diff --git a/lib/server-core-ext/pom.xml b/lib/server-core-ext/pom.xml
index cc0f3b18c..616ac1657 100644
--- a/lib/server-core-ext/pom.xml
+++ b/lib/server-core-ext/pom.xml
@@ -80,6 +80,7 @@
     <dependency>
       <groupId>commons-io</groupId>
       <artifactId>commons-io</artifactId>
+      <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.httpcomponents</groupId>
diff --git a/lib/server-core-ext/src/main/java/org/apache/olingo/server/core/requests/DataRequest.java b/lib/server-core-ext/src/main/java/org/apache/olingo/server/core/requests/DataRequest.java
index da177bb13..a14d21a88 100644
--- a/lib/server-core-ext/src/main/java/org/apache/olingo/server/core/requests/DataRequest.java
+++ b/lib/server-core-ext/src/main/java/org/apache/olingo/server/core/requests/DataRequest.java
@@ -23,10 +23,13 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.net.URI;
 import java.net.URISyntaxException;
+import java.nio.ByteBuffer;
+import java.nio.channels.Channels;
+import java.nio.channels.ReadableByteChannel;
+import java.nio.channels.WritableByteChannel;
 import java.util.LinkedList;
 import java.util.List;
 
-import org.apache.commons.io.IOUtils;
 import org.apache.olingo.commons.api.data.ContextURL;
 import org.apache.olingo.commons.api.data.ContextURL.Suffix;
 import org.apache.olingo.commons.api.data.Entity;
@@ -40,6 +43,7 @@ import org.apache.olingo.commons.api.edm.EdmNavigationProperty;
 import org.apache.olingo.commons.api.edm.EdmNavigationPropertyBinding;
 import org.apache.olingo.commons.api.edm.EdmPrimitiveTypeKind;
 import org.apache.olingo.commons.api.edm.EdmProperty;
+import org.apache.olingo.commons.api.ex.ODataRuntimeException;
 import org.apache.olingo.commons.api.format.ContentType;
 import org.apache.olingo.commons.api.http.HttpHeader;
 import org.apache.olingo.commons.core.edm.primitivetype.EdmPrimitiveTypeFactory;
@@ -82,6 +86,7 @@ import org.apache.olingo.server.core.responses.StreamResponse;
 import org.apache.olingo.server.core.uri.parser.UriParserSemanticException;
 
 public class DataRequest extends ServiceRequest {
+  public static final int DEFAULT_BUFFER_SIZE = 8192;
   protected UriResourceEntitySet uriResourceEntitySet;
   private boolean countRequest;
   private UriResourceProperty uriResourceProperty;
@@ -623,7 +628,7 @@ public class DataRequest extends ServiceRequest {
         Property property = new Property(
             edmProperty.getType().getFullQualifiedName().getFullQualifiedNameAsString(),
             edmProperty.getName());
-        property.setValue(ValueType.PRIMITIVE, getRawValueFromClient(edmProperty));
+        property.setValue(ValueType.PRIMITIVE, getRawValueFromClient());
         handler.updateProperty(DataRequest.this, property, false,
             getETag(), propertyResponse);
       }
@@ -701,25 +706,26 @@ public class DataRequest extends ServiceRequest {
     return deserializer.property(getODataRequest().getBody(), edmProperty).getProperty();
   }
   
-  private Object getRawValueFromClient(
-      EdmProperty edmProperty) throws DeserializerException {
-    ByteArrayOutputStream bos = new ByteArrayOutputStream(1024);
-    byte[] buffer = new byte[1024];
-    int read = 0;
-    do {
+  private Object getRawValueFromClient() throws DeserializerException {
+    InputStream input = getODataRequest().getBody();
+    ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+    if (input != null) {
       try {
-        read = IOUtils.read(getODataRequest().getBody(), buffer, 0, 1024);
-        bos.write(buffer, 0, read);
-        if (read < 1024) {
-          break;
+        ByteBuffer inBuffer = ByteBuffer.allocate(DEFAULT_BUFFER_SIZE);
+        ReadableByteChannel ic = Channels.newChannel(input);
+        WritableByteChannel oc = Channels.newChannel(buffer);
+        while (ic.read(inBuffer) > 0) {
+          inBuffer.flip();
+          oc.write(inBuffer);
+          inBuffer.rewind();
         }
+        return buffer.toByteArray();
       } catch (IOException e) {
-        throw new DeserializerException("Error reading raw value",
-            SerializerException.MessageKeys.IO_EXCEPTION);
+        throw new ODataRuntimeException("Error on reading content");
       }
-    } while (true);
-    return bos.toByteArray(); 
-  }  
+    }
+    return null;
+  }
 
