New Java Update 2012-006 for OS X Removes Java
A new update labeled Java for OS X 2012-006 has been released for all versions of Mac OS X. The updates name is somewhat misleading however, in that instead of updating Java it actually uninstalls the Java applet plugin from all web browsers on the Mac. This is done as a security precaution to protect against potential malware, which has consistently used Java exploits as a means of attack. With Java removed from the browser (but not the OS), it forces Mac users to download the absolute newest version of Java directly from Oracle if the plugin is needed.
Installing the update removes will cause a “Missing Plugin” alert to appear if you visit a webpage that requires Java. In turn, that will direct you to Oracle to download the newest version of Java.
If you don’t find the update available on your Mac, it means you either uninstalled Java already, or you never installed it to begin with. Ignoring or hiding the update is also possible, though the security benefits of going through with it are strong.
For those that install the update but need Java to access certain websites, download the newest version of Java and then disable it on a per-browser basis, or even system-wide when it’s not needed.