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how to solve my database problem? (MappingException)

I'm studying spring boot 2 and hibernate 5.
This time, I used two tables and the one to many relationship.
The error occurs here.
I already found some tips in stackoverflow, such as modifying application.properties, creating a middle table named users_sites.
However, it didn't solve my problem.
These are my databases.
CREATE TABLE `sites` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar(45) DEFAULT NULL,
`siteURL` varchar(255) NOT NULL,
PRIMARY KEY (`id`),
KEY `username_idx` (`username`),
CONSTRAINT `username` FOREIGN KEY (`username`) REFERENCES `users` (`username`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
CREATE TABLE `users` (
`username` varchar(45) NOT NULL,
`password` varchar(255) NOT NULL,
PRIMARY KEY (`username`),
UNIQUE KEY `id_UNIQUE` (`username`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
These are my model calsses.
Entity
#Table(name = "users")
#EntityListeners(AuditingEntityListener.class)
public class User {
private String username;
private String password;
#OneToMany(mappedBy = "user", cascade = CascadeType.ALL)
#JoinColumn(name="username")
private List<Site> sites = new ArrayList<Site>();
public User() {
}
public User(String username, String password) {
setUsername(username);
setPassword(password);
}
#Id
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
#Column(name = "password", nullable = false)
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public List<Site> getSites() {
return sites;
}
public void setSites(List<Site> sites) {
this.sites = sites;
}
public void addSite(Site site) {
this.sites.add(site);
}
}
#Entity
#Table(name = "sites")
#EntityListeners(AuditingEntityListener.class)
#IdClass(Site.class)
public class Site implements Serializable{
private long id;
private User user;
private String siteURL;
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
#ManyToOne
#JoinColumn(name="username", referencedColumnName = "username", insertable = false, updatable = false)
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
#Column(name = "siteURL", nullable = false)
public String getSiteURL() {
return siteURL;
}
public void setSiteURL(String siteName) {
this.siteURL = siteName;
}
}
The error message is here.
java.lang.IllegalStateException: Failed to load ApplicationContext
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:125) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:108) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:118) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener.prepareTestInstance(SpringBootDependencyInjectionTestExecutionListener.java:44) ~[spring-boot-test-autoconfigure-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:246) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:227) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) ~[junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:246) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) ~[junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) ~[junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) ~[junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) ~[junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) ~[junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) ~[junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:89) ~[.cp/:na]
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41) ~[.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:541) ~[.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:763) ~[.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:463) ~[.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:209) ~[.cp/:na]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not determine type for: java.util.List, at table: users, for columns: [org.hibernate.mapping.Column(sites)]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1778) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1105) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142) ~[spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) ~[spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) ~[spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:127) ~[spring-boot-test-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:117) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
... 26 common frames omitted
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not determine type for: java.util.List, at table: users, for columns: [org.hibernate.mapping.Column(sites)]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:402) ~[spring-orm-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:377) ~[spring-orm-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1837) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1774) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
... 42 common frames omitted
Caused by: org.hibernate.MappingException: Could not determine type for: java.util.List, at table: users, for columns: [org.hibernate.mapping.Column(sites)]
at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:486) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:453) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.mapping.Property.isValid(Property.java:226) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:624) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.mapping.RootClass.validate(RootClass.java:267) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.boot.internal.MetadataImpl.validate(MetadataImpl.java:347) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:466) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:939) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:57) ~[spring-orm-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:390) ~[spring-orm-5.1.6.RELEASE.jar:5.1.6.RELEASE]
... 46 common frames omitted
How can I solve it?
Help me.
Thanks for answers.
I solved my problem with checked answer.
Then, however, I got new problem that not saved site information at the user in the database. (Understandably, I can't load site information from user.)
(Actually it was restful study.)
This is my test code.
#Test
public void test() {
Site site1 = new Site();
site1.setSiteURL("www.test.com");
Site site2 = new Site();
site2.setSiteURL("www.test1.com");
restTemplate.postForEntity(getRootUrl()+ "/sites", site1, Site.class);
restTemplate.postForEntity(getRootUrl()+ "/sites", site2, Site.class);
User user1 = new User();
user1.setUsername("1111");
user1.setPassword("12131");
user1.addSite(site1);
user1.addSite(site2);
User user2 = new User();
user2.setUsername("2222");
user2.setPassword("1241");
user2.addSite(site1);
restTemplate.postForEntity(getRootUrl()+ "/users", user1, User.class);
restTemplate.postForEntity(getRootUrl()+ "/users", user2, User.class);
User calledUser1 = restTemplate.getForObject(getRootUrl()+"/users/"+user1.getUsername(), User.class);
System.out.println("Username: " + calledUser1.getUsername() + ", Password: " + calledUser1.getPassword());
for (Site site : calledUser1.getSites()) {
System.out.println("Sign up site: " + site.getSiteURL());
}
User calledUser2 = restTemplate.getForObject(getRootUrl()+"/users/"+user2.getUsername(), User.class);
System.out.println("Username: " + calledUser2.getUsername() + ", Password: " + calledUser2.getPassword());
for (Site site : calledUser2.getSites()) {
System.out.println("Sign up site: " + site.getSiteURL());
}
}
As a result of this code, The siteURL and user information are saved well. But, when i load user information from database, there is no information of sites.
Can you help me?

