Guide: Setting up portable Java + beatoraja

[wcko87]

Setting up beatoraja with a portable version of Java means you don't need to install Java on your PC to run beatoraja.

Note: The easiest way to have a portable version of beatoraja is to set it up following these instructions: Setting up beatoraja without installing Java.

Setting it up manually

1. Download Liberica Java

Download Liberica JDK from: https://bell-sw.com/pages/downloads/

• Choose Full JRE, Download ZIP.
• See Java download options for more information on the differences between downloads.

Extract Liberica Java to some location. For this example we will use D:\jre-21.0.xxx\. This means you can find java.exe in D:\jre-21.0.xxx\bin\java.exe.

2. Edit beatoraja-config.bat

In your beatoraja folder, open beatoraja-config.bat in notepad. Look for this line:

java -Xms1g -Xmx4g -cp beatoraja.jar;ir/* bms.player.beatoraja.MainLoader

Replace the word java with the direct path of your java.exe from before, in quotes.

The line should look something like this:

"D:\jre-21.0.xxx\bin\java.exe" -Xms1g -Xmx4g -cp beatoraja.jar;ir/* bms.player.beatoraja.MainLoader

• Alternatively, you can use a relative path like "..\..\jre-21.0.xxx\bin\java.exe".
• A relative path is recommended if setting up beatoraja on portable media like a memory stick.

Explanation

If you type java into command prompt, it runs the default Java installation in your PC (If you have one set up). This is what the line java -Xms1g -Xmx4g -cp beatoraja.jar;ir/* bms.player.beatoraja.MainLoader in the config does.

So, instead of running java, we run the java.exe from our portable version of Java by specifying the path to the program directly.

Do note that all of this relies on running beatoraja through double-clicking beatoraja-config.bat.