diff --git a/src/main/java/org/springframework/data/redis/connection/ClusterCommandExecutor.java b/src/main/java/org/springframework/data/redis/connection/ClusterCommandExecutor.java
index d1448ab00..f320d8bcf 100644
--- a/src/main/java/org/springframework/data/redis/connection/ClusterCommandExecutor.java
+++ b/src/main/java/org/springframework/data/redis/connection/ClusterCommandExecutor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2016 the original author or authors.
+ * Copyright 2015-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -73,9 +73,9 @@ public class ClusterCommandExecutor implements DisposableBean {
 	public ClusterCommandExecutor(ClusterTopologyProvider topologyProvider, ClusterNodeResourceProvider resourceProvider,
 			ExceptionTranslationStrategy exceptionTranslation) {
 
-		Assert.notNull(topologyProvider);
-		Assert.notNull(resourceProvider);
-		Assert.notNull(exceptionTranslation);
+		Assert.notNull(topologyProvider, "ClusterTopologyProvider must not be null!");
+		Assert.notNull(resourceProvider, "ClusterNodeResourceProvider must not be null!");
+		Assert.notNull(exceptionTranslation, "ExceptionTranslationStrategy must not be null!");
 
 		this.topologyProvider = topologyProvider;
 		this.resourceProvider = resourceProvider;
diff --git a/src/main/java/org/springframework/data/redis/connection/RedisSentinelConfiguration.java b/src/main/java/org/springframework/data/redis/connection/RedisSentinelConfiguration.java
index 9e7fcb49b..e9f22fa2c 100644
--- a/src/main/java/org/springframework/data/redis/connection/RedisSentinelConfiguration.java
+++ b/src/main/java/org/springframework/data/redis/connection/RedisSentinelConfiguration.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2015 the original author or authors.
+ * Copyright 2014-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -158,7 +158,7 @@ public class RedisSentinelConfiguration {
 	 */
 	public void setMaster(NamedNode master) {
 
-		notNull("Sentinel master node must not be 'null'.");
+		notNull(master, "Sentinel master node must not be 'null'.");
 		this.master = master;
 	}
 
diff --git a/src/main/java/org/springframework/data/redis/connection/jedis/JedisClusterConnection.java b/src/main/java/org/springframework/data/redis/connection/jedis/JedisClusterConnection.java
index 03dc6948c..e6e614ff0 100644
--- a/src/main/java/org/springframework/data/redis/connection/jedis/JedisClusterConnection.java
+++ b/src/main/java/org/springframework/data/redis/connection/jedis/JedisClusterConnection.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2016 the original author or authors.
+ * Copyright 2015-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -607,7 +607,7 @@ public class JedisClusterConnection implements RedisClusterConnection {
 	@Override
 	public List<byte[]> mGet(byte[]... keys) {
 
-		Assert.noNullElements(keys);
+		Assert.noNullElements(keys, "Keys must not contain null elements!");
 
 		if (ClusterSlotHashUtil.isSameSlotForAllKeys(keys)) {
 			return cluster.mget(keys);
diff --git a/src/main/java/org/springframework/data/redis/connection/jedis/JedisConnectionFactory.java b/src/main/java/org/springframework/data/redis/connection/jedis/JedisConnectionFactory.java
index 3c99800d7..0799ab8f5 100644
--- a/src/main/java/org/springframework/data/redis/connection/jedis/JedisConnectionFactory.java
+++ b/src/main/java/org/springframework/data/redis/connection/jedis/JedisConnectionFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2016 the original author or authors.
+ * Copyright 2011-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -287,7 +287,7 @@ public class JedisConnectionFactory implements InitializingBean, DisposableBean,
 	 */
 	protected JedisCluster createCluster(RedisClusterConfiguration clusterConfig, GenericObjectPoolConfig poolConfig) {
 
-		Assert.notNull("Cluster configuration must not be null!");
+		Assert.notNull(clusterConfig, "Cluster configuration must not be null!");
 
