diff --git a/algebricks/algebricks-examples/piglet-example/pom.xml b/algebricks/algebricks-examples/piglet-example/pom.xml
index 4b101d7..254d016 100644
--- a/algebricks/algebricks-examples/piglet-example/pom.xml
+++ b/algebricks/algebricks-examples/piglet-example/pom.xml
@@ -48,6 +48,24 @@
 					</includes>
 				</configuration>
 			</plugin>
+                        <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>build-helper-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>add-source</id>
+                        <phase>generate-sources</phase>
+                        <goals>
+                            <goal>add-source</goal>
+                        </goals>
+                        <configuration>
+                            <sources>
+                                <source>${project.build.directory}/generated-sources/javacc/</source>
+                            </sources>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
 		</plugins>
 		<pluginManagement>
 			<plugins>
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/MurmurHash3BinaryHashFunctionFamily.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/MurmurHash3BinaryHashFunctionFamily.java
deleted file mode 100644
index 760a614..0000000
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/MurmurHash3BinaryHashFunctionFamily.java
+++ /dev/null
@@ -1,63 +0,0 @@
-package edu.uci.ics.hivesterix.runtime.factory.hashfunction;
-
-import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
-import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFamily;
-
-public class MurmurHash3BinaryHashFunctionFamily implements IBinaryHashFunctionFamily {
-
-    public static final IBinaryHashFunctionFamily INSTANCE = new MurmurHash3BinaryHashFunctionFamily();
-
-    private static final long serialVersionUID = 1L;
-
-    private MurmurHash3BinaryHashFunctionFamily() {
-    }
-
-    private static final int C1 = 0xcc9e2d51;
-    private static final int C2 = 0x1b873593;
-    private static final int C3 = 5;
-    private static final int C4 = 0xe6546b64;
-    private static final int C5 = 0x85ebca6b;
-    private static final int C6 = 0xc2b2ae35;
-
-    @Override
-    public IBinaryHashFunction createBinaryHashFunction(final int seed) {
-        return new IBinaryHashFunction() {
-            @Override
-            public int hash(byte[] bytes, int offset, int length) {
-                int h = seed;
-                int p = offset;
-                int remain = length;
-                while (remain >= 4) {
-                    int k = (bytes[p] & 0xff) | ((bytes[p + 1] & 0xff) << 8) | ((bytes[p + 2] & 0xff) << 16)
-                            | ((bytes[p + 3] & 0xff) << 24);
-                    k *= C1;
-                    k = Integer.rotateLeft(k, 15);
-                    k *= C2;
-                    h ^= k;
-                    h = Integer.rotateLeft(h, 13);
-                    h = h * C3 + C4;
-                    p += 4;
-                    remain -= 4;
-                }
-                if (remain > 0) {
-                    int k = 0;
-                    for (int i = 0; remain > 0; i += 8) {
-                        k ^= (bytes[p++] & 0xff) << i;
-                        remain--;
-                    }
-                    k *= C1;
-                    k = Integer.rotateLeft(k, 15);
-                    k *= C2;
-                    h ^= k;
-                }
-                h ^= length;
-                h ^= (h >>> 16);
-                h *= C5;
-                h ^= (h >>> 13);
-                h *= C6;
-                h ^= (h >>> 16);
-                return h;
-            }
-        };
-    }
-}
\ No newline at end of file
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryHashFunctionFamilyProvider.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryHashFunctionFamilyProvider.java
index e7a2e79..45302e8 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryHashFunctionFamilyProvider.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryHashFunctionFamilyProvider.java
@@ -1,9 +1,9 @@
 package edu.uci.ics.hivesterix.runtime.provider;
 
-import edu.uci.ics.hivesterix.runtime.factory.hashfunction.MurmurHash3BinaryHashFunctionFamily;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.data.IBinaryHashFunctionFamilyProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFamily;
+import edu.uci.ics.hyracks.data.std.accessors.MurmurHash3BinaryHashFunctionFamily;
 
 public class HiveBinaryHashFunctionFamilyProvider implements IBinaryHashFunctionFamilyProvider {
 
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/MurmurHash3BinaryHashFunctionFamily.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/MurmurHash3BinaryHashFunctionFamily.java
index 8f2e32c..588ad00 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/MurmurHash3BinaryHashFunctionFamily.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/MurmurHash3BinaryHashFunctionFamily.java
@@ -3,9 +3,23 @@
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFamily;
 
-public class MurmurHash3BinaryHashFunctionFamily implements IBinaryHashFunctionFamily {
+/**
+ * An implementation of the Murmur3 hash family. The code is implemented based
+ * on the original <a
+ * href=http://code.google.com/p/guava-libraries/source/browse
+ * /guava/src/com/google/common/hash/Murmur3_32HashFunction.java>guava
+ * implementation</a> from Google Guava library.
+ */
+public class MurmurHash3BinaryHashFunctionFamily implements
+        IBinaryHashFunctionFamily {
+
+    public static final IBinaryHashFunctionFamily INSTANCE = new MurmurHash3BinaryHashFunctionFamily();
+
     private static final long serialVersionUID = 1L;
 
+    private MurmurHash3BinaryHashFunctionFamily() {
+    }
+
     private static final int C1 = 0xcc9e2d51;
     private static final int C2 = 0x1b873593;
     private static final int C3 = 5;
@@ -21,9 +35,10 @@
                 int h = seed;
                 int p = offset;
                 int remain = length;
-                while (remain > 4) {
-                    int k = ((int) bytes[p]) | (((int) bytes[p + 1]) << 8) | (((int) bytes[p + 2]) << 16)
-                            | (((int) bytes[p + 3]) << 24);
+                while (remain >= 4) {
+                    int k = (bytes[p] & 0xff) | ((bytes[p + 1] & 0xff) << 8)
+                            | ((bytes[p + 2] & 0xff) << 16)
+                            | ((bytes[p + 3] & 0xff) << 24);
                     k *= C1;
                     k = Integer.rotateLeft(k, 15);
                     k *= C2;
@@ -33,20 +48,16 @@
                     p += 4;
                     remain -= 4;
                 }
-                int k = 0;
-                switch (remain) {
-                    case 3:
-                        k = bytes[p++];
-                    case 2:
-                        k = (k << 8) | bytes[p++];
-                    case 1:
-                        k = (k << 8) | bytes[p++];
-                        k *= C1;
-                        k = Integer.rotateLeft(k, 15);
-                        k *= C2;
-                        h ^= k;
-                        h = Integer.rotateLeft(h, 13);
-                        h = h * C3 + C4;
+                if (remain > 0) {
+                    int k = 0;
+                    for (int i = 0; remain > 0; i += 8) {
+                        k ^= (bytes[p++] & 0xff) << i;
+                        remain--;
+                    }
+                    k *= C1;
+                    k = Integer.rotateLeft(k, 15);
+                    k *= C2;
+                    h ^= k;
                 }
                 h ^= length;
                 h ^= (h >>> 16);