diff --git a/utils/misc/src/main/java/org/onlab/packet/ChassisId.java b/utils/misc/src/main/java/org/onlab/packet/ChassisId.java
index 5b48e63..4555124 100644
--- a/utils/misc/src/main/java/org/onlab/packet/ChassisId.java
+++ b/utils/misc/src/main/java/org/onlab/packet/ChassisId.java
@@ -32,7 +32,7 @@
      * @param value the value to use.
      */
     public ChassisId(String value) {
-        this.value = Long.valueOf(value, 16);
+        this.value = Long.parseLong(value, 16);
     }
 
     /**
diff --git a/utils/misc/src/main/java/org/onlab/packet/DHCP.java b/utils/misc/src/main/java/org/onlab/packet/DHCP.java
index 2a116b1..119faf9 100644
--- a/utils/misc/src/main/java/org/onlab/packet/DHCP.java
+++ b/utils/misc/src/main/java/org/onlab/packet/DHCP.java
@@ -379,7 +379,7 @@
         // 300
         int optionsLength = 0;
         for (final DHCPOption option : this.options) {
-            if (option.getCode() == 0 || option.getCode() == 255) {
+            if (option.getCode() == 0 || option.getCode() == ((byte) 255)) {
                 optionsLength += 1;
             } else {
                 optionsLength += 2 + (0xff & option.getLength());
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 4b9fd66..634ceff 100644
--- a/utils/misc/src/main/java/org/onlab/packet/IPv4.java
+++ b/utils/misc/src/main/java/org/onlab/packet/IPv4.java
@@ -438,7 +438,7 @@
 
         int result = 0;
         for (int i = 0; i < 4; ++i) {
-            result |= Integer.valueOf(octets[i]) << (3 - i) * 8;
+            result |= Integer.parseInt(octets[i]) << (3 - i) * 8;
         }
         return result;
     }
@@ -471,7 +471,7 @@
         int result = 0;
         for (int i = 0; i < 4; ++i) {
             result = ipAddress >> (3 - i) * 8 & 0xff;
-        sb.append(Integer.valueOf(result).toString());
+        sb.append(result);
         if (i != 3) {
             sb.append(".");
         }