Getting message "Attempt to define a second primary key". When running #DataJpaTest - spring-boot

Question

I don't know exactly why, but I am getting this message from Flyway evolution in H2 database. It's a #DataJpaTest spring boot test.
Seems like some dialect stuff is not being respected.
Attempt to define a second primary key; SQL statement:
#RunWith(SpringRunner.class)
#DataJpaTest
#FlywayTest
public class ParagraphStoreTest {
#Autowired
private TestEntityManager entityManager;
#Autowired
private ParagraphStore paragraphStore;
#Test
public void testExample() throws Exception {
long scanId = 123;
long userId = 1234;
int minParagraphLength = 1;
int pageNumber = 1;
int pageSize = 50;
Pageable pageable = new PageRequest(pageNumber, pageSize, Direction.ASC, "paragraphIndex");
this.entityManager.persist(Paragraph.builder().scan(Scan.builder().id(scanId).urlId(userId).build())
.paragraphIndex(1).wordCount(1));
Page<Paragraph> paragraphs = this.paragraphStore.findAllParagraphStatsByScanIdLimit(scanId, userId,
minParagraphLength, pageable);
assertNotNull(paragraphs);
}
}
Exception
rror starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-06-30 16:21:32 [main] ERROR o.s.boot.SpringApplication - Application startup failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flywayInitializer' defined in class path resource [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]: Invocation of init method failed; nested exception is org.flywaydb.core.internal.dbsupport.FlywaySqlScriptException:
Migration V1__Init.sql failed
-----------------------------
SQL State : 90017
Error Code : 90017
Message : Attempt to define a second primary key; SQL statement:
CREATE TABLE users (
id serial NOT NULL,
user_name varchar(160) NOT NULL,
user_pass varchar(160) NOT NULL,
first_name varchar(160) NULL,
last_name varchar(160) NULL,
last_sign_in date NULL,
preferences text NOT NULL DEFAULT '{}'::text,
CONSTRAINT users_pkey PRIMARY KEY (user_name)
) [90017-148]
Location : db/migration/V1__Init.sql (C:\Users\victo\Documents\dev\projects\readability-dev\bin\db\migration\V1__Init.sql)
Line : 1
Statement : CREATE TABLE users (
id serial NOT NULL,
user_name varchar(160) NOT NULL,
user_pass varchar(160) NOT NULL,
first_name varchar(160) NULL,
last_name varchar(160) NULL,
last_sign_in date NULL,
preferences text NOT NULL DEFAULT '{}'::text,
CONSTRAINT users_pkey PRIMARY KEY (user_name)
)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:296)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1081)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:856)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:120)
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98)
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116)
at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:117)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83)
at org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener.prepareTestInstance(SpringBootDependencyInjectionTestExecutionListener.java:44)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:228)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: org.flywaydb.core.internal.dbsupport.FlywaySqlScriptException:
User.java
#Entity
#Table(name="users")
#AllArgsConstructor(access = AccessLevel.PROTECTED)
#NoArgsConstructor
#ToString(callSuper=true)
#Builder
public class User {
#Id
#Getter #Setter
#GeneratedValue(strategy=GenerationType.SEQUENCE, generator="users_id_seq")
#SequenceGenerator(name="users_id_seq", sequenceName="users_id_seq")
private Long id;
#Getter #Setter
private String socialId;
#Getter #Setter
private boolean IsEmailActivationRequired;
#Getter #Setter
private String firstName;
#Getter #Setter
private String lastName;
#Getter #Setter
private String userName;
#Getter #Setter
private String userPass;
#Email
#NotNull
#NotEmpty
#Getter #Setter
private String userEmail;
}

Answer 1

According to Google Groups "H2
Database" group distribution list serial columns are automatically treated as PK in normal H2 mode, so you need to set a specific compatibility mode to your H2 configuration.
Available compatibility modes
e.g. to use PostgreSQL:
url: jdbc:h2:mem:default;MODE=PostgreSQL;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE