


You can install legacy versions of Java in OS X El Capitan by using the Java for OS X 2015-001 installer, which includes Java 6.

Install Java SE 6 in OS X El Capitan from Apple If you get stuck on “verifying…” during the installation process of Java, it’s because of rootless. Mac users may need to disable rootless SIP protection in OS X before being able to successfully install Java, but you can enable it again after it has been installed. And if you’re not sure whether you need Java or not, that means you probably do not need Java at all, and you can also avoid installing java. To be clear, if you do not need Java, you should not install Java. Whatever the case, if you need Java JRE or Java JDK in OS X 10.11 or later, here’s how you can install it. Additionally, when trying to use some particular applications or web content, you may come across a “This application requires the legacy Java SE 6 runtime which is unavailable for this version of OS X.” error message, which means if you want to run that app you’re going to need to use an older version of Java.