Caused by: org.hibernate.MappingException: Could not determine type for: java.util.List, at table: users, for columns: [org.hibernate.mapping.Column(sites)]
at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:486) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:453) ~[hibernate-core-5.3.9.Final.jar:5.3.9.Final]
It is about access strategy configuration. (i.e field based or property based accessed). Which one to use depends on the placement of the #Id from docs :
By default, the placement of the #Id annotation gives the default
access strategy. When placed on a field, Hibernate will assume
field-based access. When placed on the identifier getter, Hibernate
will use property-based access.
In User, as its #Id is placed on the getter, property based access will be used and Hibernate will check if all getters are properly configured. (If it is field based access , it will check for the fields instead) Properly configured here means the getter is required to meet any of the conditions:
Annotated with some mapping annotations such as #Column, #OneToMany etc.
If the type is the basic type or an #Entity , a default setting will be applied even no mapping annotation are marked.
Annotated with #Transient if you don't want to map it.
But getSites() in User does not satisfy any of the above conditions and hence it complains. So move #OneToMany from the field to the getter:
private List<Site> sites = new ArrayList<Site>();
#OneToMany(mappedBy = "user", cascade = CascadeType.ALL)
public List<Site> getSites() {
return sites;
}
If you want to use field based access only for the site but keep to use property based access for others, I believe you can use #Access( AccessType.FIELD ) to override for the site field :
#Access(AccessType.FIELD)
#OneToMany(mappedBy = "user", cascade = CascadeType.ALL)
private List<Site> sites = new ArrayList<Site>();
#Transient
public List<Site> getSites() {
return sites;
}

Remove the #JoinColumn(name="username") from the private List<Site> sites = new ArrayList<Site>();
In Bidirectional #OneToMany #ManyToOne relationship, only one entity can be the owner.
check this post for more.

Put the applicationContext.xml file in the src/main/resources directory. It will be copied in the classpath directory and you should be able to access it with
#ContextConfiguration("/applicationContext.xml")
From the Spring-Documentation: A plain path, for example "context.xml", will be treated as a classpath resource from the same package in which the test class is defined. A path starting with a slash is treated as a fully qualified classpath location, for example "/org/example/config.xml".
So it's important that you add the slash when referencing the file in the root directory of the classpath

Wix embedded mysql with spring boot DDL query error for an entity with embedded id

