6 December 2016, 10:00
Alternatively, if you are familiar with using the Mac’s Terminal utility with Administrator privileges as root or by using sudo, you may copy/paste the command line below to uninstall Oracle Java 7 or Java 8. The Java Development Kit (JDK), officially named 'Java Platform, Standard Edition (Java SE)' is needed for writing Java programs.The JDK is freely available from Sun Microsystems (now part of Oracle). Java and the Mac OS X Terminal This page is obsolete. This document instructs you on how to use the Mac OS X Terminal with Java. Try running your program with the command line machine:~/introcs/hello wayne$ java -cp./ HelloWorld If this works, your classpath is set incorrectly.
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Recently people are reporting seeing a golden-oldie of a Mac error dialog. It reads:
You might see this if you’re using the Facebook Video Calling app, an Runscape add-on app called OSBuddy, or indeed a variety of apps (some old versions of Adobe CS apps showed the error, for example).
What’s happening is that an app is trying to use the Java Runtime/Development Kit to run, and it isn’t installed. The error you’re seeing is one built into macOS/OS X that simply prompts you to install it.
While fixing the error is as simple as installing the software, it’s first absolutely necessary to make sure you system hasn’t got some malware that’s causing the error to appear. A depressing amount of malware uses Java to run.
To this end, as always I advise you run through a combo of:
Both are ultra-simple to use (undertake a deep scan when possible), so I won’t go into that here. I recommend both because you can run them when required, and they don’t stick around in the menu bar chewing-up system resources like other crappier antimalware apps.
Assuming no malware is found it’s necessary to make sure you know what apps are starting when you login. If there’s any you don’t recognize then you need to proceed with caution.
Java Command Line Install Mac
Here’s how to install Java, which will remove the message. Do not do this unless you’re absolutely sure a trusted app on your system requires Java. If you simply enable Java without knowing this, you’re likely to be enabling malware to run on your computer – which would be so dumb as to be eye-watering.
Head over to the Java website, then download and install Java. Reboot your computer. If the error still appears then it might be necessary to install the most recent – but still pretty old – version of Java that Apple released several years ago.
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EtreCheck works well to scan and see what’s in those startup folders.
— Peter Gilbert · Dec 6, 12:46 PM · #
◀︎ Closing a window full of tabs WITHOUT quitting the app How To Remove Java Command Line Tool From MacComments are closed.
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