java: solved some SWIGTYPE issues

Signed-off-by: Andrei Vasiliu <andrei.vasiliu@intel.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

Conflicts:
	src/mma7455/mma7455.cxx
	src/mma7455/mma7455.h

src/m24lr64e/m24lr64e.h

@@ -215,10 +215,11 @@ namespace upm {
     /**
      * Returns a unique ID.
      * Must be in the root mode.
+     * Maintained to preserve compatibility with older code.
      *
-     * @param buf Buffer to hold the returned UID. Must be UID_LENGTH bytes.
+     * @result buf Buffer to hold the UID. Must be UID_LENGTH bytes.
      */
-    void getUID(uint8_t* buffer);
+    uint8_t *getUID();
 
     /**
      * Returns the memory size