Solved it was a configuration mistake
I want to test a test method of my spring boot application in mysql.
So I added wix-embedded-mysql and configured embedded database but when I run the test It cannot create a table from one of my Entity objects with the following error:
create table user_tickets (date_time datetime(6) not null, ticket_id BIGINT UNSIGNED not null, user_id INT not null, created_date date, created_time time, modified_date date, modified_time time, version bigint, body varchar(1000), type varchar(255), created_by_id INT, modified_by_id INT, primary key (date_time, ticket_id, user_id)) engine=InnoDB
Hibernate: create table user_tickets (date_time datetime(6) not null, ticket_id BIGINT UNSIGNED not null, user_id INT not null, created_date date, created_time time, modified_date date, modified_time time, version bigint, body varchar(1000), type varchar(255), created_by_id INT, modified_by_id INT, primary key (date_time, ticket_id, user_id)) engine=InnoDB
2019-04-20 03:22:37.080 WARN 2186 --- [ main] o.h.t.s.i.ExceptionHandlerLoggedImpl : GenerationTarget encountered exception accepting command : Error executing DDL via JDBC Statement
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL via JDBC Statement
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:440) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:424) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:315) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:166) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:135) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:121) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:155) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:312) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:462) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:892) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:57) ~[spring-orm-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:390) ~[spring-orm-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:377) ~[spring-orm-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1758) ~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1695) ~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:573) ~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1089) ~[spring-context-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:859) ~[spring-context-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:780) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:333) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE]
at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:139) ~[spring-boot-test-2.0.5.RELEASE.jar:2.0.5.RELEASE]
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:117) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:108) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:190) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:132) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:246) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:227) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) ~[junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:246) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) ~[junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) ~[junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) ~[junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) ~[junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) ~[junit-4.12.jar:4.12]
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) ~[junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) ~[junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190) ~[spring-test-5.0.9.RELEASE.jar:5.0.9.RELEASE]
at org.junit.runner.JUnitCore.run(JUnitCore.java:137) ~[junit-4.12.jar:4.12]
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) ~[junit-rt.jar:na]
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47) ~[junit-rt.jar:na]
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242) ~[junit-rt.jar:na]
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) ~[junit-rt.jar:na]
Caused by: org.h2.jdbc.JdbcSQLException: Syntax error in SQL statement "CREATE TABLE USER_TICKETS (DATE_TIME DATETIME([*]6) NOT NULL, TICKET_ID BIGINT UNSIGNED NOT NULL, USER_ID INT NOT NULL, CREATED_DATE DATE, CREATED_TIME TIME, MODIFIED_DATE DATE, MODIFIED_TIME TIME, VERSION BIGINT, BODY VARCHAR(1000), TYPE VARCHAR(255), CREATED_BY_ID INT, MODIFIED_BY_ID INT, PRIMARY KEY (DATE_TIME, TICKET_ID, USER_ID)) ENGINE=INNODB "; expected "FOR, UNSIGNED, INVISIBLE, VISIBLE, NOT, NULL, AS, DEFAULT, GENERATED, ON, NOT, NULL, AUTO_INCREMENT, BIGSERIAL, SERIAL, IDENTITY, NULL_TO_DEFAULT, SEQUENCE, SELECTIVITY, COMMENT, CONSTRAINT, PRIMARY, UNIQUE, NOT, NULL, CHECK, REFERENCES, ,, )"; SQL statement:
