JAR, JNI and libraries

[Marcelo]

How Can i include a library inside a JAr file ?
I have a jar file like this:
META-INF/
META-INF/MANIFEST.MF
Prompt.class
libPrompt.so

and the System.loadLibrary("Prompt");

but I get the error:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no Prompt in
java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1682)
at java.lang.Runtime.loadLibrary0(Runtime.java:822)
at java.lang.System.loadLibrary(System.java:992)
at Prompt.<clinit>(Prompt.java:14)


help please

Marcelo

 

[Gordon Beaton]

How Can i include a library inside a JAr file ?
I have a jar file like this:

META-INF/
META-INF/MANIFEST.MF
Prompt.class
libPrompt.so

and the System.loadLibrary("Prompt");

AFAIK your only option (someone please correct me otherwise) is to
copy the file from the jar to the local file system before attempting
to load it.

/gordon

 

[Roedy Green]

META-INF/
META-INF/MANIFEST.MF
Prompt.class
libPrompt.so

and the System.loadLibrary("Prompt");

I have done it with JAWS, but I don't know if it is legal otherwise.
With JAWS it is quite slick. You can put in BOTH a DLL for windows and
a libxxx.so for Linux and JAWS will load the correct one for the
platform. You tell JAWS what you have in a resource statement in your
JNLP file.

I would put Prompt in a package. libPrompt.so would NOT go in one.