We currently run Java 17.
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JDK Installation
Ubuntu
OpenJDK is the recommended JDK to install.
OpenJDK
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Use apt to install |
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Azul Zulu JDK
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Example
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$ curl -sL https://cdn.azul.com/zulu/bin/zulu8.54.0.21-ca-fx-jdk8.0.292-linux_x64.tar.gz -o zulu.tar.gz
$ tar -xvzf zulu.tar.gz
# mv zulu8.54.0.21-ca-fx-jdk8.0.292-linux_x64/ /opt/.
# rm /opt/zulu
# ln -s /opt/zulu8.54.0.21-ca-fx-jdk8.0.292-linux_x64/ /opt/zulu |
Jetbrains Runtime
The Jetbrains runtime (customized JDK) is an option for installing on Linux. It provides font rendering fixes. Read more here.
Using SDKMAN!
See the page on SDKMAN!.
Before starting, a useful command to remember is "list" which shows all available versions:
sdk list javaNow install JavaFX:
sdk install java 8.0.322.fx-zulu
Note, the JDK will be installed in a hidden folder located at:
~/.sdkman/candidates/java/8.0.332.fx-zuluWindows
Azul is providing JDK 8 with JavaFX as part of their community Zulu distribution. You may also reference the official Zulu Installation Guide including the Installation on Windows Using the Zulu ZIP File page.
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Verify installation by opening a terminal and typing |
Windows
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Oracle (recommended)Download installer from https://www. |
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- Java Version: Java 8 (LTS)
- Operating System: Windows
- Java Package: JDK FX (if not already selected)
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- Append the bin directory of the JDK to the PATH variable (i.e
PATH=<other_stuff>;C:\Program Files\Zulu\zulu8.46.0.19-ca-fx-jdk8.0.252-win_x64\bin) - Set JAVA_HOME to the JDK directory (i.e
JAVA_HOME=;C:\Program Files\Zulu\zulu8.46.0.19-ca-fx-jdk8.0.252-win_x64)
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java -version
openjdk version "1.8.0_252"
OpenJDK Runtime Environment (Zulu 8.46.0.19-CA-win64) (build 1.8.0_252-b14)
OpenJDK 64-Bit Server VM (Zulu 8.46.0.19-CA-win64) (build 25.252-b14, mixed mode) |
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Note: JDKs are also available from https://adoptopenjdk.net/, but they won't provide JavaFX, which breaks most of IHMC's robotics software.
Mac OS X
Download JDK and JavaFX from https://adoptopenjdk.net/ or https://www.azul.com/downloads/zulu/zulufx/
Download JavaFX 8 from https://www.azul.com/downloads/zulu-community/zulufx/
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This section needs more info. No one has tried this yet./java/technologies/downloads/#java17. The x64 MSI installer is the most convenient. Default installation settings are fine. Verify installation. Open a terminal and call Something like the following should be outputted: Aside: java will be installed at the location |
Configuration
Logging
See the IHMC Log Tools README for details on enabling different log levels.
Testing
For testing in IDE, see Unit Testing/wiki/spaces/HOWTO/pages/14288377. For testing with Gradle and on Bamboo, see IHMC CI Gradle plugin and Integrating with Bamboo /wiki/spaces/HOWTO/pages/14288249.
JVM options
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Needs updating for Java 17. |
Increase Stack Size
Use -Xss4m for example to set a custom stack size. Default is 512 KB (-Xss512k)
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See Java Platform Module System
Learning Resources
- Guide: Learning Java
- The Java™ Tutorials
- Thinking in Java (ISBN 978-0131872486) by Bruce Eckel
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