Click to expand.I don't think that is correct. I read recently about an exploit in a PDF document that used java to execute. You would not need a browser to open such a PDF and presumably if java is on the system, the exploit would not need the browser/plug-in to do whatever it does. Considering it is problematic from a security standpoint and offers no benefit at least to me personally, I consider it a good idea to simply remove it. ![]() This is a mid-2011 iMac which originally shipped with Lion and was soon thereafter upgraded to Mountain Lion. I never deliberately installed java that I can recall but I will check as noted above to see if it is present on this system. I checked and it does not appear in System Preferences/Other so I presume it isn't installed. Click to expand.For the most part nowadays the Internet simply doesn't function without JavaScript. Facebook would be all but broken without it. I really loath the fact that it's called JavaScript because in reality JAvascript has as much in common with Java as Carhartts do with Cars, yes they both have the word car in them but that's it. ![]() JavaScript is named the way it is because when it was first coming out Java was beginning to become popular and the people behind it wanted to use the java name to capitalize on it's popularity. In fact the two are not related in any way. Thanks all for the clarification on javascript. I did some reading about it since asking and was not aware it is so prevalent on the Web. Gear head optical mouse driver. Sep 5, 2018 - Then, I removed 10, and when I launched a jar from the terminal it would. Sudo rm -rf jdk-10.0.1.jdk #or whichever version you want to delete. Thus, if you do not know why this application is needed or do not use it, it’s better to uninstall Java from Mac. Various browser and programs might need Java in order to run. However, Apple has stopped including it in OS X due to security issues in 2012. Additionally, the. I tend to stick to well known trusted sites so I'm not too worried about javascript now. As for java, I did run: java - version in a terminal window as a check to see if it was installed and found it was not for sure. I got the message back: No java runtime present and then a dialog box popped up offering to install it if I wanted, which I dismissed with a no thanks. Thank you again everyone for the helpful information. Click to expand.There are several other environments on your Mac that can run code which can do Bad Things™. The Unix shell, Perl, Python, Ruby, AppleScript, and various forms of C. And EMACS, probably.;-) All of these can be used to execute 'Malicious' code. The only difficult bit is getting the code onto your Mac and executing it. The only problem with Java was that you could execute Java unchecked in a browser, which makes an easy attack vector. Patches to Java itself, along with Apple's white/black list for Java in Safari makes the Java installation completely safe (well, as safe as any other language and the code you choose to run on it).
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