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Crossfire Map Editor Installation - Fedora Linux

How to Install OpenJDK Java Runtime Environment v1.6.0 under Fedora Linux

Table of Contents:

JRE Install

The OpenJDK Java Runtime Environment is installed or available by default under current versions of Fedora

  1. Launch or open a Terminal Window (Applications -> System Tools-> Terminal)

  2. To check that the JRE is properly installed, run the following command in the Terminal Window

    java -version

    You should see output similar to this:

    	$ java -version
java version "1.6.0_22"
    OpenJDK Runtime Environment (IcedTea6 1.10.2) (fedora-58.1.10.2.fc15-i386)
    OpenJDK Client VM (build 20.0-b11, mixed mode)

Launching the Editor

  1. Download CrossfireEditor.jar from the Crossfire Map Editor website
  2. Select Save File when prompted on what you want to do with the file and click OK (Note: Do not uncompress the file, leave it as a .jar file)
  3. Wait for the file to finish downloading
  4. Right click CrossfireEditor.jar and select Open Containing Folder
  5. This will open and show the Downloads folder, drag and drop the CrossfireEditor.jar file on to the folder labeled Home (on the left side of the screen)
  6. Now the CrossfireEditor.jar file is located in the Home folder

  7. Launch or open a Terminal Window (Applications -> System Tools-> Terminal)
  8. Launch the editor using the following command:

    java -jar CrossfireEditor.jar

    If you have enough memory, it is recommended to run the editor with a higher maximum memory size, like 128 Mb:

    java -jar -Xmx128m CrossfireEditor.jar

    (Note that in this way, the editor won't *always* use 128 Mb. It will only use that much when it is required.)

    For larger machines, explicitely requesting a client type VM can significantly speedup the map editor, so consider using -client

    java -jar -client CrossfireEditor.jar

Special Instructions

NOTE: If you recently upgraded your Java JRE or having problems launching the editor, or would like to specify a particular version of Java, run this command:

update-alternatives --config java

Follow the instructions that appear:
NOTE: actual output, contents and options will vary, you'll want to use: /usr/lib/jvm/jre-1.6.0-openjdk/bin/java

There are 2 programs which provide 'java'.

  Selection    Command
-----------------------------------------------
*+ 1           /usr/lib/jvm/jre-1.6.0-openjdk/bin/java
   2           /usr/lib/jvm/jre-1.5.0-gcj/bin/java

Enter to keep the current selection[+], or type selection number:

Then try launching the editor again.