 		Set<HostAndPort> hostAndPort = new HashSet<HostAndPort>();
 		for (RedisNode node : clusterConfig.getClusterNodes()) {
@@ -610,7 +610,7 @@ public class JedisConnectionFactory implements InitializingBean, DisposableBean,
 
 	private Jedis getActiveSentinel() {
 
-		Assert.notNull(this.sentinelConfig);
+		Assert.notNull(this.sentinelConfig, "SentinelConfig must not be null!");
 
 		for (RedisNode node : this.sentinelConfig.getSentinels()) {
 
diff --git a/src/main/java/org/springframework/data/redis/connection/jedis/JedisConverters.java b/src/main/java/org/springframework/data/redis/connection/jedis/JedisConverters.java
index 73e009f4c..3ca3774fb 100644
--- a/src/main/java/org/springframework/data/redis/connection/jedis/JedisConverters.java
+++ b/src/main/java/org/springframework/data/redis/connection/jedis/JedisConverters.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2013-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -334,7 +334,7 @@ abstract public class JedisConverters extends Converters {
 	}
 
 	public static LIST_POSITION toListPosition(Position source) {
-		Assert.notNull("list positions are mandatory");
+		Assert.notNull(source, "list positions are mandatory");
 		return (Position.AFTER.equals(source) ? LIST_POSITION.AFTER : LIST_POSITION.BEFORE);
 	}
 
diff --git a/src/main/java/org/springframework/data/redis/connection/jedis/JedisUtils.java b/src/main/java/org/springframework/data/redis/connection/jedis/JedisUtils.java
index 54d9f092b..2f4820919 100644
--- a/src/main/java/org/springframework/data/redis/connection/jedis/JedisUtils.java
+++ b/src/main/java/org/springframework/data/redis/connection/jedis/JedisUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -216,7 +216,7 @@ public abstract class JedisUtils {
 	}
 
 	static LIST_POSITION convertPosition(Position where) {
-		Assert.notNull("list positions are mandatory");
+		Assert.notNull(where, "list positions are mandatory");
 		return (Position.AFTER.equals(where) ? LIST_POSITION.AFTER : LIST_POSITION.BEFORE);
 	}
 
diff --git a/src/main/java/org/springframework/data/redis/connection/lettuce/LettuceConverters.java b/src/main/java/org/springframework/data/redis/connection/lettuce/LettuceConverters.java
index 240d7943c..293d624ed 100644
--- a/src/main/java/org/springframework/data/redis/connection/lettuce/LettuceConverters.java
+++ b/src/main/java/org/springframework/data/redis/connection/lettuce/LettuceConverters.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2013-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -462,7 +462,7 @@ abstract public class LettuceConverters extends Converters {
 	}
 
 	public static boolean toBoolean(Position where) {
-		Assert.notNull("list positions are mandatory");
+		Assert.notNull(where, "list positions are mandatory");
 		return (Position.AFTER.equals(where) ? false : true);
 	}
 
diff --git a/src/main/java/org/springframework/data/redis/connection/util/AbstractSubscription.java b/src/main/java/org/springframework/data/redis/connection/util/AbstractSubscription.java
index 45169661c..9fe074689 100644
--- a/src/main/java/org/springframework/data/redis/connection/util/AbstractSubscription.java
+++ b/src/main/java/org/springframework/data/redis/connection/util/AbstractSubscription.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2017 the original author or authors.
  * 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -52,7 +52,7 @@ public abstract class AbstractSubscription implements Subscription {
 	 * @param patterns
 	 */
 	protected AbstractSubscription(MessageListener listener, byte[][] channels, byte[][] patterns) {
-		Assert.notNull(listener);
+		Assert.notNull(listener, "MessageListener must not be null!");
 		this.listener = listener;
 
 		synchronized (this.channels) {
diff --git a/src/main/java/org/springframework/data/redis/core/convert/CustomConversions.java b/src/main/java/org/springframework/data/redis/core/convert/CustomConversions.java
index d485ee6d9..b3341e8bf 100644
--- a/src/main/java/org/springframework/data/redis/core/convert/CustomConversions.java
+++ b/src/main/java/org/springframework/data/redis/core/convert/CustomConversions.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2015 the original author or authors.
+ * Copyright 2011-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -79,7 +79,7 @@ public class CustomConversions {
 	 */
 	public CustomConversions(List<?> converters) {
 
-		Assert.notNull(converters);
+		Assert.notNull(converters,"Converters must not be null!");
 
 		this.readingPairs = new LinkedHashSet<ConvertiblePair>();
 		this.writingPairs = new LinkedHashSet<ConvertiblePair>();
@@ -344,8 +344,8 @@ public class CustomConversions {
 	private static Class<?> getCustomTarget(Class<?> sourceType, Class<?> requestedTargetType,
 			Collection<ConvertiblePair> pairs) {
 
