El procesador de conejos

El microprocesador que necesita tu codigo! Ejecuta macro-instrucciones con conejos!

Ant: Could not create task or type of type: junit

Luego de escribir las pruebas de unidad y al intentar ejecutarlas mediante Ant en Eclipse aparece el siguiente mensaje:

BUILD FAILED
C:\dev\build.xml:XXX: Could not create task or type of type: junit.

Ant could not find the task or a class this task relies upon.

This is common and has a number of causes; the usual
solutions are to read the manual pages then download and
install needed JAR files, or fix the build file:
- You have misspelt 'junit'.
Fix: check your spelling.
- The task needs an external JAR file to execute
and this is not found at the right place in the classpath.
Fix: check the documentation for dependencies.
Fix: declare the task.
- The task is an Ant optional task and the JAR file and/or libraries
implementing the functionality were not found at the time you
yourself built your installation of Ant from the Ant sources.
Fix: Look in the ANT_HOME/lib for the 'ant-' JAR corresponding to the
task and make sure it contains more than merely a META-INF/MANIFEST.MF.
If all it contains is the manifest, then rebuild Ant with the needed
libraries present in ${ant.home}/lib/optional/ , or alternatively,
download a pre-built release version from apache.org
- The build file was written for a later version of Ant
Fix: upgrade to at least the latest release version of Ant
- The task is not an Ant core or optional task
and needs to be declared using .
- You are attempting to use a task defined using
or but have spelt wrong or not
defined it at the point of use

Remember that for JAR files to be visible to Ant tasks implemented
in ANT_HOME/lib, the files must be in the same directory or on the
classpath

Please neither file bug reports on this problem, nor email the
Ant mailing lists, until all of these causes have been explored,
as this is not an Ant bug.

Esto ocurre porque Ant no encuentra la libreria de JUnit en el classpath.

Posibles soluciones:

1. Crear un vinculo en el directorio ANT_HOME/lib a la libreria de JUnit, junit.jar
   La ventaja es que no se duplica la libreriade JUnit. En general esto no sirve pero vale la pena intentarlo.
   
   
2. Copiar la libreria junit.jar al directorio ANT_HOME/lib
   Es similar a la anterior, pero se duplica la libreria. Tampoco sirve pero porque no intentarlo tambien.
   
   
3. ...
   

Vinculos:

• And: A case study on how not to right an error message

Unix: Eliminando lineas en blanco

Eliminar lineas mediante el uso de sed en bash es sencillo. Aqui esta la prueba:

$ sed -e s/^$/true/ <>

Unix: Borrando espacios

Una tonteria que me trajo algunos dolores de cabeza usando bash, eliminar los espacios innecesarios. Una solucion muy sencilla usando el comando translate:

$ echo ' hola mundo !' | tr -d ' '
$ holamundo!

Escucha musica en todas partes!

Hace unas semanas, buscando fuentes de musica en internet, luego de pasar unas 15 paginas de google, encontre Radio Blog Club. Funciona bien, tiene una interfaz sencilla y hay de todo!

Here We Go :: P.O.D. - Greatest Hits, The Atlantic Years

He never knew the meaning
Of love until he'd seen her
Oh man, she really drives him crazy
And she knows what she's doing
Heart aches, he can't fight the feeling
And won't stop until he tells her
She is his one and only lady
And you got to believe me

[Pre-chorus Build]:
It's what he said, what he said
This is what he said

[Chorus]:
If you take my hand
We can run away
Stay close to my love
'Cause here we go again
Don't let go of my hand
So we can fly away
If you trust in my love
This will never end

She never did believe in
Love until she'd seen him
He's got to be pretty amazing
For her to share what she's feeling
She takes the chance, time for living
If she wants to get with him
She said you're gonna think I'm crazy
But you've got to believe me

[Pre-chorus Build]:
It's what she said, what she said
This is what she said

[Chorus]:
Seems like we spend so much time
Driving this to its knees
I guess I won't really mind
If we're living for you and me

And this is what we said

(Chorus)