Code conversion

Question

hi
i am working in a team that maintains and develops a web based app.
the current way of starting off the app is to go into a web page which loads an applet and runs the app.
i was asked to take that page, and change it so that the java web start will load the applet.
i wrote the jnlp code for it and it seems to work to some point, but because i am not too familiar with the source code and i am new to web start, the applet loads but gets a null pointer exception. i suspect that i didn't write the jnlp file properly.
this is the old code (in html):
<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93">
< WIDTH = "300" HEIGHT = "150"><XMP>
<APPLET ARCHIVE="erp_ws.jar,plugins_ws.jar" CODE = "erp.applet.impl.ERPApplet.class"></XMP>
<PARAM NAME = ARCHIVE VALUE = "erp_ws.jar,plugins_ws.jar,swt_ws.jar" >
<PARAM NAME = CODE VALUE = "erp.applet.impl.ERPApplet" >
<PARAM NAME = "type" VALUE = "application/x-java-applet;version=1.4.0">
<PARAM NAME = "loginservice" VALUE = "//182.3.1.196:4000/erplogin">
</APPLET>
</OBJECT>
and this is the jnlp code :
<?xml version="1.0" encoding="utf-8"?>
<!-- JNLP File -->
<jnlp spec="1.0" codebase="http://mns-kesem" href="erp.jnlp">
     <information>
          <title>MNS-KESEM</title>
          <vendor>MNS-KESEM Team</vendor>
          <homepage href="index_tmp.htm"/>
          <description>MNS-Kesem Application</description>
          <description kind="short">BAHAD 20's ERP System</description>
          <icon href="kesem.ico"/>
          <icon kind="splash" href="kesem_splash.jpg"/>
     </information>
     <security>
          <all-permissions/>
     </security>
     <resources>
          <j2se version="1.4"/>
          <jar href="erp_ws.jar"/>
          <jar href="plugins_ws.jar"/>
     </resources>
     <applet-desc documentBase="http://mns-kesem" name="ERPApplet" main-class="erp.applet.impl.ERPApplet" width="300" height="150">
          <param name="ARCHIVE" value="erp_ws.jar,plugins_ws.jar,swt_ws.jar"/>
          <param name="CODE" value="erp.applet.impl.ERPApplet"/>
          <param name="TYPE" value="application/x-java-applet;version=1.4.0"/>
          <param name="LOGINSERVICE" value="\\182.3.1.196:4000\erplogin"/>
     </applet-desc>
</jnlp>
could anyone tell me what havn't i written well?

Answer 1

AFAIR, there is an option in the Java control
panel, to automatically open the console on
launch of web-start applications (or JWS
applets, or browser applets).
I have it enabled (as irritating as it is is always
seeing a console pop-up) since it is invaluable
for both web-start and applet development.