If you are trying to delete an old application, reinstall a corrupted software or just free up disk space on your Mac, removing all components of the program is important. These include the app, its preferences and support files, and sometimes other hidden files. Welcome to the Java Programming Forums. The professional, friendly Java community. 21,500 members and growing! The Java Programming Forums are a community of Java programmers from all around the World. Previous Next In this post, we will see how to detect OS which you are using. You can use System.getProperty(“os.name”) to get current OS name. Sometimes, we need to write logic based on OS, so we get use this logic to detect current OS. Java Program: I am using Mac os to run above program. When I ran above program, I got below output Previous Next.

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My goal is to bundle a JRE of JDK 1.8.0 ea (build 120 in this case) with my application files, so that the launcher which is generated by install4j will utilize this jre to run the app.

Now, when i'm trying to set the JRE in the media files options, i can't do the same as in the windows version with a windows JRE. In that case, i was just pointing to the directory the JRE resides in. As i see in the installer build log, it's expected to have a jre.tar.gz in the path that i set manually. So i packed the JRE subdir of the JDK into a jre.tar.gz file. Now, the installer is built without warnings or errors. But when i try to start the installer, it shows me an internal error: 'launch path is not accessible'.

This is strange because i expected an error to maybe come up when i'm launching the App, but not at this point already.

The opposite comes up when i'm using a JRE v1.7 to set as a bundled JRE in the media file. In this case, the installer starts and the program - of course - doesn't.

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How do i have to prepare my Java 8 JRE to ship with my app but not cause the installer to crash?

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1 Answer

Use

Project->Create a JRE Bundle

in the install4j IDE. It may not work with Java 8 though. We will support Java 8 JRE bundles when it is released.

Java Program For Mac

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