java: Use Runnables instead of IsrCallbacks in Java

Signed-off-by: Petre Eftime <petre.p.eftime@intel.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

src/bma220/javaupm_bma220.i

@@ -1,15 +1,10 @@
-%module(directors="1") javaupm_bma220
+%module javaupm_bma220
 %include "../upm.i"
 %include "cpointer.i"
 %include "typemaps.i"
 %include "arrays_java.i";
 %include "../java_buffer.i"
 
-%feature("director") IsrCallback;
-SWIG_DIRECTOR_OWNED(IsrCallback)
-%ignore generic_callback_isr;
-%include "../IsrCallback.h"
-
 %apply int {mraa::Edge};
 %apply float *INOUT { float *x, float *y, float *z };
 
@@ -44,4 +39,4 @@ SWIG_DIRECTOR_OWNED(IsrCallback)
             System.exit(1);
         }
     }
-%}
+%}