create table user_tickets (date_time datetime(6) not null, ticket_id BIGINT UNSIGNED not null, user_id INT not null, created_date date, created_time time, modified_date date, modified_time time, version bigint, body varchar(1000), type varchar(255), created_by_id INT, modified_by_id INT, primary key (date_time, ticket_id, user_id)) engine=InnoDB [42001-197]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:357) ~[h2-1.4.197.jar:1.4.197]
at org.h2.message.DbException.getSyntaxError(DbException.java:217) ~[h2-1.4.197.jar:1.4.197]
at org.h2.command.Parser.getSyntaxError(Parser.java:555) ~[h2-1.4.197.jar:1.4.197]
at org.h2.command.Parser.read(Parser.java:3518) ~[h2-1.4.197.jar:1.4.197]
at org.h2.command.Parser.readIfMore(Parser.java:950) ~[h2-1.4.197.jar:1.4.197]
at org.h2.command.Parser.parseCreateTable(Parser.java:6571) ~[h2-1.4.197.jar:1.4.197]
at org.h2.command.Parser.parseCreate(Parser.java:4615) ~[h2-1.4.197.jar:1.4.197]
at org.h2.command.Parser.parsePrepared(Parser.java:380) ~[h2-1.4.197.jar:1.4.197]
at org.h2.command.Parser.parse(Parser.java:335) ~[h2-1.4.197.jar:1.4.197]
at org.h2.command.Parser.parse(Parser.java:311) ~[h2-1.4.197.jar:1.4.197]
at org.h2.command.Parser.prepareCommand(Parser.java:278) ~[h2-1.4.197.jar:1.4.197]
at org.h2.engine.Session.prepareLocal(Session.java:611) ~[h2-1.4.197.jar:1.4.197]
at org.h2.engine.Session.prepareCommand(Session.java:549) ~[h2-1.4.197.jar:1.4.197]
at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1247) ~[h2-1.4.197.jar:1.4.197]
at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:217) ~[h2-1.4.197.jar:1.4.197]
at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:205) ~[h2-1.4.197.jar:1.4.197]
at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:95) ~[HikariCP-2.7.9.jar:na]
at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java) ~[HikariCP-2.7.9.jar:na]
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
... 58 common frames omitted
This is how I added dependency in POM:
<dependency>
<groupId>com.wix</groupId>
<artifactId>wix-embedded-mysql</artifactId>
<version>4.2.0</version>
<scope>test</scope>
</dependency>
And configured embedded database as follows:
MysqldConfig config = MysqldConfig.aMysqldConfig(v5_7_19)
.withPort(3397)
.withTimeZone(TimeZone.getTimeZone(ZoneId.of("UTC")))
.withUser("test", "test")
.build();
SchemaConfig schemaConfig = SchemaConfig.aSchemaConfig("test_database")
.build();
embeddedMysql = EmbeddedMysql.anEmbeddedMysql(config)
.addSchema(schemaConfig)
.start();
My entity has been defined as followings:
#Getter
#Setter
#NoArgsConstructor
#AllArgsConstructor
#Entity
#Table(name = "user_tickets")
public class UserTicket extends BaseModel implements BaseModelId<UserTicketId> {
#EmbeddedId
private UserTicketId id;
#NotEmpty(groups = Group.class, message = "{validation.notnull}")
#Column(length = 1000)
private String body;
#Enumerated(EnumType.STRING)
private UserTicketType type;
#ManyToOne(fetch = FetchType.LAZY, optional = false)
#MapsId("userId")
#JoinColumn(name = "user_id", columnDefinition = "INT", foreignKey =
#ForeignKey(foreignKeyDefinition = "FOREIGN KEY(user_id) REFERENCES users(id) ON DELETE CASCADE"))
private User user;
#Valid
#NotNull(groups = Group.class, message = "{validation.notnull}")
#ManyToOne(fetch = FetchType.LAZY, optional = false)
#MapsId("ticketId")
#JoinColumn(name = "ticket_id", columnDefinition = "BIGINT UNSIGNED", foreignKey =
#ForeignKey(foreignKeyDefinition = "FOREIGN KEY(ticket_id) REFERENCES tickets(id) ON DELETE CASCADE"))
private Ticket ticket;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "userTicket", orphanRemoval = true)
private Set<UserTicketAttachment> userTicketAttachments;
}
And finally the embedded id:
#Getter
#Setter
#ToString(of = {"userId", "ticketId", "dateTime"})
#EqualsAndHashCode(of = {"userId", "ticketId", "dateTime"})
#NoArgsConstructor
#AllArgsConstructor
#Embeddable
public class UserTicketId implements Serializable {
#Column(name = "user_id")
private Long userId;
#Column(name = "ticket_id")
private Long ticketId;
#Column(name = "date_time")
private LocalDateTime dateTime;
}
All the other entities even those with embedded ids are created successfully in the embedded database.
I even copied and pasted generated query for the table manually in the embedded database and it worked!
I also need to mention that the setup works ok for the real database.
Here is my application.properties datasource definition:
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3397/test_database?autoReconnect=true&verifyServerCertificate=false&useSSL=false&requireSSL=false
spring.datasource.username=test
spring.datasource.password=test
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL57Dialect
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=create-drop

