diff --git a/src/mic/javaupm_mic.i b/src/mic/javaupm_mic.i
index 0dcc4eca..1764429e 100644
--- a/src/mic/javaupm_mic.i
+++ b/src/mic/javaupm_mic.i
@@ -1,9 +1,9 @@
 %module javaupm_mic
 %include "../upm.i"
 %include "stdint.i"
-%include "typemaps.i"
+%include "arrays_java.i"
 
-%apply uint16_t *OUTPUT { uint16_t *buffer };
+%apply unsigned short[] {uint16_t *buffer}; 
 
 %{
     #include "mic.h"
diff --git a/src/ublox6/javaupm_ublox6.i b/src/ublox6/javaupm_ublox6.i
index 57673b4f..9a93422f 100644
--- a/src/ublox6/javaupm_ublox6.i
+++ b/src/ublox6/javaupm_ublox6.i
@@ -8,6 +8,23 @@
     speed_t int_B9600 = B9600;
 %}
 
+%typemap(jni) (char *buffer, size_t len) "jbyteArray";
+%typemap(jtype) (char *buffer, size_t len) "byte[]";
+%typemap(jstype) (char *buffer, size_t len) "byte[]";
+
+%typemap(in) (char *buffer, size_t len) {
+        $1 = (char *) JCALL2(GetByteArrayElements, jenv, $input, NULL);
+        $2 = JCALL1(GetArrayLength, jenv, $input);
+}
+
+%typemap(freearg) readData(char *buffer, size_t len) {
+        JCALL2(ReleaseByteArrayElements, jenv, $input, JNI_ABORT);
+}
+
+%typemap(freearg) writeData(char *buffer, size_t len) {
+        JCALL2(ReleaseByteArrayElements, jenv, $input, 0);
+}
+
 %include "ublox6.h"
 speed_t int_B9600 = B9600;
 %array_class(char, charArray);