### Eclipse Workspace Patch 1.0
#P oak-mk
Index: src/main/java/org/apache/jackrabbit/mk/model/tree/DiffBuilder.java
===================================================================
--- src/main/java/org/apache/jackrabbit/mk/model/tree/DiffBuilder.java	(revision 1433354)
+++ src/main/java/org/apache/jackrabbit/mk/model/tree/DiffBuilder.java	(working copy)
@@ -60,7 +60,7 @@
         if (before == null) {
             if (after != null) {
                 buff.tag('+').key(path).object();
-                toJson(buff, after);
+                toJson(buff, after, depth);
                 return buff.endObject().newline().toString();
             } else {
                 // path doesn't exist in the specified revisions
@@ -117,7 +117,7 @@
                     addedNodes.put(after, p);
                     buff.tag('+').
                             key(p).object();
-                    toJson(buff, after);
+                    toJson(buff, after, depth);
                     buff.endObject().newline();
                 }
             }
@@ -215,7 +215,7 @@
                     if (p.startsWith(pathFilter)) {
                         buff.tag('+').
                                 key(p).object();
-                        toJson(buff, after);
+                        toJson(buff, after, depth);
                         buff.endObject().newline();
                     }
                 }
@@ -267,14 +267,16 @@
         return buff.toString();
     }
 
-    private void toJson(JsopBuilder builder, NodeState node) {
+    private void toJson(JsopBuilder builder, NodeState node, int depth) {
         for (PropertyState property : node.getProperties()) {
             builder.key(property.getName()).encodedValue(property.getEncodedValue());
         }
-        for (ChildNode entry : node.getChildNodeEntries(0, -1)) {
-            builder.key(entry.getName()).object();
-            toJson(builder, entry.getNode());
-            builder.endObject();
+        if (depth != 0) {
+            for (ChildNode entry : node.getChildNodeEntries(0, -1)) {
+                builder.key(entry.getName()).object();
+                toJson(builder, entry.getNode(), depth < 0 ? depth : depth - 1);
+                builder.endObject();
+            }
         }
     }
 }
Index: src/test/java/org/apache/jackrabbit/mk/MicroKernelImplTest.java
===================================================================
--- src/test/java/org/apache/jackrabbit/mk/MicroKernelImplTest.java	(revision 1433354)
+++ src/test/java/org/apache/jackrabbit/mk/MicroKernelImplTest.java	(working copy)
@@ -63,4 +63,15 @@
         headRev = mk.commit("/", "+\"b\" : {}", mk.getHeadRevision(), null);
         assertFalse("Commit must not have same id as branch", headRev.equals(branchRev));
     }
+    
+    @Test
+    public void diffWithDepth() {
+        String head = mk.getHeadRevision();
+        String r1 = mk.commit("/", "+\"a\" : { \"l\": 1, \"x\": { \"l\": 2, \"y\": {} } }", head, null);
+        String r2 = mk.commit("/", ">\"a\" : \"b\"", r1, null);
+        assertEquals("+\"/b\":{\"l\":1}", mk.diff(r1, r2, "/b", 0).trim());
+        assertEquals("+\"/b\":{\"l\":1,\"x\":{\"l\":2}}", mk.diff(r1, r2, "/b", 1).trim());
+        assertEquals("+\"/b\":{\"l\":1,\"x\":{\"l\":2,\"y\":{}}}", mk.diff(r1, r2, "/b", -1).trim());
+    }
+
 }