diff --git a/server-spi-private/src/main/java/org/keycloak/validate/validators/DoubleValidator.java b/server-spi-private/src/main/java/org/keycloak/validate/validators/DoubleValidator.java
index d8b3f063bb..200076d2a7 100644
--- a/server-spi-private/src/main/java/org/keycloak/validate/validators/DoubleValidator.java
+++ b/server-spi-private/src/main/java/org/keycloak/validate/validators/DoubleValidator.java
@@ -49,7 +49,7 @@ public class DoubleValidator extends AbstractNumberValidator implements Configur
         if (value instanceof Number) {
             return (Number) value;
         }
-        return new Double(value.toString());
+        return Double.valueOf(value.toString());
     }
 
     @Override
diff --git a/server-spi-private/src/main/java/org/keycloak/validate/validators/IntegerValidator.java b/server-spi-private/src/main/java/org/keycloak/validate/validators/IntegerValidator.java
index 3e9a4d1e88..e34113101c 100644
--- a/server-spi-private/src/main/java/org/keycloak/validate/validators/IntegerValidator.java
+++ b/server-spi-private/src/main/java/org/keycloak/validate/validators/IntegerValidator.java
@@ -44,7 +44,7 @@ public class IntegerValidator extends AbstractNumberValidator implements Configu
         if (value instanceof Integer || value instanceof Long) {
             return (Number) value;
         }
-        return new Long(value.toString());
+        return Long.valueOf(value.toString());
     }
 
     @Override
diff --git a/server-spi/src/main/java/org/keycloak/validate/ValidatorConfig.java b/server-spi/src/main/java/org/keycloak/validate/ValidatorConfig.java
index e9901a1824..86645199d1 100644
--- a/server-spi/src/main/java/org/keycloak/validate/ValidatorConfig.java
+++ b/server-spi/src/main/java/org/keycloak/validate/ValidatorConfig.java
@@ -108,7 +108,7 @@ public class ValidatorConfig {
             return ((Number) value).intValue();
         } else if (value instanceof String) {
             try {
-                return new Integer((String) value);
+                return Integer.valueOf((String) value);
             } catch (NumberFormatException e) {
                 return null;
             }
@@ -128,7 +128,7 @@ public class ValidatorConfig {
             return ((Number) value).longValue();
         } else if (value instanceof String) {
             try {
-                return new Long((String) value);
+                return Long.valueOf((String) value);
             } catch (NumberFormatException e) {
                 return null;
             }