OZG-6432 Code verbessert

nachrichten-manager-server/src/main/java/de/ozgcloud/nachrichten/antragraum/BayernIdSamlConfiguration.java

@@ -38,8 +38,6 @@ import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
 
-import jakarta.annotation.PostConstruct;
-
 import org.opensaml.core.config.ConfigurationService;
 import org.opensaml.core.config.InitializationService;
 import org.opensaml.core.criterion.EntityIdCriterion;
@@ -72,6 +70,7 @@ import org.springframework.security.saml2.Saml2Exception;
 import org.springframework.security.saml2.core.Saml2X509Credential;
 import org.springframework.util.Assert;
 
+import jakarta.annotation.PostConstruct;
 import lombok.Getter;
 import net.shibboleth.utilities.java.support.component.ComponentInitializationException;
 import net.shibboleth.utilities.java.support.resolver.CriteriaSet;
@@ -139,7 +138,7 @@ class BayernIdSamlConfiguration {
 
 		CredentialResolver credentialsResolver = new CollectionCredentialResolver(credentials);
 		return new ExplicitKeySignatureTrustEngine(credentialsResolver,
-		  DefaultSecurityConfigurationBootstrap.buildBasicInlineKeyInfoCredentialResolver());
+				DefaultSecurityConfigurationBootstrap.buildBasicInlineKeyInfoCredentialResolver());
 	}
 
 	CriteriaSet getVerificationCriteria() {
@@ -209,10 +208,10 @@ class BayernIdSamlConfiguration {
 
 	private Optional<EntityDescriptor> findEntityDescriptor(XMLObject metadata) {
 		Optional<EntityDescriptor> descriptor = Optional.empty();
-		if (metadata instanceof EntityDescriptor) {
-			descriptor = Optional.of((EntityDescriptor) metadata);
-		} else if (metadata instanceof EntitiesDescriptor) {
-			descriptor = ((EntitiesDescriptor) metadata).getEntityDescriptors().stream().findFirst();
+		if (metadata instanceof EntityDescriptor entityDescritor) {
+			descriptor = Optional.of(entityDescritor);
+		} else if (metadata instanceof EntitiesDescriptor entitiesDescriptor) {
+			descriptor = entitiesDescriptor.getEntityDescriptors().stream().findFirst();
 		}
 
 		return descriptor.filter(entityDescriptor -> entityDescriptor.getIDPSSODescriptor(SAMLConstants.SAML20P_NS) != null).stream().findFirst();
@@ -234,7 +233,7 @@ class BayernIdSamlConfiguration {
 		}
 		if (verification.isEmpty()) {
 			throw new Saml2Exception(
-			  "Metadata response is missing verification certificates, necessary for verifying SAML assertions");
+					"Metadata response is missing verification certificates, necessary for verifying SAML assertions");
 		}
 
 		return verification;