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I can't find the Java console in Preferences nor in Utilities. Can I open the Java console from a Terminal command?

Running OS X 10.7.5 and Java version 1.6.0_65

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  • from which program using java?
    – mmmmmm
    Jun 24, 2014 at 21:32

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It is somewhat maddening, but the Java console won't display unless a Java application is actually running. The easiest way to get it started is to visit https://www.java.com/verify/ from the Firefox browser.

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If you're opening a Runnable Jar (one which you click in finder to open), just try running it in terminal (from Spotlight search) using java -jar /path/to/file.jar.

If it's a Java Web Applet, you need to go into System Preferences -> Java -> Advanced -> Show Console -> Apply. From here, you'll need to actually run the program before the console displays, as @danorton said.

'The easiest way to get it started is to visit https://www.java.com/verify/ from the Firefox browser.'

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