Found a solution/workaround, run your Java program using sudo. The
extensions can then be found.

On 10 March 2010 00:46, Yee Wei Law <[email protected]> wrote:

> Well, I'm also on Snow Leopard and I'm also having problem with Java not
> finding the getenv and toscomm library when they are all in
> /Library/java/Extensions.
>
>
> On 4 November 2009 02:47, Abhay Ghatpande <[email protected]> wrote:
>
>> Has anyone managed to get MATLAB working with tinyos-2.x?
>> I am using MATLAB R2009b on Mac OS 10.6.1 (Snow Leopard).
>> (1) tinyos-2.x works flawlessly on the Mac.
>> (2) I can call normal Java methods in Matlab without problem
>> (3) I can call Matlab functions in Java without problem (using the
>> MatlabControl and MatServer mentioned here:
>> http://www.cs.virginia.edu/~whitehouse/matlab/JavaMatlab.html<http://www.cs.virginia.edu/%7Ewhitehouse/matlab/JavaMatlab.html>and
>> here: 
>> http://www.cs.utoronto.ca/~bowen/code/code.html<http://www.cs.utoronto.ca/%7Ebowen/code/code.html>
>> )
>>
>> Serial (USB) ports can be opened in Matlab using
>> sio = serial('/dev//dev/tty.usbserial-xxxxxx');
>> fopen(sio);
>> etc.
>>
>> However, when I try,
>> con = connect('serial@/dev/tty.usbserial-xxxxxxx:telosb');
>> I get:
>> Could not connect: serial@/dev/tty.usbserial-XBS38CW:telosb
>> con =
>>     []
>>
>> Similar results for any other interface such as s...@localhost:9001. It
>> says could not connect. (Of course I start the SerialForwarder first
>> before trying this).
>>
>> If I try to create any new object such as SerialForwarder or implement
>> a MessageListener, I get the error:
>> java.lang.ClassNotFoundException: null
>> getenv JNI library not found. Env.getenv will not work
>> (run the tos-install-jni tool, see man tos-install-jni for more details)
>>
>> or toscomm JNI library no found.
>>
>> The classpath includes all the necessary jnilib.
>>
>> Any ideas how to get this to work?
>>
>> Abhay
>> _______________________________________________
>> Tinyos-help mailing list
>> [email protected]
>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
>>
>
>
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