diff --git a/src/main/java/com/primefactorsolutions/model/Employee.java b/src/main/java/com/primefactorsolutions/model/Employee.java
index d62f09b..173704a 100644
--- a/src/main/java/com/primefactorsolutions/model/Employee.java
+++ b/src/main/java/com/primefactorsolutions/model/Employee.java
@@ -115,7 +115,7 @@ public class Employee extends BaseEntity implements UserDetails {
     @Enumerated(EnumType.STRING)
     private Status status;
 
-    public void setCustomContractType(String customContractType) {
+    public void setCustomContractType(final String customContractType) {
         this.customContractType = customContractType;
     }
 
diff --git a/src/main/java/com/primefactorsolutions/model/MinAgeValidator.java b/src/main/java/com/primefactorsolutions/model/MinAgeValidator.java
index 980967a..5c453f2 100644
--- a/src/main/java/com/primefactorsolutions/model/MinAgeValidator.java
+++ b/src/main/java/com/primefactorsolutions/model/MinAgeValidator.java
@@ -10,12 +10,12 @@ public class MinAgeValidator implements ConstraintValidator<MinAge, LocalDate> {
     private int minAge;
 
     @Override
-    public void initialize(MinAge constraintAnnotation) {
+    public void initialize(final MinAge constraintAnnotation) {
         this.minAge = constraintAnnotation.value();
     }
 
     @Override
-    public boolean isValid(LocalDate birthday, ConstraintValidatorContext context) {
+    public boolean isValid(final LocalDate birthday, final ConstraintValidatorContext context) {
         if (birthday == null) {
             return true;
         }
diff --git a/src/main/java/com/primefactorsolutions/service/EmployeeService.java b/src/main/java/com/primefactorsolutions/service/EmployeeService.java
index b63bb47..c7ac471 100644
--- a/src/main/java/com/primefactorsolutions/service/EmployeeService.java
+++ b/src/main/java/com/primefactorsolutions/service/EmployeeService.java
@@ -1,5 +1,4 @@
 package com.primefactorsolutions.service;
-import com.google.common.base.Strings;
 import com.primefactorsolutions.model.Employee;
 import jakarta.persistence.EntityManager;
 import lombok.AllArgsConstructor;
diff --git a/src/main/java/com/primefactorsolutions/views/EmployeeView.java b/src/main/java/com/primefactorsolutions/views/EmployeeView.java
index 1e15de9..e717138 100644
--- a/src/main/java/com/primefactorsolutions/views/EmployeeView.java
+++ b/src/main/java/com/primefactorsolutions/views/EmployeeView.java
@@ -396,7 +396,7 @@ public class EmployeeView extends BeanValidationForm<Employee> implements HasUrl
         return textField;
     }
 
-    private void handleContractTypeChange(Employee.ContractType selectedType) {
+    private void handleContractTypeChange(final Employee.ContractType selectedType) {
         if (selectedType == Employee.ContractType.OTROS) {
             customContractType.setVisible(true);
             customContractType.setRequired(true);