It was a configuration mistake.
There were some specific tests that i wanted to test with an embedded MySQL.
But due to slow nature of mysql tests, I wanted other tests to be run under H2 in memory.
So I create a configuration bean as following:
#Configuration
#EnableJpaRepositories(basePackages = "com.package.repository",
repositoryFactoryBeanClass = EntityGraphJpaRepositoryFactoryBean.class)
#PropertySource("classpath:application-embeddedmysqldb.properties")
#EnableTransactionManagement
public class EmbeddedMysqlConfig {
}
But I forgot to add the datasource referring to the actual wix embedded db.
As the result the database was still H2, But with messed up configurations with mysql.
I added Datasource like the following:
#Bean
#ConfigurationProperties(prefix = "spring.datasource")
public DataSource dataSource() {
return DataSourceBuilder.create().build();
}
And it solved it.

How to delete entity with JOINs using JPA and Hibernate

I have following entities:
I want to delete WordSet by id and username of the user using JPA.
Here is entity declarations:
User
#Entity
#Data
#ToString(callSuper = true)
#EqualsAndHashCode(callSuper = true)
#AllArgsConstructor
#NoArgsConstructor
public class User extends AbstractModelClass {
private String name;
private String username;
private String password;
private String email;
#ManyToMany(fetch = FetchType.EAGER)
private Set<Role> roles;
}
UserDictionary
#Entity
#Data
#ToString(callSuper = true)
#EqualsAndHashCode(callSuper = true)
#AllArgsConstructor
#NoArgsConstructor
public class UserDictionary extends AbstractModelClass {
#OneToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL, mappedBy = "userDictionary")
private Set<WordSet> wordSets;
#OneToOne(cascade = CascadeType.ALL)
private User user;
#PrePersist
private void addDictionaryToWordSets() {
wordSets.forEach(wordSet -> wordSet.setUserDictionary(this));
}
}
WordSet
#Entity
#Data
#AllArgsConstructor
#NoArgsConstructor
#EqualsAndHashCode(callSuper = true, exclude = {"studiedWords", "userDictionary"})
#ToString(callSuper = true, exclude = {"studiedWords", "userDictionary"})
public class WordSet extends AbstractModelClass {
#NotBlank
private String name;
#NotBlank
private String description;
#ManyToMany(fetch = FetchType.EAGER, cascade = {CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REMOVE})
private List<StudiedWord> studiedWords;
#ManyToOne(fetch = FetchType.EAGER)
private UserDictionary userDictionary;
public WordSet(String name, String description, List<StudiedWord> studiedWords) {
this.name = name;
this.description = description;
this.studiedWords = studiedWords;
}
public WordSet(Long id, String name, String description, List<StudiedWord> studiedWords) {
super(id);
this.name = name;
this.description = description;
this.studiedWords = studiedWords;
}
#PreRemove
private void removeFromUserDictionary() {
userDictionary.getWordSets().removeIf(this::equals);
}
}
Here is part of my WordSetDao:
#Override
public Optional<WordSet> findByIdAndUsername(long id, String username) {
return findOrEmpty(() -> entityManager.createQuery(
"SELECT w FROM WordSet w " +
"WHERE w.userDictionary.user.username = :username AND w.id = :id", WordSet.class)
.setParameter("id", id)
.setParameter("username", username)
.getSingleResult());
}
#Override
public void deleteByIdAndUsername(long id, String username) {
entityManager.createQuery(
"DELETE FROM WordSet w WHERE w.userDictionary.user.username = :username AND w.id = :id")
.setParameter("id", id)
.setParameter("username", username)
.executeUpdate();
}
findByIdAndUsername works fine, but delete throws following exception:
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.dao.InvalidDataAccessResourceUsageException: could not prepare statement; SQL [/* delete FKs in join table */ delete from word_set_studied_words where (word_set_id) in (select id from word_set where username=? and id=?)]; nested exception is org.hibernate.exception.SQLGrammarException: could not prepare statement
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)
at org.springframework.web.servlet.FrameworkServlet.doDelete(FrameworkServlet.java:894)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:654)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:167)
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at io.github.solomkinmv.glossary.web.security.auth.JwtTokenAuthenticationProcessingFilter.successfulAuthentication(JwtTokenAuthenticationProcessingFilter.java:58)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:240)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:121)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134)
at org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:155)
at io.github.solomkinmv.glossary.web.controller.WordSetControllerTest.deleteWordSet(WordSetControllerTest.java:236)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at org.springframework.restdocs.JUnitRestDocumentation$1.evaluate(JUnitRestDocumentation.java:55)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)
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$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: org.springframework.dao.InvalidDataAccessResourceUsageException: could not prepare statement; SQL [/* delete FKs in join table */ delete from word_set_studied_words where (word_set_id) in (select id from word_set where username=? and id=?)]; nested exception is org.hibernate.exception.SQLGrammarException: could not prepare statement
