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Questions tagged [openjdk]

65 questions
21
votes
3 answers

Suppressing the “Picked up _JAVA_OPTIONS” message

I'm using _JAVA_OPTIONS to set some defaults for Java on RHEL. It works fine but now every time I start java I get the following message Picked up _JAVA_OPTIONS: -foo -bar -baz is it possible to keep the options but suppress the display of this…
flying sheep
  • 746
11
votes
1 answer

Does OpenJDK contain a JRE?

I recently uninstalled all Oracle Java products and installed OpenJDK from https://jdk.java.net/11/, on my Windows 10 system, because I'm planning to develop some Java applications. In order to install it I simply unzipped the jdk in another folder…
LuxGiammi
  • 233
  • 1
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  • 8
10
votes
3 answers

Are there performance differences between OpenJDK and Oracle?

Oracle has recently decided to start charging for commercial use of their JVM. Our team has started to switch over to using OpenJDK instead, and are finding everything seems to be working fine, except we're getting slower performance. Our servers…
Brad Parks
  • 3,253
7
votes
3 answers

OpenJRE instead of Oracle JRE

Is there an equivalent openJRE like openJDK? I would like to use openJRE if possible to enable java in Internet Explorer instead of Using Oracle Java Is it possible to Enable Java Applet in Internet Explorer using OpenJDK? if yes How?
SeanClt
  • 2,277
6
votes
1 answer

Is Java Control Panel still available in OpenJDK?

My team has upgraded from JDK 8 to JDK 11. Previously we configure web proxy settings in Java Control Panel (javacpl.exe); now we can't find this utility in JDK 11. We don't have jre folder in the JDK 11 folder. Is it still available (maybe with a…
Franklin Yu
  • 806
5
votes
2 answers

How to configure applet plugin for OpenJDK in Firefox on Linux?

I am using Kubuntu 10.04 with Firefox 3.6 from Mozilla's website and I use OpenJDK from the Ubuntu repsitories. I want to know how do I configure OpenJDK with the Firefox to view Java applets in the browser.
Xolve
  • 490
5
votes
3 answers

On Fedora, why do I have to install a devel package to get javac?

From what I've heard 'JDK' stands for Java Development Kit, and on Debian based systems you install default-jdk to get a running javac. However on Fedora (at least the recent ones) installing java-openjdk won't install javac but you have to install…
frans
  • 1,169
5
votes
1 answer

Debian 10 - Oracle JDK not showing up in update-alternatives

Inside a Debian 10 VM I have first installed OpenJDK 11, and it was all OK. Then I have installed Oracle JDK 13 according to instructions posted in Computing for geeks, that means wget-ting the .deb file and install it with dpkg -i. I have got no…
Sandman42
  • 53
4
votes
1 answer

Upgrade from OpenJDK 11.0.7 to 11.0.11 causes SSLHandshakeException: No Appropriate protocol (protocol is disabled or cipher suites are inappropriate)

I have a Java application that connects to an IMAP store and checks for messages. This runs on an Ubuntu 20.04.2 LTS focal on AWS. It is running on Java 11 (OpenJDK). All was working fine, until on the 21st April 2021, the Java version was…
jbx
  • 195
4
votes
3 answers

Freemind on Windows: EXE wrapper not recognizing OpenJDK

I am trying to run Freemind 1.0.1 on a Windows 10 machine with OpenJDK. When I try to launch it from the Start menu or try to open a .mm file in File Explorer, I get an error message saying This application requires a Java Runtime Environment…
user149408
  • 1,142
4
votes
0 answers

cannot find openjdk-11 for RHEL7

I have been trying to install java-11-openjdk-devel required for NetApp AIUM 9.6 on a RHEL 7.5 server. As per Redhat developer portal "https://developers.redhat.com/openjdk-install/#" package could be found in rhel-7-server-optional-rpms However,…
Hitesh Thappa
  • 41
4
votes
3 answers

openjdk-8 for Debian 10

I need to install openjdk-8 on a docker container based on the latest python image (debian 10), but the openjdk-8-jdk package has been removed from the stable debian repository. I've already tried the usual apt-get install openjdk-8-jdk and…
Emil Chitas
  • 51
3
votes
3 answers

Can't start Pycharm due to inability to detect graphics settings

I just downloaded the PyCharm IDE on my Feodra to play around with Django. I am unable to run it due to some graphics environment problem, which doesn't tell me much. I have downloaded and installed the OpenJDK as mention in Pycharm installation…
sztyrymytyry
  • 33
3
votes
3 answers

Remove openjdk without removing tomcat

When i want to remove openjdk it says that tomcat will be removed too. apt-get remove openjdk-6-jre-headless Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically…
user2361682
  • 33
3
votes
0 answers

OpenJDK timezone issues: sun.util.calendar.ZoneInfoFile.getZoneIDs

I'm using Ubuntu 12.04 LTS and recently installed the openjdk-7-jdk using apt-get. For a while all seemed fine, but I realized one of my projects started to break with the following…
gabriel_agm
  • 333
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