The customer was running 1.5.0_15, it was working fine as follows:

**** version.xml ****
<?xml version="1.0" encoding="UTF-8"?>
<jnlp-versions>
<resource>
 <pattern>
  <name>client.jar</name>
  <version-id>1.02.001dbg</version-id>
 </pattern>
 <file>client-1_02_001dbg.jar</file>
</resource>
...
</jnlp-versions>

After they upgrade to 1.5.0_17, they have to change the value of <file> same as <name> tag

>**** version.xml ****
<?xml version="1.0" encoding="UTF-8"?>
<jnlp-versions>
<resource>
 <pattern>
  <name>client.jar</name>
  <version-id>1.02.001dbg</version-id>
 </pattern>
 <file>client.jar</file>
</resource>
....
</jnlp-versions>

Thanks,

Herrick