CODEWITHSUNDEEP
javalwjgl
gopro_2027
gopro_2027

Reputation: 103

Java How to set librarypath and native path for a jar file

How do you set the librarypath and the native path for a jar file? I have been using jarsplice/jarmatey but I don't want to anymore. I have tried 

System.setProperty("java.library.path", gameFolder+"/lib/jars" + File.separator);
System.setProperty("org.lwjgl.librarypath", gameFolder+"/lib/natives" + File.separator);

Where gamefolder if the games directory where the jar site and also

System.setProperty("java.library.path", "/lib/jars" + File.separator);
System.setProperty("org.lwjgl.librarypath", "/lib/natives" + File.separator);

and the two without file separator either and those don't work. I have also tried, since when my game gets ran by the launcher it executes the cmd line to run it, adding in the -D... to th cmd arguments like this:

String cmd = "java -jar "+gameFolder+"/progame.jar -Djava.library.path=/lib/jars -Dorg.lwjgl.librarypath=/lib/natives";
Runtime.getRuntime().exec(cmd);

and same with

String cmd = "java -jar "+gameFolder+"/progame.jar -Djava.library.path="+gameFolder+"/lib/jars -Dorg.lwjgl.librarypath="+gameFolder+"/lib/natives";
Runtime.getRuntime().exec(cmd);

And none of those work. Any help? The files are in the path and i have checked to see if the paths exists through the code and they do and whatever but I am sol in my eyes.

Upvotes: 0

Views: 2968

Answers (2)

user2819096
user2819096

Reputation: 71

this is how I load the .jar outside of my environment 

public static void load()
{
    String fileNatives = OperatingSystem.getOSforLWJGLNatives();
    System.setProperty("org.lwjgl.librarypath", System.getProperty("user.dir") + File.separator + "native" + File.separator + fileNatives);
}

and for checking what operating system the user is on 

class OperatingSystem {

private static String system = System.getProperty("os.name").toLowerCase();

public static String getOSforLWJGLNatives()
{
    if(system.startsWith("win"))
    {
        return "windows";
    }

    if(system.startsWith("mac"))
    {
        return "macosx";
    }

    if(system.startsWith("lin"))
    {
        return "linux";
    }

    if(system.startsWith("sol"))
    {
        return "solaris";
    }
    return "unknown";
}

}

Upvotes: 1

Yahya
Yahya

Reputation: 511

did you check if your gameFolder path contains a space caracter ? if so you should surround it with a double quote like 

String cmd = "java -jar " +" \"" +gameFolder+"/progame.jar" +"\"" +" -Djava.library.path="+"\"" +gameFolder+"/lib/jars" +"\"" + " -Dorg.lwjgl.librarypath="+"\"" +gameFolder+"/lib/natives"+"\"";

Upvotes: 0

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