Use JRE lib/ext classes in the application

[jehanzeb.qayyum]

Hi,

I have some libraries/jars inside JRE's lib/ext folder that i want to use in my application deployed in JBOSS AS 7.1.1 Final. These libraries are under arbitrary package i.e. com.abc.asd. I tried to use the classes present in those jars but i get ClassNotFoundException. How do i fix this under JBOSS 7 modular architecture?

Thanks

[guinotphil]

Hello,

You need to define a new module like this:

<module xmlns="urn:jboss:module:1.1" name="yourmodule">

    <dependencies>

        <system export="true">

            <paths>

                <path name="com/abc"/>

                <path name="com/abc/asd"/>

            </paths>

        </system>

    </dependencies>

</module>

And then add a dependency to this module on your application.

You can also directly add the system dependencies to your jboss-deployment-structure.xml

[wdfink]

I would pack it into one or even more modules and set a dependency in the MANIFEST (or jboss-deployment-structure) of your EAR.

The JRE lib is not included in the JBoss classpath.

[guinotphil]

On my side, I add to add some lib to the JRE classpath because I couldn't make them work any other way (things such as Charset Provider, etc...)

In standalone.sh, it seemed quite difficul and dangerous to use java -cp instead of java -jar to load jboss-modules, so I did it that way:

# Classpath for system libraries that can not be loaded as modules

LIB_EXT="$JAVA_HOME/jre/lib/ext:/path/to/my/other/libs"

if [ "x$LIB_EXT" != "x" ]; then

  JAVA_OPTS="$JAVA_OPTS -Djava.ext.dirs=$LIB_EXT"

fi

(my JAVA_HOME refers to a JDK installation)

[jehanzeb.qayyum]

Thanks, How would i add all subpackages in a module? Instead of writing each in module.xml. e.g. is there any syntax like <path name="com/abc/*"/>.

Because there are alot of jars and packages.