How to convert const char* to char*

your_char_pointer = const_cast<char*>your_const_char_pointer

your security settings have blocked a self-signed application from running with an out-of-date or expired version of Java

1. Go to control panel an open Java
2. Select the 'Security' tab and move the slider to 'Medium'
3. Apply and restart your browser

Hopefully you should be good.

Note: Use this only if you do not want to upgrade your Java