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Polishing. 

Use ObjectUtils for empty check.

See #3623
Original pull request: #3625.
3.0.x
Mark Paluch 5 years ago
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d62639d11c
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28fc1e4823
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1 changed files with 2 additions and 1 deletions
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  1. 3
      spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/AggregationUtils.java

3
spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/AggregationUtils.java
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@ -39,6 +39,7 @@ import org.springframework.data.repository.query.QueryMethodEvaluationContextPro
import org.springframework.expression.spel.standard.SpelExpressionParser; import org.springframework.expression.spel.standard.SpelExpressionParser;
import org.springframework.lang.Nullable; import org.springframework.lang.Nullable;
import org.springframework.util.ClassUtils; import org.springframework.util.ClassUtils;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils; import org.springframework.util.StringUtils;
/** /**
@ -198,7 +199,7 @@ class AggregationUtils {
@Nullable @Nullable
static <T> T extractSimpleTypeResult(@Nullable Document source, Class<T> targetType, MongoConverter converter) { static <T> T extractSimpleTypeResult(@Nullable Document source, Class<T> targetType, MongoConverter converter) {
if (source == null || source.isEmpty()) { if (ObjectUtils.isEmpty(source)) {
return null; return null;
} }

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