-		Assert.notNull(sourceType);
-		Assert.notNull(pairs);
+		Assert.notNull(sourceType, "SourceType must not be null!");
+		Assert.notNull(pairs, "Convertible pairs must not be null!");
 
 		if (requestedTargetType != null && pairs.contains(new ConvertiblePair(sourceType, requestedTargetType))) {
 			return requestedTargetType;
@@ -411,7 +411,7 @@ public class CustomConversions {
 		 */
 		public ConverterRegistration(ConvertiblePair convertiblePair, boolean isReading, boolean isWriting) {
 
-			Assert.notNull(convertiblePair);
+			Assert.notNull(convertiblePair, "Convertible pair must not be null!");
 
 			this.convertiblePair = convertiblePair;
 			this.reading = isReading;
diff --git a/src/main/java/org/springframework/data/redis/core/convert/KeyspaceConfiguration.java b/src/main/java/org/springframework/data/redis/core/convert/KeyspaceConfiguration.java
index f0f8b3bfa..02d6cf06b 100644
--- a/src/main/java/org/springframework/data/redis/core/convert/KeyspaceConfiguration.java
+++ b/src/main/java/org/springframework/data/redis/core/convert/KeyspaceConfiguration.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 the original author or authors.
+ * Copyright 2015-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -112,7 +112,7 @@ public class KeyspaceConfiguration {
 	 */
 	public void addKeyspaceSettings(KeyspaceSettings keyspaceSettings) {
 
-		Assert.notNull(keyspaceSettings);
+		Assert.notNull(keyspaceSettings, "KeyspaceSettings must not be null!");
 		this.settingsMap.put(keyspaceSettings.getType(), keyspaceSettings);
 	}
 
diff --git a/src/main/java/org/springframework/data/redis/core/convert/ReferenceResolverImpl.java b/src/main/java/org/springframework/data/redis/core/convert/ReferenceResolverImpl.java
index e4240de70..c5f48193d 100644
--- a/src/main/java/org/springframework/data/redis/core/convert/ReferenceResolverImpl.java
+++ b/src/main/java/org/springframework/data/redis/core/convert/ReferenceResolverImpl.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 the original author or authors.
+ * Copyright 2016-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -42,7 +42,7 @@ public class ReferenceResolverImpl implements ReferenceResolver {
 	 */
 	public ReferenceResolverImpl(RedisOperations<?, ?> redisOperations) {
 
-		Assert.notNull(redisOperations);
+		Assert.notNull(redisOperations, "RedisOperations must not be null!");
 
 		this.redisOps = redisOperations;
 		this.converter = new StringToBytesConverter();
diff --git a/src/main/java/org/springframework/data/redis/core/mapping/BasicRedisPersistentEntity.java b/src/main/java/org/springframework/data/redis/core/mapping/BasicRedisPersistentEntity.java
index 1507fed61..0e1b4cada 100644
--- a/src/main/java/org/springframework/data/redis/core/mapping/BasicRedisPersistentEntity.java
+++ b/src/main/java/org/springframework/data/redis/core/mapping/BasicRedisPersistentEntity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 the original author or authors.
+ * Copyright 2015-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -86,7 +86,7 @@ public class BasicRedisPersistentEntity<T> extends BasicKeyValuePersistentEntity
 	protected KeyValuePersistentProperty returnPropertyIfBetterIdPropertyCandidateOrNull(
 			KeyValuePersistentProperty property) {
 
-		Assert.notNull(property);
+		Assert.notNull(property, "Property must not be null!");
 
 		if (!property.isIdProperty()) {
 			return null;
diff --git a/src/main/java/org/springframework/data/redis/repository/cdi/CdiBean.java b/src/main/java/org/springframework/data/redis/repository/cdi/CdiBean.java
index 6edb0fbe9..9c9a630d8 100644
--- a/src/main/java/org/springframework/data/redis/repository/cdi/CdiBean.java
+++ b/src/main/java/org/springframework/data/redis/repository/cdi/CdiBean.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 the original author or authors.
+ * Copyright 2016-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -43,6 +43,7 @@ import org.springframework.util.StringUtils;
  * Base class for {@link Bean} wrappers.
  *
  * @author Mark Paluch
+ * @author Christoph Strobl
  */
 public abstract class CdiBean<T> implements Bean<T>, PassivationCapable {
 
