optimize imports

src/main/java/wtf/beatrice/releasehive/config/ApplicationConfiguration.java

@@ -7,14 +7,11 @@ import org.springframework.security.authentication.AuthenticationManager;
 import org.springframework.security.authentication.AuthenticationProvider;
 import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
 import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
-import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.security.core.userdetails.UserDetailsService;
 import org.springframework.security.core.userdetails.UsernameNotFoundException;
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import wtf.beatrice.releasehive.repositories.UserRepository;
 
-import java.util.function.Supplier;
-
 @Configuration
 public class ApplicationConfiguration
 {

src/main/java/wtf/beatrice/releasehive/config/InternalConfiguration.java

@@ -2,6 +2,11 @@ package wtf.beatrice.releasehive.config;
 
 public class InternalConfiguration
 {
+
+private InternalConfiguration() {
+    throw new IllegalStateException("Utility class");
+}
+
     public static final String EMAIL_REGEX_RCF = "(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|\"(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21\\x23-\\x5b\\x5d-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])*\")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\\[(?:(?:(2(5[0-5]|[0-4][0-9])|1[0-9][0-9]|[1-9]?[0-9]))\\.){3}(?:(2(5[0-5]|[0-4][0-9])|1[0-9][0-9]|[1-9]?[0-9])|[a-z0-9-]*[a-z0-9]:(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21-\\x5a\\x53-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])+)\\])";
     public static final String USERNAME_REGEX = "^[a-zA-Z0-9_-]{3,16}$";
     public static final String PASSWORD_REGEX = "^.{6,128}$";

src/main/java/wtf/beatrice/releasehive/resources/AuthResource.java

@@ -2,7 +2,6 @@ package wtf.beatrice.releasehive.resources;
 
 import org.apache.coyote.BadRequestException;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;

src/main/java/wtf/beatrice/releasehive/services/AccountServiceImpl.java

@@ -2,8 +2,6 @@ package wtf.beatrice.releasehive.services;
 
 import org.apache.coyote.BadRequestException;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.ResponseEntity;
 import org.springframework.security.authentication.AuthenticationManager;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 import org.springframework.security.crypto.password.PasswordEncoder;
@@ -11,7 +9,6 @@ import org.springframework.stereotype.Service;
 import wtf.beatrice.releasehive.config.InternalConfiguration;
 import wtf.beatrice.releasehive.dtos.LoginUserDto;
 import wtf.beatrice.releasehive.dtos.RegisterUserDto;
-import wtf.beatrice.releasehive.exceptions.HiveException;
 import wtf.beatrice.releasehive.models.User;
 import wtf.beatrice.releasehive.repositories.UserRepository;