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How to add system property equivalent to java -D in Ant

I need to set java -Djava.library.path=/some/path and I want to do it when I am running my ant script, building my jar.

I think I have to use

<sysproperty key="java.library.path" value="/some/path"/>

but it doesnt work. I cannot make the syntax work. The only thing I have Googled and found is sysproperty in conjunction with 

 <java classname>

but that doesnt make any sense to me.

I am not sure if this is relevant, but I am using ant to create a ear and deploying this ear in JBoss.

Solution

  • Here is an example Ant target run that executes the example.jar and passes a system property with key="java.library.path" and value="/some/path":

    <target name="run">
    <java jar="example.jar" fork="true">
        <jvmarg value="-Djava.library.path=/some/path"/>
    </java>
</target>