[gdal-dev] UnsatisfiedLinkError with gdal14

[Tamas Szekeres]

Hi,

While I'm not sure about the layout of the files throughout the application,
I may suppose some of the dependent libraries are not available in the
common dll search locations. You may probably inspect this with a file
monitoring tool (like process
monitor<http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx>)
and see the expected locations of the files. You may probably set the PATH
environment for the process to point to the direcory where those dll-s
reside.


Best regards,

Tamas


2010/11/20 MarvinCO <marvin.offiah at googlemail.com>

>
> Hey,
>
> I am trying to write a Java application that uses GDAL on Windows 7. I am
> using the Java bindings of GDAL together with the gdal DLLs from the GDAL
> download page.
>
> I hope you are familiar with the distributions I'm using:
>
> GDAL DLLs:
> imageio-ext-1.0.5-windows32-dlls/*
>
> GDAL Java bindings:
> imageio-ext-1.0.8-libraries/*
>
> I have copied all the DLLs into my jre/bin directory of my Java Runtime
> environment.
>
> Everything works fine if I run the program via the Eclilpse run
> configuration. GDAL libraries are properly loaded, and are able to read a
> shapefile that my program opens and display its contents.
>
> My program starts like this:
>
> package mapillustrator;
>
> import javax.swing.JLabel;
> import javax.swing.JOptionPane;
>
> import mapillustrator.controller.Controller;
> import mapillustrator.view.MainWindow;
>
> import org.gdal.ogr.ogr;
>
> /*
>  * To change this template, choose Tools | Templates and open the template
> in
>  * the editor.
>  */
>
> /**
>  *
>  * @author marvin
>  */
> public class MapIllustrator {
>
>        public static Controller controller;
>
>        public static MainWindow mainWindow;
>
>        public static void main(String[] args) throws Exception {
>                try {
>                        System.loadLibrary("gdal14");
>                        ogr.RegisterAll();
>                        controller = new Controller(args[0]);
>                        mainWindow = new MainWindow(null, true);
>                } catch (Exception e) {
>                        JOptionPane.showMessageDialog(new JLabel(),
> e.getMessage());
>                        e.printStackTrace();
>                }
>        }
>
> }
>
> So, as I said, all this works fine.
>
> However, I now want to have the main method launched via a python script
> for
> some reason, so here's my python script (the script is located at
> "C:\Program Files\Inkscape\share\extensions"):
>
> import os, sys, subprocess, time
>
> dir = os.getcwd().replace("\\", "/") + "/share/extensions/MapIllustrator/"
> libdir = dir + "lib/"
>
> subprocess.Popen("java -verbose -classpath \".;C:/Program
> Files/Java/jre6/lib/ext/QTJava.zip;" + dir + "build/classes;" + libdir +
> "*;" + libdir + "SuperCSV-1.52/*;" + libdir + "batik-1.7/*;" + libdir +
> "batik-1.7/lib/*;" + libdir + "batik-1.7/extensions/*;" + libdir +
> "imageio-ext-1.0.8-libraries/*;" + "\" mapillustrator.MapIllustrator \"" +
> sys.argv[-1] + "\"", stdout=True)
>
> But everytime I launch my application via the script I get an
> UnsatisfiedLinkError of the kind
>
> "gdal14.dll: Can't find dependent libraries"
>
> I'm really wondering why I am not getting this error if I launch my program
> via Eclipse. No such error occurs there and GDAL manages to load all the
> libraries and does not complain about any dependencies.
> Obviously, the gdal14.dll is found. I'm using the JDK1.6.0.22 with Eclipse.
> Its JRE is also configured as the default JRE in my windows registry:
>
> C:\Program Files\Java\jdk1.6.0_21\jre
>
> As I said, I have also copied all files from the
> imageio-ext-1.0.5-windows32-dlls/* into the "C:\Program
> Files\Java\jdk1.6.0_21\jre\bin". I have also tried copying them to
> "C:\Program Files\Java\jdk1.6.0_21\bin" instead. The all Java bindings for
> GDAL are also included in the Java classpath in my Eclipse project
> settings.
> As you can see in the Python script, I am also doing that above.
>
> So obviously, there has to be a difference in how Eclipse launches my Java
> program and in how the python script does. I don't see any other
> explanation, and I also don't know what on earth Eclipse does different to
> have it run without a problem. There isn't a single argument set in my run
> configuration. I don't know how Eclipse actually transfers the classpath
> arguments of the project settings into the program launch (probably adds
> the
> -classpath <...> argument on its own), but other than that I'd really like
> to know what I am doing wrong.
> The only difference between running from Eclipse and running via my python
> script seems to be that my python script is that both are calling java from
> a different current working directory: The project home in Eclipse VS
> "C:\Program Files\Inkscape" in the script. The script is being launched as
> an Inkscape extension. I don't know why Inkscape sets the CWD to
> "C:\Program Files\Inkscape", although it is located at "C:\Program
> Files\Inkscape\share\extensions"
>
>
> --
> View this message in context:
> http://osgeo-org.1803224.n2.nabble.com/UnsatisfiedLinkError-with-gdal14-tp5759026p5759026.html
> Sent from the GDAL - Dev mailing list archive at Nabble.com.
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