source: general/prog/jdk/j2sdk-config.xml@ 50143e0

<sect2>
<title>Configuring <application>J2SDK</application></title>

<sect3><title>Configuration Information</title>

<para>We have two Java 2 <acronym>SDK</acronym>'s installed in
<filename>/opt/j2sdk</filename>. Decide on which one you
would like to use as the default. For example if you decide to use the source
compiled <application>J2SDK</application>, do the following:</para>

<screen><userinput><command>ln -nsf j2sdk-&j2sdk-src-version; /opt/j2sdk/j2sdk</command></userinput></screen>

<para>Add the following lines to your shell startup file (e.g.
<filename>/etc/profile</filename>).</para>

<screen><userinput>export JAVA_HOME=/opt/j2sdk/j2sdk
export PATH=$PATH:$JAVA_HOME/bin</userinput></screen>

<para>Add <filename>$JAVA_HOME/man</filename> to your
<envar>MANPATH</envar> variable or to
<filename>/etc/man.conf</filename></para>

<para>The <application>Java</application> plugin is in the directory 
<filename class="directory">$JAVA_HOME/jre/plugin/i?86/ns610/</filename>.
Make a symbolic link to the file in that directory from your plugins directory.
</para>

</sect3>

<sect3><title>Handling CLASSPATH</title>

<para>When compiling packages, the <envar>CLASSPATH</envar> environment variable
is used by JDK to locate classes at compile-time and run-time. It is tedious to
add all the classes used to the <envar>CLASSPATH</envar> manually. You may add
the following lines to your shell startup file to set <envar>CLASSPATH</envar>
automatically to include all JAR files in a specified directory, which in
the example below is <filename>/usr/lib/auto-java-classpath</filename>.</para>

<screen><userinput>AUTO_CLASSPATH_DIR=/usr/lib/auto-java-classpath
if [ -z $CLASSPATH ]
then
  CLASSPATH=.:$AUTO_CLASSPATH_DIR
else
  CLASSPATH=$CLASSPATH:.:$AUTO_CLASSPATH_DIR
fi
for i in $(ls $AUTO_CLASSPATH_DIR/*.jar 2>/dev/null)
do
  CLASSPATH=$CLASSPATH:$i
done</userinput></screen>

</sect3>

</sect2>