diff --git a/guacamole-ext/src/main/java/org/apache/guacamole/form/NumericField.java b/guacamole-ext/src/main/java/org/apache/guacamole/form/NumericField.java
index cc2e2a548..ce2dba496 100644
--- a/guacamole-ext/src/main/java/org/apache/guacamole/form/NumericField.java
+++ b/guacamole-ext/src/main/java/org/apache/guacamole/form/NumericField.java
@@ -76,7 +76,7 @@ public class NumericField extends Field {
             return null;
 
         // Parse as integer
-        return new Integer(str);
+        return Integer.valueOf(str);
 
     }
 
diff --git a/guacamole-ext/src/main/java/org/apache/guacamole/properties/IntegerGuacamoleProperty.java b/guacamole-ext/src/main/java/org/apache/guacamole/properties/IntegerGuacamoleProperty.java
index a9d3686c4..2228e2ea2 100644
--- a/guacamole-ext/src/main/java/org/apache/guacamole/properties/IntegerGuacamoleProperty.java
+++ b/guacamole-ext/src/main/java/org/apache/guacamole/properties/IntegerGuacamoleProperty.java
@@ -35,8 +35,7 @@ public abstract class IntegerGuacamoleProperty implements GuacamoleProperty<Inte
             return null;
 
         try {
-            Integer integer = new Integer(value);
-            return integer;
+            return Integer.valueOf(value);
         }
         catch (NumberFormatException e) {
             throw new GuacamoleServerException("Property \"" + getName() + "\" must be an integer.", e);
diff --git a/guacamole-ext/src/main/java/org/apache/guacamole/properties/LongGuacamoleProperty.java b/guacamole-ext/src/main/java/org/apache/guacamole/properties/LongGuacamoleProperty.java
index 5eb5d1f6a..9c25d6f50 100644
--- a/guacamole-ext/src/main/java/org/apache/guacamole/properties/LongGuacamoleProperty.java
+++ b/guacamole-ext/src/main/java/org/apache/guacamole/properties/LongGuacamoleProperty.java
@@ -35,8 +35,7 @@ public abstract class LongGuacamoleProperty implements GuacamoleProperty<Long> {
             return null;
 
         try {
-            Long longValue = new Long(value);
-            return longValue;
+            return Long.valueOf(value);
         }
         catch (NumberFormatException e) {
             throw new GuacamoleServerException("Property \"" + getName() + "\" must be an long.", e);