This answer is an attempt to address: how to control java version system-wide (not just in currently running shell) when several versions of JDK are installed for development purposes on macOS El Capitan or newer (Sierra, High Sierra, Mojave). As far as I can tell, none of the current answers do that (*).
Available Java Versions For Macos
Previously I used alias'es in .zshrc for easy switching between versions but today I use SDKMAN.SDKMAN can also handle setting default java for the system, and downloading and installing new java versions.
sdk list java will list the java versions available on your system as well as available online for installation including their identifier that you can use in the sdk use, sdk default and sdk install commands.
Using a snapshot version? Already have a local installation? Setup a local version by specifying the path to the local installation: $ sdk install groovy 3.0.0-SNAPSHOT /path/to/groovy-3.0.0-SNAPSHOT $ sdk install java 17-zulu /Library/Java/JavaVirtualMachines/zulu-17.jdk/Contents/Home Note that the local version name (3.0.0-SNAPSHOT and 17-zulu in the examples above) must be a unique name which is not already in the list of available version names.
To get a listing of Candidate Versions: $ sdk list groovy This will result in a list view showing the available, local, installed and current versions of the SDK. ================================================================================Available Groovy Versions================================================================================> * 2.4.4 2.3.1 2.0.8 1.8.3 2.4.3 2.3.0 2.0.7 1.8.2 2.4.2 2.2.2 2.0.6 1.8.1 2.4.1 2.2.1 2.0.5 1.8.0 2.4.0 2.2.0 2.0.4 1.7.9 2.3.9 2.1.9 2.0.3 1.7.8 2.3.8 2.1.8 2.0.2 1.7.7 2.3.7 2.1.7 2.0.1 1.7.6 2.3.6 2.1.6 2.0.0 1.7.5 2.3.5 2.1.5 1.8.9 1.7.4 2.3.4 2.1.4 1.8.8 1.7.3 2.3.3 2.1.3 1.8.7 1.7.2 2.3.2 2.1.2 1.8.6 1.7.11 2.3.11 2.1.1 1.8.5 1.7.10 2.3.10 2.1.0 1.8.4 1.7.1================================================================================+ - local version* - installed> - currently in use================================================================================
Want to switch to a specific JDK or SDK every time you visit a project? This can be achieved through an .sdkmanrc file in the base directory of your project. This file can be generated automatically by issuing the following command: $ sdk env init A config file with the following content has now been created in the current directory: # Enable auto-env through the sdkman_auto_env config# Add key=value pairs of SDKs to use belowjava=17.0.6-tem The file is pre-populated with the current JDK version in use, but can contain as may key-value pairs of supported SDKs as needed. To switch to the configuration present in your .sdkmanrc file, simply issue the following command: sdk env You should see output that looks something like this: Using java version 17.0.6-tem in this shell. Your path has now also been updated to use any of these SDKs in your current shell. When leaving a project, you may want to reset the SDKs to their default version. This can be achieved by entering: $ sdk env clearRestored java version to 17.0.6-tem (default) After checking out a new project, you may be missing some SDKs specified in the project's .sdkmanrc file. To install these missings SDKs, just type: $ sdk env installDownloading: java 17.0.6-temIn progress...######################################################################## 100,0%Repackaging Java 17.0.6-tem...Done repackaging...Installing: java 17.0.6-temDone installing! Do you want to switch SDK versions automatically when you cd into a directory? This can be done by setting the sdkman_auto_env=true in the SDKMAN configuration. Note that this will also reset any project-specific SDKs to their default version when leaving the directory.
Initially called Aeroplane Mode, this allows SDKMAN! to function when working offline. It has a parameter that can be passed toenable or disable the offline mode. $ sdk offline enableForced offline mode enabled.$ sdk offline disableOnline mode re-enabled! When operating in offline mode, most commands will still work even though they will operate in a scaled down capacity. An example is the list command, which will only display the currently installed and active version(s): $ sdk list groovy------------------------------------------------------------Offline Mode: only showing installed groovy versions------------------------------------------------------------> 2.4.4* 2.4.3------------------------------------------------------------* - installed> - currently in use------------------------------------------------------------ The offline mode will also be disabled/enabled automatically when the internet becomes available/unavailable. Naturally, commands that require internet connectivity will not function but give a warning.
Installs a new version of SDKMAN! if available. $ sdk selfupdate If no new version is available an appropriate message will be displayed. Re-installation may be forced by passing the force parameter to the command: $ sdk selfupdate force Automatic daily checks for new versions of SDKMAN! will also be performed on the behalf of the user.
