out about setting environment variables and local user variables and have got a pretty clear picture. But I am ...
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Installing Ant is overriding Java Installation
I am trying to install ANT after installing java. My java in Sun Java.
pc19@pc19-H110:~$ java -version
java version "20.0.2" 2023-07-18
Java(TM) SE Runtime Environment (build 20.0.2+9-78)
...
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1
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How to enforce a package dependency instead of an alternative?
I am developing a Debian package for Ubuntu which uses Java 17. We have historically had a runtime dependency on openjdk-17-jre. We have a part of our software that has used JavaFX on Windows and ...
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4
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I cannot install java from the software center
I can't install openJDK from the software center, I get the error:
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/o/openjdk-7/openjdk-7-jre-lib_7u15-2.3.7-0ubuntu1~12.10_all.deb 404 ...
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Getting error while installing NetExtender in Ubuntu 22.04
Unable to install netextender in Ubuntu while executing ./install in termnal. The error coming is
./install: line 302: /usr/sbin/netExtender: cannot execute binary file: Exec format error
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Package 'openjdk-11-jdk' has no installation candidate
When trying to install OpenJDK 11 in Ubuntu, I got an error
sudo apt-get install openjdk-11-jdk
Reading package lists... Done
Building dependency tree
Reading state information... Done
...
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3
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Cannot set JAVA_HOME after installing opendjk with snap
I installed openjdk with sudo snap install openjdk, and
I want to set JAVA_HOME to enable my java related commands in terminal, but it is not working.
I tried the following:
creating a script ...
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12
answers
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How to install OpenJDK 8 on 14.04 LTS?
Java 8 is now available according to http://openjdk.java.net/projects/jdk8/, but http://openjdk.java.net/install/ does not yet mention how to install OpenJDK 8 (not Oracle Java) on Ubuntu 14.04 Long ...
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0
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REW (Room EQ wizard) not working?
REW (Room EQ Wizard) has stopped working.
The following warning pops up.
“Unable to access the selected device to
AudioFire8a [plughw:0,0] does not have any line supporting
PCM_SGNED 44100.0 Hz, 32 ...
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How do I install and setup OpenJDK in Ubuntu from Snapcraft?
How is OpenJDK installed from snap so that javac and java are available from the CLI?
nicholas@mordor:~$
nicholas@mordor:~$ snap list
Name Version Rev Tracking ...
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Command line Java: Error: A JNI error has occurred/Exception in thread "main" java.lang.NoClassDefFoundError
I'm trying to compile/build/run a Java project for the first time on Ubuntu 14.04. The project depends on the CPlex optimization library. I've compiled the code using
javac -classpath .:/opt/ibm/...
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1
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How to install openjdk-18?
I am trying to optimize Minecraft on Linux and it says to get the latest OpenJDK JRE.
My current setup is:
$ sudo update-alternatives --config java ...
CommunityBot
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2
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Java 11 to 8: update-alternatives: error: no alternatives for mozilla-javaplugin.so
I have Java 11 and 8 in my Ubuntu 18.04, side by side.
I mean to set Java 8 as the default.
What I get:
$ sudo update-java-alternatives --set /usr/lib/jvm/java-1.8.0-openjdk-amd64
update-...
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1
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Install openjdk-11-jdk 32bit on Ubuntu 20.04 64bit
I have installed openjdk-11 64 bit, but I need to install 32bit version
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.2 LTS
Release: 20....
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When I try to install OpenJDK 11, OpenJDK 10 got installed
I used the below apt command to install OpenJDK 11
sudo apt install openjdk-11-jdk
But, OpenJDK 10 got installed, result of java --version
openjdk 10.0.1 2018-04-17
OpenJDK Runtime Environment (build ...
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1
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Trying to run Clion but get "No JDK found. Please validate either CLION_JDK, JDK_HOME or JAVA_HOME environment variable points to valid
I'm trying to run Clion IDE on Ubuntu 22.04.
I installed JRE and I think I installed JDK by running:
sudo apt install -y openjdk-18-jdk
but when I run ./clion.sh I get:
No JDK found. Please validate ...
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How to install only javadoc?
I installed java downloading the relative file from the Oracle site, and following the manual guide I found on http://wiki.ubuntu-it.org . I have it and it works.
Now I'm trying using javadoc with ...
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openjdk-11-jdk-headless_11.0.16 Connection failed[IP: 91.189.91.39 80]
I trying to install openjdk-11-jdk-headless
But the same error (connection failed) occurs repeatedly as below.
