mac os 10.8 minecraft launcher could not open

In the case of the Java Sound Demo, the file JavaSoundDemo.jar is executable. Because Mac OS X ships with the Jar Launcher application, the end user needs only double click on the jar file and the application will launch. To make the jar file executable, the manifest must include the name of the Main class file. See 'JDK 8 and JRE 8 Installation Start Here' for general information about installing JDK 8 and JRE 8. See 'OS X Platform Install FAQ' for general information about installing JDK 8 on OS X. System RequirementsĪny Intel-based computer running OS X 10.8 (Mountain Lion) or later. Note that installing the JDK on OS X is performed on a system wide basis, for all users, and administrator privileges are required. You cannot install Java for a single user. Installing the JDK also installs the JRE. The one exception is that the system will not replace the current JRE with a lower version. To install a lower version of the JRE, first uninstall the current version as described in 'Uninstalling the JRE'. When you install the Java Development Kit (JDK), the associated Java Runtime Environment (JRE) is installed at the same time.

Mac os 10.8 minecraft launcher could not open