5.2 Installing JDK for JBoss

1. Select Start > Control Panel > System.

2. Click the Advanced tab and click Environment Variables.

3. In the New System Variable area, click New.

4. In the New System Variable box, type JAVA_HOME as the variable name and enter the directory where you installed the Java JDK as the value. This directory contains the /bin subdirectory. For example, type the following path:

   C:\Program Files\Java\jdk1.6.0_31

1. Select Start > Control Panel > System.

2. Click the Advanced tab and click Environment Variables.

3. In the System Variables area, select Path and click Edit.

4. Add the following text at the beginning of the value:

   %JAVA_HOME%\bin;

• It is recommended that you set the JAVA_HOME variable for Bourne and Bash as shown in the following example:

  JAVA_HOME=/usr/java 
  export JAVA_HOME

• It is recommended that you set the PATH variable for Bourne and Bash as shown in the following example:

  PATH=$JAVA_HOME/bin:$PATH 
  export PATH

(Optional) Open a command prompt and run the following command:

java -version

You should receive a response that begins with the Java version you have installed (for example, 1.6.0_31).

For JVM to run in 64-bit mode, add the -D64 JVM argument to the following line in the [appserver root]/bin/run.conf file.

JAVA_OPTS="$JAVA_OPTS -Xms1024m -Xmx2048m -XX:MaxPermSize=512m -Dorg.jboss.resolver.warning=true -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Dsun.lang.ClassLoader.allowArraySyntax=true"