On Microsoft Windows all of the JREs that are installed on a computer are shown. This is the JRE that is associated with the Java Control Panel. The table always has at least one entry, which is the most recently installed JRE. Optional custom options used to override the Java Plug-in default startup parameters, see Java Runtime Parameters User - All of the registered JREs and the JREs that the user added System - JRE that was used to start the Java Control Panel Type of JRE found, which is one of the following values:
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Java platform number for the JRE, for example, 1.8 or 9įull version number of the JRE, including the update number, for example, 1.8.0_101 Note: If Java content in the browser is disabled in the Security tab of the Java Control Panel, enabling the JRE in the Desktop Settings tab has no effect. However, the current JRE might be used even if it is not marked as enabled. If the check box for a JRE is not selected, then Java Plug-in and Java Web Start will not use the JRE to launch Java applications.
Settings in the Java Control Panel do not apply to standalone or self-contained applications. However, if an update is considered critical, you are notified within a week of its release.Ĭlose the Automatic Update Advanced Settings window to see your selection in the Update tab.Ĭlick Apply to save your changes, or OK to save your changes and close the Java Control Panel.įlag that indicates which of the JRE versions are considered when running an application using Java Plug-in or Java Web Start. Monthly updates check weekly and notify you within 30 days that an update is available. For monthly updates, select the day of the week and the time of the day. For weekly updates, select the day of the week and the time of the day. For daily updates, select the time of the day for the update. Select how often you want the check to run and the day and time to run it.Ĭhoose Daily, Weekly, or Monthly. The Automatic Update Advanced Settings window is shown. Your JREs are updated automatically on a schedule that you set.įrom the Notify Me Before an Update is drop-down list, choose to be notified either before the update is downloaded, or after the update is downloaded but before the update is installed.Ĭlick the date and time shown for Check for Updates to set up the schedule for updates. To schedule an automatic check for updates: The time of the last check is shown above the button. To immediately check for an update, click Check Now. The following instructions are for Microsoft Windows. You must have Administrative privileges to update the JRE.
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A manual check can be done at any time from the same tab. Set the time and frequency for automatic updates of your JRE from the Update tab of the Java Control Panel. Search the Java Control Panel for settings to configure. Manage the exception site list for your system.Įnable enhanced security restrictions for Java and JavaFX applications embedded in or launched from a browser.Ĭonfigure settings for debugging, applet handling, and other functions. View the active deployment rule set on your system, if any. Manage the JREs on your system and set runtime parameters for them. Update your version of the Java platform so that you always have the latest Java Runtime Environment (JRE). View and delete temporary files used by the Java Plug-in, which runs applets and JavaFX applications that are embedded in a browser, and by Java Web Start, which enables you to run Java and JavaFX applications over the network. The Java Control Panel provides the following capabilities: To start the Java Control Panel from the command line, enter \bin\javacpl.exe on Windows, or /bin/jcontrol on macOS or Linux. In JDK 9, the Java Control Panel was rewritten as a JavaFX application and the location of some functions has changed. Alternatives for applets and embedded JavaFX applications include Java Web Start and self-contained applications. Note: Although available and supported in JDK 9, the Applet API and the Java Plug-in are marked as deprecated in preparation for removal in a future release.
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