Index: src/java/org/apache/ivy/core/module/id/ArtifactRevisionId.java
===================================================================
--- src/java/org/apache/ivy/core/module/id/ArtifactRevisionId.java	(revision 1208940)
+++ src/java/org/apache/ivy/core/module/id/ArtifactRevisionId.java	(working copy)
@@ -17,6 +17,7 @@
  */
 package org.apache.ivy.core.module.id;
 
+import java.util.HashMap;
 import java.util.Map;
 
 import org.apache.ivy.core.IvyPatternHelper;
@@ -24,7 +25,7 @@
 
 /**
  * Identifies an artifact in a particular module revision
- * 
+ *
  * @see <a href="package-summary.html">org.apache.ivy.core.module.id</a>
  */
 public class ArtifactRevisionId extends UnmodifiableExtendableItem {
@@ -48,7 +49,7 @@
     }
 
     public ArtifactRevisionId(ArtifactId artfId, ModuleRevisionId mdlRevId, Map extraAttributes) {
-        super(null, extraAttributes);
+        super(null, prepareExtraAttribute(artfId,extraAttributes));
         artifactId = artfId;
         mrid = mdlRevId;
 
@@ -61,6 +62,20 @@
         setStandardAttribute(IvyPatternHelper.EXT_KEY, getExt());
     }
 
+    public static Map prepareExtraAttribute(ArtifactId artfId,Map extraAttributes) {
+        final String type = artfId.getType();
+        final String ext = artfId.getExt();
+        if((!("jar".equals(type))&&"jar".equals(ext) )&& (extraAttributes == null || !extraAttributes.containsKey("classifier"))){
+            if( extraAttributes == null){
+                extraAttributes = new HashMap();
+            }else{
+                extraAttributes = new HashMap(extraAttributes);
+            }
+            extraAttributes.put("m:classifier", type);
+        }
+        return extraAttributes;
+    }
+
     public boolean equals(Object obj) {
         if (!(obj instanceof ArtifactRevisionId)) {
             return false;
@@ -79,13 +94,13 @@
         hash += getModuleRevisionId().hashCode() * 37;
         hash += getQualifiedExtraAttributes().hashCode() * 37;
         //CheckStyle:MagicNumber| ON
-        
+
         return hash;
     }
 
     public String toString() {
         return getModuleRevisionId()
-                + "!" + getName() + "." + getExt() 
+                + "!" + getName() + "." + getExt()
                 + (getType().equals(getExt()) ? "" : "(" + getType() + ")");
     }