This page last changed on Jun 05, 2008 by rhartono.
This page is part of the Confluence Installation Guide.
Mac users can ignore these instructions, because OS X comes with a Java Development Kit.
 | About Java
Confluence needs JDK 1.4 or newer to be installed on your computer.
- A JRE (Java Runtime Environment) is not enough.
- JDK 6 is the preferred platform, because it is faster and more reliable.
- JDK 1.4 or 1.5 are fine for now.
- Advance notice: Java 1.4 will be deprecated in a future release. Confluence 2.8 will be the last version that supports Java 1.4.
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- If you are not sure whether you have JDK installed correctly, please confirm by doing the following:
- Open a command prompt.
- On Windows: Open your 'Start' menu and select 'Run', then type cmd and click 'OK'.
- Type the following in the command prompt and then press Enter:
- On Windows: echo %JAVA_HOME%
- On Unix: echo $JAVA_HOME
- View the result:
- If a line is displayed such as C:\Progra~1\Java\jdk1.5.0_06, please check that the letters just before the final numbers are 'jdk'. If you see those letters, the JDK is installed.
- If nothing is displayed, or you do not see 'jdk' plus some numbers, the JDK is not installed.
- If you have installed a non-Sun JDK, you need to install the Sun JSSE package now.
- If you need to install the JDK, follow these instructions:
- Go to the Java Sun download page.
- Download the version entitled 'JDK 6 Update XX', where 'XX' stands for some number. (Sun will provide the latest version on that page.)
- When the download has finished, run the Java installer. At one point, you will be asked to choose a directory to install to. Copy or write this directory down for use later.
- On Windows: Please follow these instructions to set your JAVA_HOME environment variable to the directory you where you have just installed the JDK. By default, this directory is under C:\Program Files\Java.
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