DATAREDIS-909 - Fix constructor creation of entities with collection-typed properties.

We now consider the property type in value conversion for constructor arguments to provide the appropriate value type. Previously, we considered the component type which converted a Collection<T> to a single T that caused downstream ClassCastException.

Original Pull Request: #378

src/test/java/org/springframework/data/redis/core/convert/ConversionTestEntities.java

@@ -15,6 +15,7 @@
  */
 package org.springframework.data.redis.core.convert;
 
+import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 
@@ -31,6 +32,7 @@ import java.util.Date;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 import java.util.concurrent.TimeUnit;
 
 import org.springframework.data.annotation.Id;
@@ -213,4 +215,11 @@ public class ConversionTestEntities {
 		Map<Double, String> decimalMapKeyMapping;
 		Map<Date, String> dateMapKeyMapping;
 	}
+
+	@AllArgsConstructor
+	static class Device {
+
+		final Instant now;
+		final Set<String> profiles;
+	}
 }

src/test/java/org/springframework/data/redis/core/convert/MappingRedisConverterUnitTests.java

@@ -1472,6 +1472,18 @@ public class MappingRedisConverterUnitTests {
 		assertThat(result.list.get(2), instanceOf(Date.class));
 	}
 
+	@Test // DATAREDIS-909
+	public void shouldWriteReadObjectWithConstructorConversion() {
+
+		Device sample = new Device(Instant.now(), Collections.singleton("foo"));
+
+		RedisData rd = write(sample);
+
+		Device result = converter.read(Device.class, rd);
+		assertThat(result.now, equalTo(sample.now));
+		assertThat(result.profiles, equalTo(sample.profiles));
+	}
+
 	@Test // DATAREDIS-509
 	public void writeHandlesArraysOfPrimitivesProperly() {