System properties are not getting set in junit spring

[anispringian]

I am facing a problem in getting system property in Junit. I want to use

    System.setProperty("java.net.useSystemProxies","true");

in my project .In junit I am not getting proxies of system even after setting this property.

When I use this code in a standalone java program it works perfectly as expected , I get the proxy details.

I tried few solutions related to my problem which I found in this forum like setting system properties in MethodInvokingFactoryBean but still its not working.
Can any one please tell what the problem is ?

[cmontemu]

Hi, could you please post your test class code? (or a snippet at least)
I'm not able to realize the exact problem you're facing.

[anispringian]

Ok I am copying the code . I want to fetch the proxies in the system on which my web application will be deployed.So I used java system property that returns proxies on underlying system.

This is the snipped of test-applicationcontext.xml

 <bean id="systemPrereqs"
    class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
    <property name="targetObject" value="#{@systemProperties}" />
    <property name="targetMethod" value="putAll" />
    <property name="arguments">
        <!-- The new Properties -->
        <util:properties>
            <prop key="java.net.useSystemProxies">true</prop>
        </util:properties>
    </property>
</bean>

and this my code I want to test

Proxy proxy = (Proxy) ProxySelector.getDefault().select(new URI("http://www.yahoo.com/")).iterator().next();	
		InetSocketAddress addr = (InetSocketAddress) proxy.address();
		if (addr == null) {
			System.out.println("No Proxy");
		}else {
			proxyHost  = addr.getHostName();
			proxyPort  = addr.getPort();
			System.out.println("proxy hostname : "
			                +proxyHost );
			System.out.println("proxy port : "
			                + proxyPort);
		}

So when I ran above java code in a standalone program , I am able to see the proxy host and ports
But in junit they are appearing as null.