Java Runtime Environment for Mac (JRE for Mac) allows you to play online games, chat with people around the world, calculate your mortgage interest, and view images in 3D, just to name a few. It's also integral to the intranet applications and other e-business solutions that are the foundation of corporate computing.

While launching, Dreamweaver (13.2 and earlier versions) prompts you to install Java SE 6 Runtime.

Java SE 6/SE 7 Runtime is installed on the computer.


In Dreamweaver 2014, the prompt does not appear when you launch Dreamweaver. However, you are prompted to install Java SE 6 runtime while logging in to PhoneGap Build service (Site > PhoneGap Build Service > PhoneGap Build Service).

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In the pop-up window that appears, click Install and follow the onscreen instructions to install Java SE 6 Runtime.


In Dreamweaver 2014, you can't log in to PhoneGap Build service without installing Java SE 6 Runtime.

Important: Ensure that you install Java SE 6 Runtime only by clicking Install in the pop-up window. If you install Java SE 6 or 7 Runtime through any other means (for example, by directly accessing, Dreamweaver could still display the prompt.

Even if you have installed Java SE 7 Runtime, you still need to install Java SE 6 Runtime as described above.

If you continue to see the prompt even after installing Java SE 6 Runtime as described above, perform the following steps:

Dreamweaver displays such a prompt because, when you update to Mac OS 10.9, Java SE 6 Runtime on your computer gets uninstalled.


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Last updated: October 22, 2017

The steps below explain how to uninstall Oracle Java 7 or Java 8 from your Mac. Please note that to uninstall Java on Mac, you must have Administrator privileges. To uninstall Java on Mac, you first need to delete the Java plug-in file itself. Here is how to find the Java plug-in file:

  • Click on the Finder icon in your Mac’s dock
  • Click on the Applications tab in the sidebar
  • In the Search box enter (or copy/paste): JavaAppletPlugin.plugin
  • Right-click on JavaAppletPlugin.plugin and choose Move to Trash

Alternatively, if you are familiar with using the Mac’s Terminalutility with Administrator privilegesas root or by using sudo, you may copy/paste the command line below to uninstall Oracle Java 7 or Java 8. You can launch Terminal by using Finder -> Applications -> Utilities. Double-click Terminal to launch it. In the terminal window, type (or copy/paste) the following command:

sudo rm -fr /Library/Internet Plug-Ins/JavaAppletPlugin.plugin

How to Restore Apple’s Java 6 after uninstalling Oracle Java 7 or Java 8

If you updated your Mac to Oracle Java 7 or Java 8, and it has created an unforeseen issue, you can still use Apple’s Java on your Mac. You just need to restore it. Before restoring Apple’s Java, however, you need to uninstall Oracle’s Java using the instructions above. Please note that to restore Apple’s Java, you must also have Administrator privileges and execute the command either as root or by using sudo.

  • Click on the Finder icon located in your dock
  • Click on Applications tab on sidebar
  • Click on the Utilities folder
  • Double-click on the Terminal icon
  • In the Terminal window Copy and Paste the command below:

sudo ln -s /System/Library/Java/Support/CoreDeploy.bundle/Contents/JavaAppletPlugin.plugin /Library/Internet Plug-Ins/JavaAppletPlugin.plugin

Unless you absolutely have to have Apple’s Java, it is advisable to install Java provided by Oracle instead. It is under continuous development, and updates are released on a regular cycle. Oracle is also known to release out-of-cycle Java updates if an urgent fix is required to patch a newly discovered vulnerability.

Thank you for visiting Tech Help Knowledgebase to learn how to uninstall Java on Mac.

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