diff --git a/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexInsertUpdateDeleteOperatorNodePushable.java b/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexInsertUpdateDeleteOperatorNodePushable.java
index 34951bf..0ae513b 100644
--- a/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexInsertUpdateDeleteOperatorNodePushable.java
+++ b/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexInsertUpdateDeleteOperatorNodePushable.java
@@ -84,23 +84,28 @@
 
 				case INSERT: {
 					treeIndex.insert(tuple, opCtx);
-				}
 					break;
+				}
 
+				case UPDATE: {
+					treeIndex.update(tuple, opCtx);
+					break;
+				}
+				
 				case DELETE: {
 					treeIndex.delete(tuple, opCtx);
-				}
 					break;
-
+				}
+					
 				default: {
 					throw new HyracksDataException("Unsupported operation "
 							+ op + " in tree index InsertUpdateDelete operator");
 				}
 
 				}
-
+			} catch (HyracksDataException e) {
+				throw e;
 			} catch (Exception e) {
-				e.printStackTrace();
 				throw new HyracksDataException(e);
 			}
 		}
diff --git a/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeTestUtils.java b/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeTestUtils.java
index 09d3dd4..8e7a43b 100644
--- a/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeTestUtils.java
+++ b/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeTestUtils.java
@@ -410,7 +410,7 @@
     public static void deleteTuples(BTreeTestContext testCtx, int numTuples, Random rnd) throws Exception {
         ArrayTupleBuilder deleteTupleBuilder = new ArrayTupleBuilder(testCtx.btree.getMultiComparator().getKeyFieldCount());
         ArrayTupleReference deleteTuple = new ArrayTupleReference();
-        int numCheckTuples = testCtx.checkTuples.size();
+        int numCheckTuples = testCtx.checkTuples.size();        
         testCtx.opCtx.reset(IndexOp.DELETE);
         // Copy CheckTuple references into array, so we can randomly pick from there.
         CheckTuple[] checkTuples = new CheckTuple[numCheckTuples];