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:261)
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:244)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:491)
at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:59)
at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:147)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:656)
at io.github.solomkinmv.glossary.persistence.dao.impl.WordSetJpaDao$$EnhancerBySpringCGLIB$$48825a47.deleteByIdAndUsername(<generated>)
at io.github.solomkinmv.glossary.service.domain.impl.WordSetServiceImpl.deleteByIdAndUsername(WordSetServiceImpl.java:128)
at io.github.solomkinmv.glossary.service.domain.impl.WordSetServiceImpl$$FastClassBySpringCGLIB$$c3da160a.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:721)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:656)
at io.github.solomkinmv.glossary.service.domain.impl.WordSetServiceImpl$$EnhancerBySpringCGLIB$$4b4a0f55.deleteByIdAndUsername(<generated>)
at io.github.solomkinmv.glossary.web.controller.WordSetController.deleteWordSet(WordSetController.java:79)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:220)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:134)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
... 70 more
Caused by: org.hibernate.exception.SQLGrammarException: could not prepare statement
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:106)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:182)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareStatement(StatementPreparerImpl.java:78)
at org.hibernate.hql.internal.ast.exec.BasicExecutor.doExecute(BasicExecutor.java:78)
at org.hibernate.hql.internal.ast.exec.DeleteExecutor.execute(DeleteExecutor.java:107)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.executeUpdate(QueryTranslatorImpl.java:429)
at org.hibernate.engine.query.spi.HQLQueryPlan.performExecuteUpdate(HQLQueryPlan.java:374)
at org.hibernate.internal.SessionImpl.executeUpdate(SessionImpl.java:1348)
at org.hibernate.internal.QueryImpl.executeUpdate(QueryImpl.java:102)
at org.hibernate.jpa.internal.QueryImpl.internalExecuteUpdate(QueryImpl.java:405)
at org.hibernate.jpa.spi.AbstractQueryImpl.executeUpdate(AbstractQueryImpl.java:61)
at io.github.solomkinmv.glossary.persistence.dao.impl.WordSetJpaDao.deleteByIdAndUsername(WordSetJpaDao.java:50)
at io.github.solomkinmv.glossary.persistence.dao.impl.WordSetJpaDao$$FastClassBySpringCGLIB$$3577673c.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:721)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
... 98 more
Caused by: org.h2.jdbc.JdbcSQLException: Column "USERNAME" not found; SQL statement:
/* delete FKs in join table */ delete from word_set_studied_words where (word_set_id) in (select id from word_set where username=? and id=?) [42122-193]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
at org.h2.message.DbException.get(DbException.java:179)
at org.h2.message.DbException.get(DbException.java:155)
at org.h2.expression.ExpressionColumn.optimize(ExpressionColumn.java:147)
at org.h2.expression.Comparison.optimize(Comparison.java:178)
at org.h2.expression.ConditionAndOr.optimize(ConditionAndOr.java:130)
at org.h2.command.dml.Select.prepare(Select.java:856)
at org.h2.engine.Session.optimizeQueryExpression(Session.java:233)
at org.h2.expression.ConditionInSelect.optimize(ConditionInSelect.java:117)
at org.h2.command.dml.Delete.prepare(Delete.java:131)
at org.h2.command.Parser.prepareCommand(Parser.java:259)
at org.h2.engine.Session.prepareLocal(Session.java:561)
at org.h2.engine.Session.prepareCommand(Session.java:502)
at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1203)
at org.h2.jdbc.JdbcPreparedStatement.<init>(JdbcPreparedStatement.java:73)
at org.h2.jdbc.JdbcConnection.prepareStatement(JdbcConnection.java:287)
at sun.reflect.GeneratedMethodAccessor93.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:126)
at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:108)
at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:81)
at com.sun.proxy.$Proxy87.prepareStatement(Unknown Source)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$1.doPrepare(StatementPreparerImpl.java:87)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:172)
... 113 more
Also, instead of
DELETE FROM WordSet w WHERE w.userDictionary.user.username = :username AND w.id = :id
I've tried following query:
DELETE FROM WordSet w
WHERE w IN
(SELECT ws FROM UserDictionary u
JOIN u.wordSets ws
WHERE u.user.username = :username AND ws.id = :id)
And it works on my H2 database, but fails on MySQL with following exception:
java.sql.SQLException: You can't specify target table 'word_set' for update in FROM clause
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:964) ~[mysql-connector-java-5.1.40.jar!/:5.1.40]
...
I've googled about subqueries and MySQL (one, two), but couldn't find out how to make such trick with JPA.
So, how to delete wordset? Is there something wrong with my entity mapping?
Here is my DB schema, it looks correct:

