FULL PRODUCT VERSION :
java version "1.7.0_45"
Java(TM) SE Runtime Environment (build 1.7.0_45-b18)
Java HotSpot(TM) Client VM (build 24.45-b08, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
With self-signed webstart abplications random property values in the jnlp file can cause an IllegalArgumentException during jnlp parsing, e.g:
       <property name="jnlp.content1Name" value="original.jpg"/>
works without problems, while
       <property name="jnlp.content1Name" value="Theme - Macguyver.mp3"/>
causes an Exception.


REGRESSION. Last worked in version 7u40

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Download an jnlp file with certain values.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
jawaws application starts
ACTUAL -
Exception

ERROR MESSAGES/STACK TRACES THAT OCCUR :
InvalidArgumentException[ Ung??ltige Argumente angegeben: { }]
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main.access$000(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
Example Jnlp file that causes this error:
<jnlp
  spec="1.5+"
  codebase="http://10.1.10.50/px-static/webstart/download">
  <information>
    <title>Media Download</title>
    <vendor>Como GmbH</vendor>
    <description>Download Application</description>
    <description kind="short">Download of multiple files into the selected folder</description>
    <icon width="32" height="32" href="logo_32x32.png"/>
    <icon width="48" height="48" href="logo_48x48.png"/>
    <icon width="64" height="64" href="logo_64x64.png"/>
    <icon width="96" height="96" href="logo_96x96.png"/>
    <icon kind="splash" href="splash.jpg"/>
  </information>
  <security>
      <all-permissions/>
  </security>
  <resources>
    <property name="jnlp.packEnabled" value="true"/>
    <j2se version="1.6+" java-vm-args="-Xss1M"/>
    <property name="jnlp.sessionId" value="D4634A5C20E9166B14818B6A62415BE5"/>
    <property name="jnlp.JSESSIONIDSSO" value="4655819DE1FD0C2530EA282793FA66BD"/>
    <property name="jnlp.serviceHost" value="10.1.10.50"/>
    <property name="jnlp.webProtocol" value="http://" />
    <property name="jnlp.serverPath" value="/px-core-web/protected/webstart/structuredDownload.action" />
    <property name="jnlp.mode" value="" />
    <property name="jnlp.debugLevel" value="ALL"/>
    <property name="jnlp.userLocale" value="en"/>
    <property name="jnlp.projectId" value="40c3af2102b5f77b57-7ffd"/>
    <property name="jnlp.containerId" value=""/>
    <property name="jnlp.deleteContainer" value=""/>
    
    
       <property name="jnlp.content1Id" value="8a818ab2410cd4d301410d3b85cd0005"/>
       <property name="jnlp.content1Name" value="Theme - Macguyver.mp3"/>
       <property name="jnlp.content1Version" value="1.2"/>
       <property name="jnlp.content1Size" value="496036.0"/>
       <property name="jnlp.content1PreviewSize" value="496036.0"/>
       <property name="jnlp.content1PreviewName" value="Theme - Macguyver.mp3"/>
       <property name="jnlp.content1AccessRights" value="3"/>
       <property name="jnlp.content1Storage" value="INTERNAL"/>
       <property name="jnlp.content1Video" value="false"/>
          
    

    <jar href="MediaDownload.jar" main="true" />
    

  </resources>
  <application-desc main-class="de.como.transfer.download.MediaDownload"/>
</jnlp>
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Someone noticed that reordeing of properties can help (https://forums.oracle.com/thread/2591715) but this is not an option for generated jnlp files.