diff --git a/utils/misc/src/main/java/org/onlab/packet/IPv4.java b/utils/misc/src/main/java/org/onlab/packet/IPv4.java
index 28f6a48..574fd1a 100644
--- a/utils/misc/src/main/java/org/onlab/packet/IPv4.java
+++ b/utils/misc/src/main/java/org/onlab/packet/IPv4.java
@@ -32,13 +32,13 @@
     public static final byte PROTOCOL_ICMP = 0x1;
     public static final byte PROTOCOL_TCP = 0x6;
     public static final byte PROTOCOL_UDP = 0x11;
-    public static Map<Byte, Class<? extends IPacket>> protocolClassMap =
+    public static final Map<Byte, Class<? extends IPacket>> PROTOCOL_CLASS_MAP =
             new HashMap<>();
 
     static {
-        IPv4.protocolClassMap.put(IPv4.PROTOCOL_ICMP, ICMP.class);
-        IPv4.protocolClassMap.put(IPv4.PROTOCOL_TCP, TCP.class);
-        IPv4.protocolClassMap.put(IPv4.PROTOCOL_UDP, UDP.class);
+        IPv4.PROTOCOL_CLASS_MAP.put(IPv4.PROTOCOL_ICMP, ICMP.class);
+        IPv4.PROTOCOL_CLASS_MAP.put(IPv4.PROTOCOL_TCP, TCP.class);
+        IPv4.PROTOCOL_CLASS_MAP.put(IPv4.PROTOCOL_UDP, UDP.class);
     }
 
     protected byte version;
@@ -390,8 +390,8 @@
         }
 
         IPacket payload;
-        if (IPv4.protocolClassMap.containsKey(this.protocol)) {
-            final Class<? extends IPacket> clazz = IPv4.protocolClassMap
+        if (IPv4.PROTOCOL_CLASS_MAP.containsKey(this.protocol)) {
+            final Class<? extends IPacket> clazz = IPv4.PROTOCOL_CLASS_MAP
                     .get(this.protocol);
             try {
                 payload = clazz.newInstance();
diff --git a/utils/misc/src/main/java/org/onlab/util/Tools.java b/utils/misc/src/main/java/org/onlab/util/Tools.java
index 3a0e926..b6a76d0 100644
--- a/utils/misc/src/main/java/org/onlab/util/Tools.java
+++ b/utils/misc/src/main/java/org/onlab/util/Tools.java
@@ -15,18 +15,20 @@
  */
 package org.onlab.util;
 
-import com.google.common.base.Strings;
-import com.google.common.primitives.UnsignedLongs;
-import com.google.common.util.concurrent.ThreadFactoryBuilder;
-
 import java.io.BufferedReader;
 import java.io.File;
-import java.io.FileReader;
+import java.io.FileInputStream;
 import java.io.IOException;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.ThreadFactory;
 
+import com.google.common.base.Strings;
+import com.google.common.primitives.UnsignedLongs;
+import com.google.common.util.concurrent.ThreadFactoryBuilder;
+
 public abstract class Tools {
 
     private Tools() {
@@ -94,7 +96,10 @@
      * @return file contents
      */
     public static List<String> slurp(File path) {
-        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
+        try {
+            BufferedReader br = new BufferedReader(
+                new InputStreamReader(new FileInputStream(path), StandardCharsets.UTF_8));
+
             List<String> lines = new ArrayList<>();
             String line;
             while ((line = br.readLine()) != null) {