Drop back to Hibernate 5.0.9.Final

The upgrade to Hibernate 5.2.0.Final has provide to be too
problematic to live with. It requires Java 8, is incompatible with
a number of other projects in the Hibernate ecosystem, and it's
unclear for how long it will be maintained. We'd previously used
Hibernate 5.1.0.Final but its maintenance is also unclear with
Hibernate 5.1.1.Final being more than 3 months overdue.

This commit drops back to Hibernate 5.0.9.Final. This has a few
advantages:

- It's Java 7 compatible
- It's had some time to mature and should be reasonably free of
  regressions for those moving from 4.3.x
- It's used in both Wildfly and JBoss EAP so there's a fair chance
  that it will continue to be maintained.

Closes gh-6198

spring-boot-samples/spring-boot-sample-hibernate52/src/test/java/sample/hibernate52/SampleHibernate52ApplicationTests.java

@@ -0,0 +1,80 @@
+/*
+ * Copyright 2012-2016 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.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sample.hibernate52;
+
+import java.lang.management.ManagementFactory;
+
+import javax.management.ObjectName;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.TestPropertySource;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+import org.springframework.web.context.WebApplicationContext;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+/**
+ * Integration test to run the application.
+ *
+ * @author Oliver Gierke
+ * @author Dave Syer
+ */
+@RunWith(SpringRunner.class)
+@SpringBootTest
+// Enable JMX so we can test the MBeans (you can't do this in a properties file)
+@TestPropertySource(properties = { "spring.jmx.enabled:true",
+		"spring.datasource.jmx-enabled:true" })
+@ActiveProfiles("scratch")
+// Separate profile for web tests to avoid clashing databases
+public class SampleHibernate52ApplicationTests {
+
+	@Autowired
+	private WebApplicationContext context;
+
+	private MockMvc mvc;
+
+	@Before
+	public void setUp() {
+		this.mvc = MockMvcBuilders.webAppContextSetup(this.context).build();
+	}
+
+	@Test
+	public void testHome() throws Exception {
+
+		this.mvc.perform(get("/")).andExpect(status().isOk())
+				.andExpect(content().string("Bath"));
+	}
+
+	@Test
+	public void testJmx() throws Exception {
+		assertThat(ManagementFactory.getPlatformMBeanServer()
+				.queryMBeans(new ObjectName("jpa.sample:type=ConnectionPool,*"), null))
+						.hasSize(1);
+	}
+
+}

spring-boot-samples/spring-boot-sample-hibernate52/src/test/java/sample/hibernate52/service/CityRepositoryIntegrationTests.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2012-2016 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.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package sample.hibernate52.service;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import sample.hibernate52.domain.City;
+import sample.hibernate52.service.CityRepository;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Integration tests for {@link CityRepository}.
+ *
+ * @author Oliver Gierke
+ */
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class CityRepositoryIntegrationTests {
+
+	@Autowired
+	CityRepository repository;
+
+	@Test
+	public void findsFirstPageOfCities() {
+
+		Page<City> cities = this.repository.findAll(new PageRequest(0, 10));
+		assertThat(cities.getTotalElements()).isGreaterThan(20L);
+	}
+}

spring-boot-samples/spring-boot-sample-hibernate52/src/test/java/sample/hibernate52/service/HotelRepositoryIntegrationTests.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright 2012-2016 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.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package sample.hibernate52.service;
+
+import java.util.List;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import sample.hibernate52.domain.City;
+import sample.hibernate52.domain.Hotel;
+import sample.hibernate52.domain.HotelSummary;
+import sample.hibernate52.domain.Rating;
+import sample.hibernate52.domain.RatingCount;
+import sample.hibernate52.service.CityRepository;
+import sample.hibernate52.service.HotelRepository;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Sort.Direction;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Integration tests for {@link HotelRepository}.
+ *
+ * @author Oliver Gierke
+ */
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class HotelRepositoryIntegrationTests {
+
+	@Autowired
+	CityRepository cityRepository;
+	@Autowired
+	HotelRepository repository;
+
+	@Test
+	public void executesQueryMethodsCorrectly() {
+		City city = this.cityRepository
+				.findAll(new PageRequest(0, 1, Direction.ASC, "name")).getContent()
+				.get(0);
+		assertThat(city.getName()).isEqualTo("Atlanta");
+
+		Page<HotelSummary> hotels = this.repository.findByCity(city,
+				new PageRequest(0, 10, Direction.ASC, "name"));
+		Hotel hotel = this.repository.findByCityAndName(city,
+				hotels.getContent().get(0).getName());
+		assertThat(hotel.getName()).isEqualTo("Doubletree");
+
+		List<RatingCount> counts = this.repository.findRatingCounts(hotel);
+		assertThat(counts).hasSize(1);
+		assertThat(counts.get(0).getRating()).isEqualTo(Rating.AVERAGE);
+		assertThat(counts.get(0).getCount()).isGreaterThan(1L);
+	}
+}

spring-boot-samples/spring-boot-sample-hibernate52/src/test/resources/application-scratch.properties

@@ -0,0 +1,2 @@
+spring.datasource.name=scratchdb
+spring.jmx.default-domain=jpa.sample