DATAREDIS-481 - Remove Nullable annotation use.

Will be re-introduced at a later stage across the whole code base.

Author: mp911de

src/main/java/org/springframework/data/redis/cache/RedisCache.java

@@ -25,7 +25,6 @@
 import org.springframework.core.convert.support.ConfigurableConversionService;
 import org.springframework.data.redis.serializer.JdkSerializationRedisSerializer;
 import org.springframework.format.support.DefaultFormattingConversionService;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
 
@@ -46,7 +45,7 @@ public class RedisCache extends AbstractValueAdaptingCache {
 
 	/**
 	 * Create new {@link RedisCache}.
-	 * 
+	 *
 	 * @param name must not be {@literal null}.
 	 * @param cacheWriter must not be {@literal null}.
 	 * @param cacheConfig must not be {@literal null}.
@@ -164,8 +163,8 @@ public RedisCacheConfiguration getCacheConfiguration() {
 	 * @param value can be {@literal null}.
 	 * @return preprocessed value. Can be {@literal null}.
 	 */
-	@Nullable
-	protected Object preProcessCacheValue(@Nullable Object value) {
+
+	protected Object preProcessCacheValue(Object value) {
 
 		if (value != null) {
 			return value;
@@ -186,7 +185,7 @@ protected byte[] serializeCacheKey(String cacheKey) {
 
 	/**
 	 * Serialize the value to cache.
-	 * 
+	 *
 	 * @param value must not be {@literal null}.
 	 * @return never {@literal null}.
 	 */
@@ -205,7 +204,7 @@ protected byte[] serializeCacheValue(Object value) {
 	 * @param value must not be {@literal null}.
 	 * @return can be {@literal null}.
 	 */
-	@Nullable
+
 	protected Object deserializeCacheValue(byte[] value) {
 
 		if (isAllowNullValues() && ObjectUtils.nullSafeEquals(value, BINARY_NULL_VALUE)) {

src/main/java/org/springframework/data/redis/cache/RedisCacheManager.java

@@ -26,7 +26,6 @@
 
 import org.springframework.cache.transaction.AbstractTransactionSupportingCacheManager;
 import org.springframework.data.redis.connection.RedisConnectionFactory;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.CollectionUtils;
 
@@ -175,7 +174,7 @@ public Map<String, RedisCacheConfiguration> getCacheConfigurations() {
 	 * @param cacheConfig can be {@literal null}.
 	 * @return never {@literal null}.
 	 */
-	protected RedisCache createRedisCache(String name, @Nullable RedisCacheConfiguration cacheConfig) {
+	protected RedisCache createRedisCache(String name, RedisCacheConfiguration cacheConfig) {
 		return new RedisCache(name, cacheWriter, cacheConfig != null ? cacheConfig : defaultCacheConfig);
 	}
 

src/main/java/org/springframework/data/redis/cache/RedisCacheWriter.java

@@ -17,8 +17,6 @@
 
 import java.time.Duration;
 
-import org.springframework.lang.Nullable;
-
 /**
  * {@link RedisCacheWriter} provides low level access to redis commands ({@code SET, SETNX, GET, EXPIRE,...} used for
  * caching. <br />
@@ -38,7 +36,7 @@ public interface RedisCacheWriter {
 	 * @param value The value stored for the key. Must not be {@literal null}.
 	 * @param ttl Optional expiration time. Can be {@literal null}.
 	 */
-	void put(String name, byte[] key, byte[] value, @Nullable Duration ttl);
+	void put(String name, byte[] key, byte[] value, Duration ttl);
 
 	/**
 	 * Get the binary value representation from Redis stored for the given key.
@@ -47,20 +45,20 @@ public interface RedisCacheWriter {
 	 * @param key must not be {@literal null}.
 	 * @return {@literal null} if key does not exist.
 	 */
-	@Nullable
+
 	byte[] get(String name, byte[] key);
 
 	/**
 	 * Write the given value to Redis if the key does not already exist.
-	 * 
+	 *
 	 * @param name The cache name must not be {@literal null}.
 	 * @param key The key for the cache entry. Must not be {@literal null}.
 	 * @param value The value stored for the key. Must not be {@literal null}.
 	 * @param ttl Optional expiration time. Can be {@literal null}.
 	 * @return {@literal null} if the value has been written, the value stored for the key if it already exists.
 	 */
-	@Nullable
-	byte[] putIfAbsent(String name, byte[] key, byte[] value, @Nullable Duration ttl);
+
+	byte[] putIfAbsent(String name, byte[] key, byte[] value, Duration ttl);
 
 	/**
 	 * Remove the given key from Redis.