diff --git a/src/main/java/org/elasticsearch/common/io/stream/StreamInput.java b/src/main/java/org/elasticsearch/common/io/stream/StreamInput.java
index aa01ae96fb126..7c2b9381a6099 100644
--- a/src/main/java/org/elasticsearch/common/io/stream/StreamInput.java
+++ b/src/main/java/org/elasticsearch/common/io/stream/StreamInput.java
@@ -446,7 +446,7 @@ public Object readGenericValue() throws IOException {
         }
     }
 
-    private Object readPrimitiveIntArray() throws IOException {
+    public Object readPrimitiveIntArray() throws IOException {
         int length = readVInt();
         int[] values = new int[length];
         for(int i=0; i<length; i++) {
@@ -455,7 +455,7 @@ private Object readPrimitiveIntArray() throws IOException {
         return values;
     }
     
-    private Object readPrimitiveLongArray() throws IOException {
+    public Object readPrimitiveLongArray() throws IOException {
         int length = readVInt();
         long[] values = new long[length];
         for(int i=0; i<length; i++) {
@@ -464,7 +464,7 @@ private Object readPrimitiveLongArray() throws IOException {
         return values;
     }
     
-    private Object readPrimitiveFloatArray() throws IOException {
+    public Object readPrimitiveFloatArray() throws IOException {
         int length = readVInt();
         float[] values = new float[length];
         for(int i=0; i<length; i++) {
@@ -473,7 +473,7 @@ private Object readPrimitiveFloatArray() throws IOException {
         return values;
     }
     
-    private Object readPrimitiveDoubleArray() throws IOException {
+    public Object readPrimitiveDoubleArray() throws IOException {
         int length = readVInt();
         double[] values = new double[length];
         for(int i=0; i<length; i++) {
diff --git a/src/main/java/org/elasticsearch/common/io/stream/StreamOutput.java b/src/main/java/org/elasticsearch/common/io/stream/StreamOutput.java
index e119b3e0ba8af..c5e3f2b09be53 100644
--- a/src/main/java/org/elasticsearch/common/io/stream/StreamOutput.java
+++ b/src/main/java/org/elasticsearch/common/io/stream/StreamOutput.java
@@ -425,28 +425,28 @@ public void writeGenericValue(@Nullable Object value) throws IOException {
         }
     }
 
-    private void writePrimitiveIntArray(int[] value) throws IOException {
+    public void writePrimitiveIntArray(int[] value) throws IOException {
         writeVInt(value.length);
         for (int i=0; i<value.length; i++) {
             writeInt(value[i]);
         }
     }
     
-    private void writePrimitiveLongArray(long[] value) throws IOException {
+    public void writePrimitiveLongArray(long[] value) throws IOException {
         writeVInt(value.length);
         for (int i=0; i<value.length; i++) {
             writeLong(value[i]);
         }
     }
     
-    private void writePrimitiveFloatArray(float[] value) throws IOException {
+    public void writePrimitiveFloatArray(float[] value) throws IOException {
         writeVInt(value.length);
         for (int i=0; i<value.length; i++) {
             writeFloat(value[i]);
         }
     }
     
-    private void writePrimitiveDoubleArray(double[] value) throws IOException {
+    public void writePrimitiveDoubleArray(double[] value) throws IOException {
         writeVInt(value.length);
         for (int i=0; i<value.length; i++) {
             writeDouble(value[i]);