Apple stops the execution of the application with the following message.
Unfortunately it is not possible to give the permission to run the application by a single click.
You have to start the "System Preferences" on your Apple computer and click on the "Security & Privacy" icon:
The last application is shown in the lower part and you can click on "Open Anyway" to start it.
If you have the needed rights on your system you can also unlock and give the permission for any application to run.
In the next message box you are asked again, if you are really sure to run the risky application.
Don't be afraid and click on "Open". Java will tell you the risks again and get the approval from you to run the application.