   static ContextURL.Builder buildEntitySetContextURL(UriHelper helper,
       EdmBindingTarget edmEntitySet, List<UriParameter> keyPredicates, UriInfo uriInfo,
diff --git a/lib/server-core/pom.xml b/lib/server-core/pom.xml
index cb0ab3119..2763fd169 100644
--- a/lib/server-core/pom.xml
+++ b/lib/server-core/pom.xml
@@ -58,6 +58,7 @@
     <dependency>
       <groupId>commons-io</groupId>
       <artifactId>commons-io</artifactId>
+      <scope>test</scope>
     </dependency>
 
     <dependency>
diff --git a/lib/server-core/src/main/java/org/apache/olingo/server/core/debug/DebugTabBody.java b/lib/server-core/src/main/java/org/apache/olingo/server/core/debug/DebugTabBody.java
index 36c1d05e4..d290fc385 100644
--- a/lib/server-core/src/main/java/org/apache/olingo/server/core/debug/DebugTabBody.java
+++ b/lib/server-core/src/main/java/org/apache/olingo/server/core/debug/DebugTabBody.java
@@ -18,11 +18,17 @@
  */
 package org.apache.olingo.server.core.debug;
 
+import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.io.InputStream;
 import java.io.Writer;
+import java.nio.ByteBuffer;
+import java.nio.channels.Channels;
+import java.nio.channels.ReadableByteChannel;
+import java.nio.channels.WritableByteChannel;
 
 import org.apache.commons.codec.binary.Base64;
-import org.apache.commons.io.IOUtils;
+import org.apache.olingo.commons.api.ex.ODataRuntimeException;
 import org.apache.olingo.commons.api.http.HttpHeader;
 import org.apache.olingo.server.api.ODataResponse;
 
@@ -33,9 +39,9 @@ import com.fasterxml.jackson.core.JsonGenerator;
  */
 public class DebugTabBody implements DebugTab {
 
-  private static enum ResponseContent {
+  private enum ResponseContent {
     JSON, XML, TEXT, IMAGE
-  };
+  }
 
   private final ODataResponse response;
   private final ResponseContent responseContent;
@@ -82,13 +88,13 @@ public class DebugTabBody implements DebugTab {
       String contentString;
       switch (responseContent) {
       case IMAGE:
-        contentString = Base64.encodeBase64String(IOUtils.toString(response.getContent()).getBytes("UTF-8"));
+        contentString = Base64.encodeBase64String(streamToBytes(response.getContent()));
         break;
       case JSON:
       case XML:
       case TEXT:
       default:
-        contentString = IOUtils.toString(response.getContent(), "UTF-8");
+        contentString = new String(streamToBytes(response.getContent()), "UTF-8");
         break;
       }
       return contentString;
@@ -126,4 +132,24 @@ public class DebugTabBody implements DebugTab {
       break;
     }
   }
+
+  private byte[] streamToBytes(InputStream input) {
+    ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+    if (input != null) {
+      try {
+        ByteBuffer inBuffer = ByteBuffer.allocate(8192);
+        ReadableByteChannel ic = Channels.newChannel(input);
+        WritableByteChannel oc = Channels.newChannel(buffer);
+        while (ic.read(inBuffer) > 0) {
+          inBuffer.flip();
+          oc.write(inBuffer);
+          inBuffer.rewind();
+        }
+        return buffer.toByteArray();
+      } catch (IOException e) {
+        throw new ODataRuntimeException("Error on reading request content");
+      }
+    }
+    return null;
+  }
 }