[Swig-user] Java Library problem

[Ricardo O. <n3...@ho...>]

Hi,

 

I'm having a problem with loading a library after using swig.

Putting it quite simply:

- If I convert the cpp code using "swig -c++ -java myfile.i", my main code is able to access the library perfectly and everything is executed properly:

 

-- clip - main.java

public class main {
   public static void main(String argv[]) {
     System.loadLibrary("nipper_wrapper");
     nipper_wrapper.start_nipper(2,argv);
   }
}
-- clip - main.java

 

Command line: java main

 

- If I add the "-package" parameter (e.g.: "swig -c++ -java -package com myfile.i") and add "package com;" to the top of my main.java file, when executing (java com.main), I get the following result:

 

Exception in thread "main" java.lang.UnsatisfiedLinkError: com.nipper_wrapperJNI.start_nipper(I[Ljava/lang/String;)I
        at com.nipper_wrapperJNI.start_nipper(Native Method)
        at com.nipper_wrapper.start_nipper(nipper_wrapper.java:18)
        at com.main.main(main.java:6)

 

-- clip -- nipper_wrapperJNI

/* ----------------------------------------------------------------------------
 * This file was automatically generated by SWIG (http://www.swig.org).
 * Version: 1.3.21
 *
 * Do not make changes to this file unless you know what you are doing--modify
 * the SWIG interface file instead.
 * ----------------------------------------------------------------------------- */


class nipper_wrapperJNI {

....
  public final static native int start_nipper(int jarg1, String[] jarg2);
}

-- clip -- nipper_wrapperJNI

 

So, in summary, the library is getting loaded, but for some reason, when the java code is in a package, and I try to access the library, I get this weird error, as if it was mapping the java package to the c++ library...

 

Java version:

 

java version "1.6.0_11"
Java(TM) SE Runtime Environment (build 1.6.0_11-b03)
Java HotSpot(TM) Client VM (build 11.0-b16, mixed mode, sharing)

 

Swig version:

 

SWIG Version 1.3.21
Copyright (c) 1995-1998
University of Utah and the Regents of the University of California
Copyright (c) 1998-2003
University of Chicago
Compiled with g++ [i686-redhat-linux-gnu]

 

I appreciate any help.

Thanks,

Ricardo.

 

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