There are some many things that are wrong in this mapping:
Using EAGER fetching for every collection type is even more of an issue than your current problem. You are practically fetching the whole DB with any given query. Switching to FetchType.LAZY is better.
You said it works for H2, but that's not true:
Caused by: org.h2.jdbc.JdbcSQLException: Column "USERNAME" not found; SQL statement:
/* delete FKs in join table */ delete from word_set_studied_words where (word_set_id) in (select id from word_set where username=? and id=?) [42122-193]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
This type of query is not supported by MySQL:
DELETE FROM WordSet w
WHERE w IN
(SELECT ws FROM UserDictionary u
JOIN u.wordSets ws
WHERE u.user.username = :username AND ws.id = :id)
Joins are prohibited in bulk statements as explained in the Hibernate User Guide.
Now, depending on the number of entries you want to delete, a batch delete might be a better approach since you can prevent lost update anomaly.
You have a graph of interconnected entities here, so bulk delete might not help you anyway because you can't delete a parent record without deleting the child associations first.

Have you attempted a regular join in the delete? There is a similar question here:
Delete with Join in MySQL
...although not via JPA, but there is an accepted answer which shows and example of a join based delete, but it seems MySQL specific.
The trick is to specify the actual table in the delete clause itself, not just the from clause when you have other tables referenced via JOINs.
I'm not setup to test JPA against mysql at the moment. JQL might not be able to accommodate this, but you could probably do it with a native query.

java.sql.SQLException: You can't specify target table 'word_set' for
update in FROM clause
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:964) ~[mysql-connector-java-5.1.40.jar!/:5.1.40]
This exception is caused, because in MySQL you can not modify/delete the same table which you use in the SELECT part. Here documented this behaviour https://dev.mysql.com/doc/refman/5.6/en/update.html. The solutions 1) nesting the subquery deeper into a from clause or 2) join the table to itself

Hibernate OneToMany integrity constraint violation: foreign key no parent

I'm trying to write simple project for school, but I have a problem which can't solve. I searched stack for solution, but nothing really works. So the problem:
I have two entity classes created with Hibernate (my db is HSQLDB):
#Entity
#Table(name = "Zwierzak")
#NamedQueries({ #NamedQuery(name = "delZwierzak", query = "Delete from Zwierzak z where z.zwierzakId = :zid"),
#NamedQuery(name = "delAll", query = "Delete from Zwierzak"),
#NamedQuery(name = "getAll", query = "from Zwierzak"),
#NamedQuery(name = "getByGatunek", query = "Select z from Zwierzak z where z.gatunek = :g")})
public class Zwierzak {
//Some fields here ...
#OneToMany(fetch = FetchType.EAGER, mappedBy = "chorobaId", cascade = {javax.persistence.CascadeType.ALL}, orphanRemoval = true)
#Cascade({org.hibernate.annotations.CascadeType.ALL})
private Set<Choroba> choroby = new HashSet<Choroba>(0);
//Some methods here ...
And second class:
#Entity
#Table(name="Choroba")
public class Choroba {
//Some fields here ...
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name="zwierzakId")
#OnDelete(action = org.hibernate.annotations.OnDeleteAction.CASCADE)
Zwierzak zwierzak;
//Some methods here ...
Now I'm adding some Zwierzak entities to database, and try to add Choroba like that:
Session session = sessionFactory.getCurrentSession();
session.beginTransaction();
//Creating and saving Zwierzak (parent) first
Zwierzak z = new Zwierzak();
session.save(z);
//Creating choroba
Choroba ch = new Choroba();
//Setting parent in child class
ch.setZwierzak(z);
//Adding child in parent class
z.getChoroby().add(ch);
//Saving child
session.save(ch);
And I'm still getting exceptions. Here is stack trace from log:
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1.673 sec <<< FAILURE!
addZwierzakTest(pl.ug.edu.pl.services.ZwierzakServiceTest) Time elapsed: 0.249 sec <<< ERROR!
org.hibernate.exception.ConstraintViolationException: could not execute statement
at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:74)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:136)
at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:96)
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2975)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3487)
at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:81)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:377)
at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:214)
at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:194)
at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:178)
at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:321)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:286)
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:192)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:125)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:206)
at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:55)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:191)
at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:49)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90)
at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:764)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:756)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:752)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:352)
at com.sun.proxy.$Proxy17.save(Unknown Source)
at pl.ug.edu.pl.services.ZwierzakService.dodajChorobe(ZwierzakService.java:50)
at pl.ug.edu.pl.services.ZwierzakServiceTest.addZwierzakTest(ZwierzakServiceTest.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:69)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:48)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:292)
at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
Caused by: java.sql.SQLIntegrityConstraintViolationException: integrity constraint violation: foreign key no parent; FK_Q70JGX265MYFNVPD1K5M8ONUD table: CHOROBA
at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCPreparedStatement.fetchResult(Unknown Source)
at org.hsqldb.jdbc.JDBCPreparedStatement.executeUpdate(Unknown Source)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:133)
... 58 more
I have no idea what is wrong, tried many things which I found that supposed to solve this problem, but still it doesn't work, I don't know where I do something wrong. Will be grateful for little help, thanks in advance! :)
EDIT: Id's are generated by #Id annotation of course.

