Slick Forums

I finally managed to resolve the problem. I used some unsigned jars and some of them I signed. There were also some misspelling in the jar names. Now I have another problem.
I get this error:
java.security.AccessControlException: access denied ("java.io.FilePermission" "location-mapping.rdf" "read")

looks like you are using a File to read from the file system when you should be using an InputStream.

What does the code look like where you are trying to load "location-mapping.rdf" ?

You must use getResources(AsStream) to access files on the classpath (eg inside JAR files). You can't use File, FileInputStream, FileReader, RandomAccessFile etc.

I finally managed to resolve this. I had a lot of jars and some of them were not signed so eventually I resigned all my jars and now it is working.
Now I would have another question.
Is it possible to save state (so the user can afterwards loads the saved state) in an applet?
If not is there a workaround for this?

If you are signing all your jars you have full access to the file system so saving and loading save files should be the same as applications.

Is there any working example code of saving the game state and loading it again?
I saw someone suggested Xstream lib for saving game state.
Isn't this possible with the use of just the Slick library?

you could have a look at Slick's class and if it is sufficient for your needs.

Thank very much for all you answers. I have one more question.
Is it possible to send parameters to the applet?
I have a jsp login page and the user will have access to the html (with applet inside) only if it logs in.
Could I access in my slick game (that runs in the applet) the user login credentials?
I have an RPG game and I would like to know which user files I should load from the database.

Wild cards were introduced from Java 6. Class path entries can contain the basename wildcard character *, which is considered equivalent to specifying a list of all the files in the directory with the extension .jar or .JAR.

java -cp "lib/*" -jar %MAINJAR%

If you need only specific jars, you will need to add them individually. The classpath string does not accept generic wildcards like Jar*, .jar, hiber etc.

Example

The following entry does not work:

java -cp "Halo.jar;lib/*.jar" ni.package.MainClass

Correct entry is :

java -cp "Halo.jar;lib/*" ni.package.MainClass

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John