This opens a dialog box to edit this variable. Select the existing JAVA_HOME variable and then click Edit. Under System Variables, do one of the following:Ĭlick New to create a JAVA_HOME variable. If a JAVA_HOME system variable does not exist, or if it points to the wrong location, continue to the next step. If you see the JAVA_HOME system variable and it points to the correct location, leave the Environment Variables dialog box open and follow the instructions in Set the JAVA_HOME System Path. The JAVA_HOME path should point to the location that you recorded when you installed the JRE. Under System Variables, look for the JAVA_HOME system variable. On the desktop (Windows 2000) or in the Start menu (Windows XP), right-click My Computer and then click Properties.Ĭlick the Advanced tab, and then click Environment Variables. You can also override the runtime used for IntelliJ IDEA by adding the IDEA_JDK environment variable with the path to the desired JDK home directory.These steps verify that the JAVA_HOME system environment variable points to the JRE that you installed, or creates the variable if absent. If there are problems with the selected runtime, you can delete this file to revert to the default runtime. The path to the selected runtime is stored in the idea.jdk or idea64.jdk file in the IntelliJ IDEA configuration directory. To reset back to the default runtime that the IDE initially used, click Use Default Runtime. Alternatively, click Add JDK to specify the location of the desired Java home directory. IntelliJ IDEA lists all the JDKs and JREs that it was able to detect.
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To use a different Java runtime available on your computer, select Add Custom Runtime… under Advanced. When you open the Choose Boot Runtime for the IDE dialog for the first time, it may take a while to load the list of JetBrains Runtime builds from the server. Wait for IntelliJ IDEA to restart with the new runtime.
#Java runtime environment mac update download#
If necessary, you can change the location where IntelliJ IDEA will download the selected runtime. Switch the Java runtime used to run IntelliJ IDEAįrom the main menu, select Help | Find Action or press Ctrl+Shift+A.įind and select the Choose Boot Java Runtime for the IDE action. Reset back to the default runtime when updating IntelliJ IDEA to get the latest compatible version of JetBrains Runtime.
#Java runtime environment mac update update#
When using a non-default Java runtime for IntelliJ IDEA, it will not update with the IDE and may not be compatible with the new version. Define an SDK for each of your projects, which includes the necessary development and runtime environment. The runtime for IntelliJ IDEA is not the same runtime used for your applications. Do not change it unless you were specifically asked to do so by JetBrains support. However, in some cases you may be required to use another Java runtime or a specific version of JetBrains Runtime.Ĭhanging the boot Java runtime may cause unexpected problems.
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JetBrains Runtime fixes various known OpenJDK and Oracle JDK bugs, and provides better performance and stability. By default, IntelliJ IDEA uses JetBrains Runtime (a fork of OpenJDK), which is included with the IDE.
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As a Java application, IntelliJ IDEA requires a Java runtime environment (JRE).