Polishing.

Move off deprecated classes. Add unpaged testcase for query by example.

Original Pull Request: spring-projects#3754

Author: mp911de

Diff for: spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/support/QuerydslMongoPredicateExecutor.java

@@ -27,7 +27,7 @@
 import org.springframework.data.querydsl.EntityPathResolver;
 import org.springframework.data.querydsl.QuerydslPredicateExecutor;
 import org.springframework.data.querydsl.SimpleEntityPathResolver;
-import org.springframework.data.repository.support.PageableExecutionUtils;
+import org.springframework.data.support.PageableExecutionUtils;
 import org.springframework.util.Assert;
 
 import com.querydsl.core.NonUniqueResultException;

Diff for: spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/support/SimpleMongoRepository.java

@@ -36,7 +36,7 @@
 import org.springframework.data.mongodb.core.query.Query;
 import org.springframework.data.mongodb.repository.MongoRepository;
 import org.springframework.data.mongodb.repository.query.MongoEntityInformation;
-import org.springframework.data.repository.support.PageableExecutionUtils;
+import org.springframework.data.support.PageableExecutionUtils;
 import org.springframework.data.util.StreamUtils;
 import org.springframework.data.util.Streamable;
 import org.springframework.lang.Nullable;

Diff for: spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/support/SimpleMongoRepositoryTests.java

@@ -30,10 +30,11 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
+
 import org.springframework.data.domain.Example;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
-import org.springframework.data.domain.ExampleMatcher.*;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.geo.Point;
 import org.springframework.data.mongodb.MongoTransactionManager;
 import org.springframework.data.mongodb.core.geo.GeoJsonPoint;
@@ -177,6 +178,19 @@ void findByExampleShouldLookUpEntriesCorrectly() {
 		assertThat(result.getTotalPages()).isEqualTo(1);
 	}
 
+	@Test // GH-3751
+	void findByExampleShouldReturnUnpagedResults() {
+
+		Person sample = new Person();
+		sample.setLastname("Matthews");
+		trimDomainType(sample, "id", "createdAt", "email");
+
+		Page<Person> result = repository.findAll(Example.of(sample), Pageable.unpaged());
+
+		assertThat(result.getContent()).hasSize(2).contains(dave, oliver);
+		assertThat(result.getTotalPages()).isEqualTo(1);
+	}
+
 	@Test // DATAMONGO-1464
 	void findByExampleMultiplePagesShouldLookUpEntriesCorrectly() {