jnlp - Java - How to get permission in Java Web Start -

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hi managed create jar , .jnlp files java application running trouble when runs. launches okay java web start think need when run it doesn't ask permission access hd file i/o.

would appreciate , advise know permission rights i.e. have have classes not sure. error message in java web start below.

exception in thread "awt-eventqueue-0" java.security.accesscontrolexception:    access denied (java.io.filepermission stockdatabase;stocks.dat read)     @ java.security.accesscontrolcontext.checkpermission(unknown source)     @ java.security.accesscontroller.checkpermission(unknown source)     @ java.lang.securitymanager.checkpermission(unknown source)     @ java.lang.securitymanager.checkread(unknown source)     @ java.io.file.exists(unknown source)     @ stockcodedatabase.<init>(optradersa.java:782)     @ optradersa.actionperformed(optradersa.java:136)     @ javax.swing.abstractbutton.fireactionperformed(unknown source)     @ javax.swing.abstractbutton$handler.actionperformed(unknown source)     @ javax.swing.defaultbuttonmodel.fireactionperformed(unknown source)     @ javax.swing.defaultbuttonmodel.setpressed(unknown source)     @ javax.swing.abstractbutton.doclick(unknown source)     @ javax.swing.plaf.basic.basicmenuitemui.doclick(unknown source)     @ javax.swing.plaf.basic.basicmenuitemui$handler.mousereleased(unkno

you need sign jnlp file , configure <security> element, discussed here.


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