How Applet pass stack to JNI ?

Question

I'm preparing a project with J2EE, The client need to call C++ Dll (hardware drive), for some reason the App need pass stack to the C++ Dll.
When I write the Java Application and set the VM parameters: "-Xss4m" the program run OK!. If do not set the VM parameters, the program will crash for stack overflow.
Then I write the Java Applet (same function) and also in the IDE set the VM Parameters: "-Xss4m". Run in the AppletViewer the function also OK,
When I put the applet into Webpage and run at client with Java Plug-in(also set the Java Runtime parameters :"-Xss4m" in the Java Plug-in control panel) When the applet call the C++ Dll the brower will exit. I think it is the stack overflow problem.
(The Jave Plug-in vertion is: 1.3.1-01)
Pls give me advise!

Answer 1

Hi, i think that you are facing a security problem.
Normally an applet is not allowed to access any file or system-routine.
2 ways arround:
1) trusted Applet (complex, espically for the user)
2) pass the call to the Server-side (depends on what you want to do if this is possible)
Hope this helps.
Greetings
Michael
PS.. I'm not quite sure if you can start the jvm of the Browser with -Xss, try to avoid it.