@@ -76,10 +77,10 @@ public abstract class CdiBean<T> implements Bean<T>, PassivationCapable {
 	 */
 	public CdiBean(Set<Annotation> qualifiers, Set<Type> types, Class<T> beanClass, BeanManager beanManager) {
 
-		Assert.notNull(qualifiers);
-		Assert.notNull(beanManager);
-		Assert.notNull(types);
-		Assert.notNull(beanClass);
+		Assert.notNull(qualifiers, "Qualifier annotations must not be null!");
+		Assert.notNull(beanManager, "BeanManager must not be null!");
+		Assert.notNull(types, "Types must not be null!");
+		Assert.notNull(beanClass, "Bean class mast not be null!");
 
 		this.qualifiers = qualifiers;
 		this.types = types;
diff --git a/src/main/java/org/springframework/data/redis/repository/cdi/RedisKeyValueAdapterBean.java b/src/main/java/org/springframework/data/redis/repository/cdi/RedisKeyValueAdapterBean.java
index 75b761cbe..534212eac 100644
--- a/src/main/java/org/springframework/data/redis/repository/cdi/RedisKeyValueAdapterBean.java
+++ b/src/main/java/org/springframework/data/redis/repository/cdi/RedisKeyValueAdapterBean.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 the original author or authors.
+ * Copyright 2016-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -35,6 +35,7 @@ import org.springframework.util.Assert;
  * {@link CdiBean} to create {@link RedisKeyValueAdapter} instances.
  *
  * @author Mark Paluch
+ * @author Christoph Strobl
  */
 public class RedisKeyValueAdapterBean extends CdiBean<RedisKeyValueAdapter> {
 
@@ -45,14 +46,13 @@ public class RedisKeyValueAdapterBean extends CdiBean<RedisKeyValueAdapter> {
 	 *
 	 * @param redisOperations must not be {@literal null}.
 	 * @param qualifiers must not be {@literal null}.
-	 * @param repositoryType must not be {@literal null}.
 	 * @param beanManager must not be {@literal null}.
 	 */
 	public RedisKeyValueAdapterBean(Bean<RedisOperations<?, ?>> redisOperations, Set<Annotation> qualifiers,
 			BeanManager beanManager) {
 
 		super(qualifiers, RedisKeyValueAdapter.class, beanManager);
-		Assert.notNull(redisOperations);
+		Assert.notNull(redisOperations, "RedisOperations Bean must not be null!");
 		this.redisOperations = redisOperations;
 	}
 
diff --git a/src/main/java/org/springframework/data/redis/repository/cdi/RedisKeyValueTemplateBean.java b/src/main/java/org/springframework/data/redis/repository/cdi/RedisKeyValueTemplateBean.java
index ac8159985..5e932b15e 100644
--- a/src/main/java/org/springframework/data/redis/repository/cdi/RedisKeyValueTemplateBean.java
+++ b/src/main/java/org/springframework/data/redis/repository/cdi/RedisKeyValueTemplateBean.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 the original author or authors.
+ * Copyright 2016-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -34,6 +34,7 @@ import org.springframework.util.Assert;
  * {@link CdiBean} to create {@link RedisKeyValueTemplate} instances.
  *
  * @author Mark Paluch
+ * @author Christoph Strobl
  */
 public class RedisKeyValueTemplateBean extends CdiBean<KeyValueOperations> {
 
@@ -50,7 +51,7 @@ public class RedisKeyValueTemplateBean extends CdiBean<KeyValueOperations> {
 			BeanManager beanManager) {
 
 		super(qualifiers, KeyValueOperations.class, beanManager);
-		Assert.notNull(keyValueAdapter);
+		Assert.notNull(keyValueAdapter, "KeyValueAdapter bean must not be null!");
 		this.keyValueAdapter = keyValueAdapter;
 	}
 
diff --git a/src/main/java/org/springframework/data/redis/repository/cdi/RedisRepositoryBean.java b/src/main/java/org/springframework/data/redis/repository/cdi/RedisRepositoryBean.java
index 34ce96359..b805ca068 100644
--- a/src/main/java/org/springframework/data/redis/repository/cdi/RedisRepositoryBean.java
+++ b/src/main/java/org/springframework/data/redis/repository/cdi/RedisRepositoryBean.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 the original author or authors.
+ * Copyright 2016-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -34,6 +34,7 @@ import org.springframework.util.Assert;
  * {@link CdiRepositoryBean} to create Redis repository instances.
  *
  * @author Mark Paluch
+ * @author Christoph Strobl
  */
 public class RedisRepositoryBean<T> extends CdiRepositoryBean<T> {
 
