cannot run javacv example, ClassNotFoundException (Mac OS X)

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What steps will reproduce the problem?
1. Install opencv from Mac Ports ( 
http://opencv.willowgarage.com/wiki/Mac_OS_X_OpenCV_Port )
2. Downloaded javacv
3. Created example Smoother.java:

import static com.googlecode.javacv.cpp.opencv_core.*;
import static com.googlecode.javacv.cpp.opencv_imgproc.*;
import static com.googlecode.javacv.cpp.opencv_highgui.*;

public class Smoother {
    public static void main(String filename) { 
        IplImage image = cvLoadImage(filename);
        if (image != null) {
            cvSmooth(image, image, CV_GAUSSIAN, 3);
            cvSaveImage(filename, image);
            cvReleaseImage(image);
        }
    }
}

4. compiled
$ javac -cp ./javacv.jar Smoother.java

5. ran
$ java -cp ./javacv.jar Smoother

What is the expected output? What do you see instead?

$ java Smoother
Exception in thread "main" java.lang.NoClassDefFoundError: 
com/googlecode/javacv/cpp/opencv_core$CvArr
Caused by: java.lang.ClassNotFoundException: 
com.googlecode.javacv.cpp.opencv_core$CvArr
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
$ java -cp ./javacv.jar Smoother
Exception in thread "main" java.lang.NoClassDefFoundError: Smoother
Caused by: java.lang.ClassNotFoundException: Smoother
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
$ java -cp ./javacv.jar:./ Smoother
Exception in thread "main" java.lang.NoSuchMethodError: main

What version of the product are you using? On what operating system?
 * Mac OS X 10.7.2
 * OpenCV 2.3.1a (from MacPorts)
 * JavaCV (bin 2011-10-01)

Please provide any additional information below.

Not a dup of 
http://code.google.com/p/javacv/issues/detail?id=125&can=1&sort=-id, this is a 
test from compiling at the command line (removing any potential Eclipse 
complications)

Original issue reported on code.google.com by andrew.c...@gmail.com on 3 Nov 2011 at 5:21

[GoogleCodeExporter]

Hum, looks like MacPorts does not add its libraries in the path by default. We 
can work around this by setting the DYLD_FALLBACK_LIBRARY_PATH environment 
variable, e.g.:
    export DYLD_FALLBACK_LIBRARY_PATH=/opt/local/lib/
This directory will be hardcoded next time I recompile JavaCV with MacPorts, 
well unless OpenCV 2.3.2 or something comes out and MacPorts takes another few 
months to follow...

Original comment by samuel.a...@gmail.com on 4 Nov 2011 at 4:12

• Changed title: cannot run javacv example, ClassNotFoundException (Mac OS X)
• Changed state: Started

[GoogleCodeExporter]

Well, oddly enough now I can run the javacv example just fine in Eclipse, 
though still having some issue with the classpath on the command line.

What changed is I rebuilt libpng in Mac Ports.  I can link to the thread 
discussing it there if you wish.

Original comment by andrew.c...@gmail.com on 4 Nov 2011 at 8:49

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[deleted comment]

[GoogleCodeExporter]

I got it. Thanks anyway.

Original comment by bphan...@gmail.com on 22 Nov 2011 at 3:31

[GoogleCodeExporter]

Mind sharing your solution?

Original comment by andrew.c...@gmail.com on 22 Nov 2011 at 2:09

[GoogleCodeExporter]

Typing the export command above in a Terminal window does not work?

Original comment by samuel.a...@gmail.com on 26 Nov 2011 at 6:04

[GoogleCodeExporter]

If you are running it in Eclipse simply add the environment variable 
DYLD_FALLBACK_LIBRARY_PATH=/opt/local/lib  in the debug/run configuration and 
that should work.  Otherwise if you run from the command line having it set in 
your env should also work.

Original comment by triggull...@gmail.com on 29 Nov 2011 at 5:37

[GoogleCodeExporter]

export DYLD_FALLBACK_LIBRARY_PATH=/opt/local/lib/

also worked for me.
(OSX)

Original comment by jerda...@speakeasy.net on 2 Dec 2011 at 6:35

[GoogleCodeExporter]

Fixed in latest release!

Original comment by samuel.a...@gmail.com on 8 Jan 2012 at 3:46

• Changed state: Fixed