From time to time it may be necessary to flush SDKMAN!'s local state.The flush command helps with this and allows for the following to be performed: Flush storage $ sdk flush This flushes out all archives and the temporary storage folder, but not the broadcast cache. Broadcast $ sdk flush broadcast Clears out the broadcast cache, downloading the latest available news on next command invocation. Archives $ sdk flush archives Cleans the cache containing all downloaded SDK binaries. This can take up a lot of space so is worth clearing out from time to time! Temporary Folder $ sdk flush tmp Clears out the staging work folder used when installing new versions of candidates and SDKMAN! itself.
Configuration can be found in the /.sdkman/etc/config file. To edit the configuration, the sdk config command may be issued to edit this file in the system editor. The following configurations are available: # make sdkman non-interactive, preferred for CI environmentssdkman_auto_answer=truefalse# check for newer versions and prompt for updatesdkman_selfupdate_enable=truefalse# disables SSL certificate verification# -cli/issues/327# HERE BE DRAGONS....sdkman_insecure_ssl=truefalse# configure curl timeoutssdkman_curl_connect_timeout=5sdkman_curl_continue=truesdkman_curl_max_time=10# subscribe to the beta channelsdkman_beta_channel=truefalse# enable verbose debuggingsdkman_debug_mode=truefalse# enable colour modesdkman_colour_enable=truefalse# enable automatic envsdkman_auto_env=truefalse# enable rosetta2 compatibility for apple siliconsdkman_rosetta2_compatible=truefalse# enable bash or zsh auto-completionsdkman_auto_complete=truefalse
SDKMAN! is a tool for managing parallel versions of multiple Software Development Kits on most Unix-like systems (macOS, Linux, Cygwin, Solaris and FreeBSD). We deploy and maintain the versions available from SDKMAN!.
Note that as of June 2022, the DMG available for P-users [version 7,70rev1] only installs on Intel-based MacBooks and does not work for M1 MacBooks; so, the DMG approach is only for those who either (a) have an Intel-based MacBook, or (b) have an M1 MacBook and can get hold of a working DMG [later versions such as 7,70rev6 works fine for M1 MacBook] via an S-user.
(c) Reinstall the SAPGUI client (e.g. as shown above in this blog; if using the JAR method then make sure you have suitable java and javac versions available and environment variables set); then get any needed local xml files back into the (regenerated via install) folder: /Library/Preferences/SAP/
Shorter syntaxes are supported. If the version doesn't exactly matchan available one, it is assumed it corresponds to an interval. For example19.3 gets substituted by 19.3+, which will match all 19.3.x versions,and the latest one will be selected:
The older Oracle JDKs are not available via Homebrew any more. Use OpenJDK instead. To get access to the older OpenJDK versions, you have to add an external repo to Homebrew:
For Python 3.9, Arrow optimization and pandas UDFs might not work due to the supported Python versions in Apache Arrow. Please refer to the latest Python Compatibility page.For Java 11, -Dio.netty.tryReflectionSetAccessible=true is required additionally for Apache Arrow library. This prevents java.lang.UnsupportedOperationException: sun.misc.Unsafe or java.nio.DirectByteBuffer.(long, int) not available when Apache Arrow uses Netty internally.
A major version of OpenJDK is supported for at minimum a period of six years from the time it is first introduced by Red Hat. OpenJDK versions can fall out of support on versions of RHEL if the retirement date of the underlying RHEL platform precedes the retirement date of the OpenJDK version. There are currently three active major versions available in RHEL, but customers are advised to migrate to the newest version of OpenJDK as soon as practical to continue to receive updates and support.
OpenJDK versions can fall out of support on platforms if the retirement date of the underlying platform precedes the retirement date of the OpenJDK version. There are currently three active major versions available, but customers are advised to migrate to the newest version of OpenJDK as soon as practical to continue to receive updates and support.
Yes, it is possible to have multiple versions of OpenJDK on the same Red Hat Enterprise Linux server as long as they are available on the media (DVD) or Red Hat Network channels. These packages are separate packages with the version number clearly identified in the name of the RPM. It is also possible for a third-party Java JDK/JRE to be installed concurrently with OpenJDK. For customer convenience, Red Hat also bundles the IBM JDK via the Supplementary channels. Note that the IBM JDK is not integral to the RHEL content set and follows IBM's guidance on updates and life cycle. We recommend you use the alternatives tool[1] to configure OpenJDK or a third-party Java. 2ff7e9595c