diff --git a/java/google/registry/batch/DeleteContactsAndHostsAction.java b/java/google/registry/batch/DeleteContactsAndHostsAction.java
index c424a79b8..7ba336454 100644
--- a/java/google/registry/batch/DeleteContactsAndHostsAction.java
+++ b/java/google/registry/batch/DeleteContactsAndHostsAction.java
@@ -501,7 +501,7 @@ public class DeleteContactsAndHostsAction implements Runnable {
               checkNotNull(
                   params.get(PARAM_SERVER_TRANSACTION_ID), "Server transaction id not specified"))
           .setIsSuperuser(
-              Boolean.valueOf(
+              Boolean.parseBoolean(
                   checkNotNull(params.get(PARAM_IS_SUPERUSER), "Is superuser not specified")))
           .setRequestedTime(
               DateTime.parse(
diff --git a/java/google/registry/request/RequestParameters.java b/java/google/registry/request/RequestParameters.java
index bbd7da310..e24b4317a 100644
--- a/java/google/registry/request/RequestParameters.java
+++ b/java/google/registry/request/RequestParameters.java
@@ -84,7 +84,7 @@ public final class RequestParameters {
    */
   public static int extractIntParameter(HttpServletRequest req, String name) {
     try {
-      return Integer.valueOf(nullToEmpty(req.getParameter(name)));
+      return Integer.parseInt(nullToEmpty(req.getParameter(name)));
     } catch (NumberFormatException e) {
       throw new BadRequestException("Expected integer: " + name);
     }
diff --git a/java/google/registry/tldconfig/idn/IdnTable.java b/java/google/registry/tldconfig/idn/IdnTable.java
index 43a96d3ad..7e8a44c92 100644
--- a/java/google/registry/tldconfig/idn/IdnTable.java
+++ b/java/google/registry/tldconfig/idn/IdnTable.java
@@ -137,6 +137,6 @@ public final class IdnTable {
     checkArgument(matcher.lookingAt(), "Can't parse line: %s", line);
 
     String hexString = matcher.group(1);
-    return Integer.valueOf(hexString, 16);
+    return Integer.parseInt(hexString, 16);
   }
 }