How to run JavaWS command with JNLP file in verbose mode? I want to see more details on how JavaWS command works.

If you want to see more details on JavaWS command works, you can run JavaWS command in verbose mode as shown below:

fyicenter> javaws -verbose dynamictree.jnlp

You see a message window showing with the following detailed information:

Launching: \fyicenter\jre-1.8.0\bin\javaw.exe

\fyicenter\jre-1.8.0\bin\javaw.exe
   -classpath \fyicenter\jre-1.8.0\lib\deploy.jar
   -Djava.security.policy=file:\fyicenter\jre-1.8.0\lib\security\javaws.policy
   -DtrustProxy=true 
   -Xverify:remote 
   -Djnlpx.home=\fyicenter\jre-1.8.0\bin
   -Djavax.security.Manager 
   -Djnlpx.origFilenameArg=dynamictree.jnlp
   -Djnlpx.remove=true
   -Dsun.awt.warmup=true
   -Xbootclasspath/a:\fyicenter\jre-1.8.0\lib\javaws.jar;\fyicenter\jre-1.8.0\lib\deploy.jar;
      \fyicenter\jre-1.8.0\lib\plugin.jar
   -Djnlpx.splashport=55152
   -Djnlpx.jvm=\fyicenter\jre-1.8.0\bin\javaw.exe
   com.sun.javaws.Main

The above information tells you that JavaWS command is running the \fyicenter\jre-1.8.0\bin\javaw.exe program with a long list of options.

2. Click OK to close the message window. You see a new window the demo application showing a tree of nodes.

⇒ "javaws -viewer" - View Cached Java Applications

⇐ DynamicTreeDemo.jar - JavaWS and JNLP Demo

⇑ Introduction of JavaWS and JNLP

⇑⇑ FAQ for JavaWS (Java Web Start)