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Java mac os x el capitan install#
Java mac os x el capitan upgrade#
Java mac os x el capitan windows#

Unfortunately, El Capitan has some new java-related issues. If you have difficulties, please post on the Image.sc Forum.Īt any time, you can verify which Javas are installed on your system using this script. However, ImageJ should work OK with Java 8.

Java mac os x el capitan install#

It is unfortunately no longer feasible to install Apple Java 6 on current versions of macOS. See also the Frequently Asked Questions page. this JDK bug discussing the issue.Īs a workaround, you can check "Use JFileChooser to open/save" in the Edit › Options › Input/Output.

On macOS 10.11 "El Capitan" and later, the operating system no longer includes a title bar for file chooser dialogs. If you find a solution that works, allowing ImageJ to run fast in the background, please tell us on the forum!) (There are also various ways to disable App Nap on your machine, but we have not had much success with them. Leave ImageJ in the foreground while it is processing to avoid this issue. On recent versions of OS X-10.9 "Mavericks" and later-there is an "App Nap" feature which dramatically slows down applications that are not in the foreground. Make sure you are using the latest version of Java 8, as well as the latest version of ImageJ.

Java mac os x el capitan windows#

There is a bug in Java 8 on MacOS which causes the application to drastically slow down as many windows are opened and closed over time.

Java mac os x el capitan upgrade#

You should either upgrade to the latest version of Java 8, or revert to Java 6 (see "Frequently Asked Questions" below). On OS X, older versions of Java 8 (prior to 1.8.0_45)-as well as all versions of Java 7 (including 1.7.0_80)-are extremely slow at displaying images. There are several reasons ImageJ can run slowly on macOS. ImageJ becomes very slow after running for a while See also the Java 8 page for OS-X-specific issues.

2.2 No title bar in file chooser dialogs.

2.1 ImageJ becomes very slow after running for a while.

This was the stupidest thing Oracle could do with Java. Oracle specifically BROKE the Java sandbox, allowing Java to interact directly with computer systems. Why is Java over the Internet now so dangerous? Thank Oracle, who obtained Java when they bought Sun Microsystems. Check up on their reputation and verify they are NOT Trojans. So avoid running mysterious Java apps you know nothing about. Trojan horse Java applications are possible. Just be sure you run Java apps, off the Internet, from reliable developers. NOTE: Running Java applications off the Internet is not typically a problem. But for the sake of simplicity and the ability to reinstate the Java Plug-In whenever you may want to actually use it on the Internet, I'd leave everything else in place. There are other Java bits and pieces you could trash.

Java now cannot run in them over the Internet, which is where Java is particularly dangerous. I have them in a folder labeled "Internet Plug-ins (disabled)" inside the Library folder.ģ) QUIT and restart all your web browsers.

I advise that you store these files somewhere, just in case you want to use them later for some odd purpose. Yes, that includes Apple's own alias file "ugin". A quick and simple way to DISABLE running JAVA over the Internet (if you have Admin privileges):Ģ) Remove from this directory everything listed as 'Java'.