JNI loadlibrary choosing dll or so

[Marcelo]

Dear programmers,

I am having some trouble in order to determine the OS used by the JVM. I would
like to load some libraries but i don't know the system that is running it.

I would like to do something like:

static{
if(Linux)
System.loadLibrary("libHello.so");
if(Windows)
System.loadLibrary("Hello.dll");
}

Can you help me, please?

thanks a lot,

Marcelo

 

[Danno]

Too much work

http://java.sun.com/j2se/1.4.2/docs/guide/jni/spec/design.html#wp679

package pkg;
class Cls {
native double f(int i, String s);
static {
System.loadLibrary("pkg_Cls");
}
}

Java will convert it automatically depending on the system. You may
have to do something else if you have code specific to Unix based OSs.

 

[Gordon Beaton]

I would like to do something like:

static{
if(Linux)
System.loadLibrary("libHello.so");
if(Windows)
System.loadLibrary("Hello.dll");
}

This will fail in both cases. Juse specify the base name of the
library, i.e.:

System.loadLibrary("Hello");

The JVM will load "libHello.so" or "Hello.dll", whichever is
appropriate for the platform.

/gordon