How could I solve this problem ?
Ign:1 http://archive.ubuntu.com/ubuntu jammy-updates/...
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Java process consuming too much ram in background, how to remove it?
My PC has been crashing a lot of times recently, it suddenly stops responding and after a few seconds, it asks me to force quit some apps. At first, I thought it was a problem with VSCode since it ...
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Unable to locate package openjdk-14-jdk, Ubuntu 20.04
I am trying to install openjdk-14-jdk required for install the Eclipse IDE, but it returns "E: Unable to locate package openjdk-14-jdk". There is no recommendation when I click TAB at "...
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Switch between multiple java versions
While installing Android Studio on Ubuntu 14.04 I get the message that my Java version (javac 1.7.0_79) is causing problems. I found a solution of how to install a newer Oracle version of Java:
sudo ...
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After uninstalling java 18 and installing java 11, running a program based on Java raise "Error: could not find libjava.so"
I want to run a program based on Java 11 (Geoserver) in a Ubuntu 22.04 OS hosted on a virtualbox VM on a Windows 10 host OS.
Since I had Java 18 installed before (I installed it by following this ...
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I possibly installed a malware by a misspelled java installation command in the terminal
I was trying to download java, more specifically, JDK version 16. The right command was sudo apt install openjdk-16-jdk, but I end up typing sudo apt install open-jdk-11 instead, the funny thing is ...
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Ubuntu 22.04 Wine jvm creation error
I am trying to install the UNM2000.exe software, from Fiberhome via Wine on Ubuntu 22.04, but I'm getting this wine error:
JVM Creation failed.
I've used this software with the same installation ...
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2
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ca-certificates-java fails when trying to install openjdk-6-jre
I use a VPS with Ubuntu Server 10.10 x64. I want to use Java and run the command sudo apt-get install openjdk-6-jre but it fails because the installation encounted errors while processing ca-...
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1
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HOW TO? Uninstalled 'I2P' (Java application) but 'I2P' still starting java service after system startup
I installed I2P on my Ubuntu 14.04 (latest updates, openjdk-8-jre) using java -jar i2pinstall_0.9.28.jar -console.
After playing around with it, I uninstalled it by sudo java -jar uninstaller.jar, ...
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1
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Not being able to run a java executable
I am currently trying to install forge (forge-1.18.2-40.0.36-installer.jar) on my new ubuntu 22.04 install. I have already installed minecraft (with the .deb), show the "secret" .minecraft ...
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Exception in thread "main" java.lang.RuntimeException
I'm trying to set up a 1.18.2 fabric modded minecraft server but I keep getting this error when I try to run the .jar file for it from the terminal. I am running ubuntu version 22.04 and openjdk ...
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4
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Do I have log4j on my Ubuntu 18.04.6?
I'm obviously worried about this vulnerability, but I wonder if I even have this library on my machine?
The machine is a webserver running a couple of node expressjs frameworks over nginx, plus a ...
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1
answer
540
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Installing Latest Openjdk and Gradle using package managers only
Im fairly new to developing using the java ecosystem of tools, but i have never experienced a language ecosystem that involves as much installation effort.
My goal is to create a pico cli following ...
1
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0
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668
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How to install OpenJDK-19 debug symbols on Ubuntu 20.04?
I've installed OpenJDK-19 on Ubuntu 20.04 using snap. However, I'm not able to find the package in snap which corresponds to openjdk-19-dbg in apt, and I can't find OpenJDK-19 in apt at all.
Could you ...
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Downgrade openjfx on Ubuntu 22.04
I'm trying to Install the package Burai (https://nisihara.wixsite.com/burai) for DFT calculations. This package depends on the openjfx library and becaus of recent bug in the openjfx I'm getting the ...
204
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9
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How to completely uninstall Java?
How can I completely remove all traces of Java on my system?
I already know how to install it in case I need it again.
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5
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Installing Java 7 in 16.04 and using multiple Java versions
I already installed Java 8, but I don't know how to install Java 7 and how to switch between the two Java versions.
I also want to switch between Java 7 and 8 to update a project I am working on. I ...
9
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4
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38k
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How to install JDK8 on Ubuntu 16?
I needed JDK 8 for Bazel. I ran sudo apt-get install openjdk-8* on a freshly built Ubuntu 16.04.02 machine, but after installation update-alternatives --config java show two paths:
/usr/lib/jvm/java-...
