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.
With Mac OS 10.7 (Lion) and later, the Java runtime is no longer installed automatically as part of the OS installation. Follow any of the methods below to install Java runtime. Oracle Java for Mac or Java 7 JRE/Java SE Runtime Environment 7 is the official version of Java for Mac by Oracle that allows you to run Java applications and games, both in your web browser and within the OS X Desktop. Because of security concerns, its only recommended that you install Java for Mac if you really need it. Up until now, Apple has its own version of Java, which is out of step. Download Java SE 8 Environment 8 1.8.11.12 for Mac. Fast downloads of the latest free software! 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 Java.com), Dreamweaver could still display the prompt.
Note:
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).
In the pop-up window that appears, click Install and follow the onscreen instructions to install Java SE 6 Runtime.
Note:
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 Java.com), 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.