Made keepBytes property not nullable

src/main/java/net/ivoa/xml/vospace/v2/Transfer.java

@@ -89,7 +89,7 @@ public class Transfer {
     protected View view;
     @XmlElement(name = "protocol")
     protected List<Protocol> protocols;
-    protected Boolean keepBytes;
+    protected boolean keepBytes;
     // <edit> Fix: version is missing in VOSpace XSD
     @XmlAttribute
     protected String version;
@@ -207,7 +207,7 @@ public class Transfer {
      *     {@link Boolean }
      *     
      */
-    public Boolean isKeepBytes() {
+    public boolean isKeepBytes() {
         return keepBytes;
     }
 
@@ -219,7 +219,7 @@ public class Transfer {
      *     {@link Boolean }
      *     
      */
-    public void setKeepBytes(Boolean value) {
+    public void setKeepBytes(boolean value) {
         this.keepBytes = value;
     }