Migrate to JSpecify annotations for nullability constraints.

Closes #528

Author: mp911de

pom.xml

@@ -95,6 +95,11 @@
 			<version>${cdi}</version>
 			<optional>true</optional>
 		</dependency>
+		<dependency>
+			<groupId>org.jspecify</groupId>
+			<artifactId>jspecify</artifactId>
+			<version>1.0.0</version>
+		</dependency>
 
 		<dependency>
 			<groupId>jakarta.annotation</groupId>

src/main/java/org/springframework/data/ldap/config/package-info.java

@@ -1,7 +1,5 @@
 /**
  * XML configuration support for Spring Data LDAP repositories.
  */
-@NonNullApi
+@org.jspecify.annotations.NullMarked
 package org.springframework.data.ldap.config;
-
-import org.springframework.lang.NonNullApi;

src/main/java/org/springframework/data/ldap/core/mapping/BasicLdapPersistentEntity.java

@@ -35,4 +35,5 @@ public class BasicLdapPersistentEntity<T> extends BasicPersistentEntity<T, LdapP
 	public BasicLdapPersistentEntity(TypeInformation<T> information) {
 		super(information);
 	}
+
 }

src/main/java/org/springframework/data/ldap/core/mapping/LdapMappingContext.java

@@ -45,4 +45,5 @@ protected LdapPersistentProperty createPersistentProperty(Property property, Bas
 			SimpleTypeHolder simpleTypeHolder) {
 		return new LdapPersistentProperty(property, owner, simpleTypeHolder);
 	}
+
 }

src/main/java/org/springframework/data/ldap/core/mapping/LdapPersistentProperty.java

@@ -48,11 +48,12 @@ public LdapPersistentProperty(Property property, PersistentEntity<?, LdapPersist
 
 	@Override
 	protected Association<LdapPersistentProperty> createAssociation() {
-		return null;
+		throw new UnsupportedOperationException("LDAP does not support associations");
 	}
 
 	@Override
 	public boolean isIdProperty() {
 		return isId.get();
 	}
+
 }

src/main/java/org/springframework/data/ldap/core/mapping/LdapSimpleTypes.java

@@ -44,4 +44,5 @@ public abstract class LdapSimpleTypes {
 	public static final SimpleTypeHolder HOLDER = new SimpleTypeHolder(VAULT_SIMPLE_TYPES, true);
 
 	private LdapSimpleTypes() {}
+
 }

src/main/java/org/springframework/data/ldap/core/mapping/package-info.java

@@ -1,6 +1,5 @@
 /**
  * Infrastructure for the LDAP object mapping subsystem.
  */
-@org.springframework.lang.NonNullApi
-@org.springframework.lang.NonNullFields
+@org.jspecify.annotations.NullMarked
 package org.springframework.data.ldap.core.mapping;

src/main/java/org/springframework/data/ldap/repository/LdapEncoder.java

@@ -49,6 +49,7 @@ class NameEncoder implements LdapEncoder {
 		public String encode(String value) {
 			return org.springframework.ldap.support.LdapEncoder.nameEncode(value);
 		}
+
 	}
 
 	/**
@@ -79,6 +80,7 @@ public String encode(String value) {
 
 			return buff.toString();
 		}
+
 	}
 
 }

src/main/java/org/springframework/data/ldap/repository/LdapRepository.java

@@ -48,4 +48,5 @@ public interface LdapRepository<T> extends ListCrudRepository<T, Name> {
 	 * @return the entries matching the query.
 	 */
 	List<T> findAll(LdapQuery ldapQuery);
+
 }

src/main/java/org/springframework/data/ldap/repository/Query.java

@@ -75,4 +75,5 @@
 	 * @return the count limit.
 	 */
 	int countLimit() default 0;
+
 }