In 6u10, if a JNLP-Applet specifies <j2se version="1.4.2*" ... > and has <property name="aaa" value="hello world"/>, the following exception will be thrown:
java.lang.NoSuchMethodError:
java.lang.StringBuffer.<init>(Ljava/lang/CharSequence;)V
        at com.sun.deploy.util.StringQuoteUtil.quoteIfNeeded(Unknown Source)
        at com.sun.deploy.util.StringQuoteUtil.quoteIfNeeded(Unknown Source)
        at com.sun.deploy.util.Property.toString(Unknown Source)
        at com.sun.deploy.util.JVMParameters$ArgumentSet.addTo(Unknown Source)
        at com.sun.deploy.util.JVMParameters.getCommandLineArguments(Unknown Source)
        at com.sun.deploy.util.JVMParameters.getCommandLineArgumentsAsString(Unknown Source)
        at com.sun.javaws.jnl.DefaultMatchJRE.endTraversal(Unknown Source)

If launching the app through javaws, a javaw process will be left as zombie, no exception or error dialog is shown.

This issue is not reproducible if trying to load 1.5* or when there is no space between the system property value. This issue is a regression from 6u7. In addition, calling javaws from 1.4.2_18 to load the JNLP files directly does not have any problem.

To reproduce with JNLP-Applet:
- Stage the Clock.jnlp, jnlp-applet.html from attachment, and the Clock applet demo from JDK.
- Load jnlp-applet.html from a browser with the new Plug-In.
(see comments for quick test)

To reproduce with Java Web Start that leaves zombie javaw process:
Run the draw.jnlp in attachment with javaws from 6u10.
(see comments for quick test)