Ant script to stop/start JBOSS server

I am using the following ant script to stop JBOSS server
<property name="jboss_host" value="SPCONCPC1021119"/>
<property name="JBOSS_HOME" value="/jboss-eap-4.3/jboss-as"/>
<property name="JBOSS_PORT" value="8086"/>
<target name="jboss_shutdown">
<property name="jboss_host" value="SPCONCPC1021119"/>
<java dir="${JBOSS_HOME}/server/default/conf"
classname="org.jboss.Shutdown" fork="true">
<arg line="@

{jboss_host} @{JBOSS_PORT}"/>
<classpath>
<pathelement path="${JBOSS_HOME}/bin/shutdown.jar"/>
</classpath>
</java>
</target>

However, on running the above ant script. I get the following exception


jboss_shutdown:
[java] shutdown: unused non-option argument: @{jboss_host}

[java] shutdown: unused non-option argument: @

{JBOSS_PORT}

[java] Exception in thread "Main Thread" javax.naming.CommunicationExcepti
n: Could not obtain connection to any of these urls: localhost:1099 [Root excep
ion is javax.naming.CommunicationException: Failed to connect to server localho
t:1099 [Root exception is javax.naming.ServiceUnavailableException: Failed to c
nnect to server localhost:1099 [Root exception is java.net.ConnectException: Co
nection refused: connect]]]
[java] at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java
1416)
[java] at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:5
6)
[java] at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:5
9)
[java] at javax.naming.InitialContext.lookup(InitialContext.java:351)
[java] at org.jboss.Shutdown.main(Shutdown.java:214)
[java] Caused by: javax.naming.CommunicationException: Failed to connect t
server localhost:1099 [Root exception is javax.naming.ServiceUnavailableExcept
on: Failed to connect to server localhost:1099 [Root exception is java.net.Conn
ctException: Connection refused: connect]]
[java] at org.jnp.interfaces.NamingContext.getServer(NamingContext.jav
:269)
[java] at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java
1387)
[java] ... 4 more
[java] Caused by: javax.naming.ServiceUnavailableException: Failed to conn
ct to server localhost:1099 [Root exception is java.net.ConnectException: Conne
tion refused: connect]
[java] at org.jnp.interfaces.NamingContext.getServer(NamingContext.jav
:243)
[java] ... 5 more
[java] Caused by: java.net.ConnectException: Connection refused: connect
[java] at java.net.PlainSocketImpl.socketConnect(Native Method)
[java] at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
[java] at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.ja
a:195)
[java] at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
[java] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
[java] at java.net.Socket.connect(Socket.java:519)
[java] at java.net.Socket.connect(Socket.java:469)
[java] at java.net.Socket.<init>(Socket.java:366)
[java] at java.net.Socket.<init>(Socket.java:266)
[java] at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSock
tFactory.java:84)
[java] at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSock
tFactory.java:77)
[java] at org.jnp.interfaces.NamingContext.getServer(NamingContext.jav
:239)
[java] ... 5 more
[java] Java Result: 1

BUILD SUCCESSFUL

Can,please someone tell me what am I doing wrong here ?

Thanks