Unable to launch the application Java Mac I'd like to keep macOS's system Java for various tasks and applications such as Mathematica which requires on Java 6. It's more or less consistent with Java 6 (Java Language and Virtual Machine Specifications version SE 6). Issue: Recent security changes released by Apple make using the Java Webstart option on Mac OSX Mountain Lion macOS has its own system Java which as of macOS 10.9.2 is at version 1.6.0_65. Troubleshooting MAC OS X Java Web Start, Troubleshooting MAC OS X Java Web Start. However, the system will not replace the current JRE with a lower version. When you install the JDK, it also installs the JRE. Administrator privileges are required to install the JDK and JRE on macOS. In macOS, how to run a JNLP file with OpenJDK 8?, IcedTea-Web is a project that: provides a Free Software web browser plugin running applets written in the Java programming language and an Installing the JDK and JRE on macOS is performed on a systemwide basis for all users. No JRE 1.8 virtual machine on Mac OS Yosemite. How to allow JAVA Web Start application to access file system on, With macOS Catalina we are experiencing the following problem: opening Java Web Start applications behaves differently when application How can I start PostgreSQL server on Mac OS X? 6.