How to use web start call JMS -- new

Hello folks :
This works okay when I run the clients from a command line,
but when I deploy with Java Web Start 1.2, I get a message saying "Ignoring com/sun/jms/util/jms.properties due to exception "java.lang.NullPointerException", I've put jms_client.properties into jar file and set the property "jms.properties" to value "jms_client.properties" in the jnlp file and set the classloader.
Anyone have any ideas?
Thank you ~~
Jovi
Ignoring com/sun/jms/util/jms.properties due to exception
java.lang.NullPointerException
java.lang.NullPointerException
at java.util.Hashtable.put(Hashtable.java:389)
at com.sun.jms.JMSInitialContext.<init>(JMSInitialContext.java:70)
at
com.sun.jms.client.InitialClientContext.<init>(InitialClientContext.java:55)
at
com.sun.jms.client.InitialClientContext.getInstance(InitialClientContext.jav
a:75)
at
com.sun.jms.ConnectionFactoryImpl.createConnection(ConnectionFactoryImpl.jav
a:261)
at
com.sun.jms.QueueConnectionFactoryImpl.createQueueConnection(QueueConnection
FactoryImpl.java:77)
at
com.sun.enterprise.jms.ConnectionFactoryWrapperStandalone.createQueueConnect
ion(ConnectionFactoryWrapperStandalone.java:50)
at QueueReceiverTest.<init>(QueueReceiverTest.java:52)
at QueueReceiverTest.main(QueueReceiverTest.java:180)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.sun.javaws.Launcher.executeApplication(Unknown Source)
at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
at com.sun.javaws.Launcher.continueLaunch(Unknown Source)
at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
at com.sun.javaws.Launcher.run(Unknown Source)
at java.lang.Thread.run(Thread.java:536)

Hello dietz :
Thank you for your reply so much!!
I use Sun RI 1.3 & java web start 1.2, I can't find the deployment.properties file in my server & client pc. I add deployment.javaws.secure.properties="jms.properties" in defult.properties, but it didn't work.
Then I try to write in my jnlp file is as below :
<property name="deployment.javaws.secure.properties" value="jms.properties"/>
<property name="jms.properties" value="jms_client.properties"/>
<j2se version="1.4+"/>
<jar href="j2ee.jar"/>
<jar href="Queue.jar" main="true"/>
</resources>
<application-desc main-class="QueueReceiverTest" />
</jnlp>
And I add some code
System.getProperty("deployment.javaws.secure.properties");
System.getProperty("jms.properties");
context = new InitialContext();
But error message still shows the same.
Can you give me a help again ?
Thank you a lot !!
Jovi

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