@@ -53,7 +54,7 @@ public class RedisRepositoryBean<T> extends CdiRepositoryBean<T> {
 			Class<T> repositoryType, BeanManager beanManager, CustomRepositoryImplementationDetector detector) {
 
 		super(qualifiers, repositoryType, beanManager, detector);
-		Assert.notNull(keyValueTemplate);
+		Assert.notNull(keyValueTemplate, "Bean holding keyvalue template must not be null!");
 		this.keyValueTemplate = keyValueTemplate;
 	}
 
diff --git a/src/main/java/org/springframework/data/redis/serializer/GenericToStringSerializer.java b/src/main/java/org/springframework/data/redis/serializer/GenericToStringSerializer.java
index 067ed077c..666d53331 100644
--- a/src/main/java/org/springframework/data/redis/serializer/GenericToStringSerializer.java
+++ b/src/main/java/org/springframework/data/redis/serializer/GenericToStringSerializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2017 the original author or authors.
  * 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -33,6 +33,7 @@ import org.springframework.util.Assert;
  * bean. <b>Note:</b> Does not handle nulls in any special way delegating everything to the container.
  * 
  * @author Costin Leau
+ * @author Christoph Strobl
  */
 public class GenericToStringSerializer<T> implements RedisSerializer<T>, BeanFactoryAware {
 
@@ -45,7 +46,7 @@ public class GenericToStringSerializer<T> implements RedisSerializer<T>, BeanFac
 	}
 
 	public GenericToStringSerializer(Class<T> type, Charset charset) {
-		Assert.notNull(type);
+		Assert.notNull(type, "tyoe must not be null!");
 		this.type = type;
 		this.charset = charset;
 	}
diff --git a/src/main/java/org/springframework/data/redis/serializer/JdkSerializationRedisSerializer.java b/src/main/java/org/springframework/data/redis/serializer/JdkSerializationRedisSerializer.java
index a0071ffef..e7fde0c23 100644
--- a/src/main/java/org/springframework/data/redis/serializer/JdkSerializationRedisSerializer.java
+++ b/src/main/java/org/springframework/data/redis/serializer/JdkSerializationRedisSerializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2016 the original author or authors.
+ * Copyright 2011-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -30,6 +30,7 @@ import org.springframework.util.Assert;
  * @author Mark Pollack
  * @author Costin Leau
  * @author Mark Paluch
+ * @author Christoph Strobl
  */
 public class JdkSerializationRedisSerializer implements RedisSerializer<Object> {
 
@@ -63,8 +64,8 @@ public class JdkSerializationRedisSerializer implements RedisSerializer<Object>
 	 */
 	public JdkSerializationRedisSerializer(Converter<Object, byte[]> serializer, Converter<byte[], Object> deserializer) {
 
-		Assert.notNull("Serializer must not be null!");
-		Assert.notNull("Deserializer must not be null!");
+		Assert.notNull(serializer, "Serializer must not be null!");
+		Assert.notNull(deserializer, "Deserializer must not be null!");
 
 		this.serializer = serializer;
 		this.deserializer = deserializer;
diff --git a/src/main/java/org/springframework/data/redis/serializer/StringRedisSerializer.java b/src/main/java/org/springframework/data/redis/serializer/StringRedisSerializer.java
index 14a24562d..5aa898840 100644
--- a/src/main/java/org/springframework/data/redis/serializer/StringRedisSerializer.java
+++ b/src/main/java/org/springframework/data/redis/serializer/StringRedisSerializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2017 the original author or authors.
  * 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,6 +28,7 @@ import org.springframework.util.Assert;
  * Does not perform any null conversion since empty strings are valid keys/values.
  * 
  * @author Costin Leau
+ * @author Christoph Strobl
  */
 public class StringRedisSerializer implements RedisSerializer<String> {
 
@@ -38,7 +39,7 @@ public class StringRedisSerializer implements RedisSerializer<String> {
 	}
 
 	public StringRedisSerializer(Charset charset) {
-		Assert.notNull(charset);
+		Assert.notNull(charset, "Charset must not be null!");
 		this.charset = charset;
 	}