I think the problem is the save operation does not create the id until the commit time, so when you are trying to make the second save id is not present, consider flush before the second save.
Zwierzak z = new Zwierzak();
session.save(z);
!!!Consider a flush here !!!
session.flush();
//Creating choroba
Choroba ch = new Choroba();
//Setting parent in child class
ch.setZwierzak(z);
//Adding child in parent class
z.getChoroby().add(ch);
//Saving child
session.save(ch);
Also
#OneToMany(fetch = FetchType.EAGER, mappedBy = "chorobaId",
It should be
#OneToMany(fetch = FetchType.EAGER, mappedBy = "zwierzak",
Mapped by refer to the field of the type that will contain the #ManyToOne, not directly the id. It should fix the issue.

In my case the #OneToMany collection was updated, some items were removed, and new added. Even though orphanremoval=true was specified on the collection, hiberhate did not actually removed the entries from the database.
The exception was thrown at the attempt to delete the owning entity.
The fix was to explicitely delete the items from the DB during the update operation.

How to configure cascade in many-to-many association that string from middle table delete if I delete main entity

I use hibernate framework for mapping.
How to configure cascade in many-to-many association that string from middle table delete if I delete main entity?
For Example:
Student Professor. It is many to many association. in database 3 tables:
1.student
2.srudent_professor
3.professor
if I am
add student1 to database
add professor1 to database
add string in middle table which contains student1.id and professor1.id
Now if I try to delete student I get Exception.
I want that if I delete student - data from middle table delete BUT professor become in database.
real situation:
stacktrace:
org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; constraint [null]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement
at org.springframework.orm.hibernate4.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:138)
at org.springframework.orm.hibernate4.HibernateTransactionManager.convertHibernateAccessException(HibernateTransactionManager.java:680)
at org.springframework.orm.hibernate4.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:562)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:755)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:724)
at org.springframework.test.context.transaction.TransactionalTestExecutionListener$TransactionContext.endTransaction(TransactionalTestExecutionListener.java:591)
at org.springframework.test.context.transaction.TransactionalTestExecutionListener.endTransaction(TransactionalTestExecutionListener.java:297)
at org.springframework.test.context.transaction.TransactionalTestExecutionListener.afterTestMethod(TransactionalTestExecutionListener.java:192)
at org.springframework.test.context.TestContextManager.afterTestMethod(TestContextManager.java:395)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:91)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:88)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: org.hibernate.exception.ConstraintViolationException: could not execute statement
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:129)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:136)
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:58)
at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:3343)
at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:3546)
at org.hibernate.action.internal.EntityDeleteAction.execute(EntityDeleteAction.java:100)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:364)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:356)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:282)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:328)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1234)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:404)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)
at org.springframework.orm.hibernate4.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:554)
... 26 more
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: Конфликт инструкции DELETE с ограничением REFERENCE "FK_2c3f9e82fddd432089a2280210a". Конфликт произошел в базе данных "hhsystemTest", таблица "dbo.vacancy_candidate", column 'candidate_id'.
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(SQLServerException.java:216)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.getNextResult(SQLServerStatement.java:1515)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.doExecutePreparedStatement(SQLServerPreparedStatement.java:404)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement$PrepStmtExecCmd.doExecute(SQLServerPreparedStatement.java:350)
at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:5696)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:1715)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(SQLServerStatement.java:180)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeStatement(SQLServerStatement.java:155)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.executeUpdate(SQLServerPreparedStatement.java:314)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:133)
... 40 more
INFO GenericApplicationContext - Closing org.springframework.context.support.GenericApplicationContext#d3c9557: startup date [Wed Sep 25 18:02:45 MSK 2013]; root of context hierarchy
INFO DefaultListableBeanFactory - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory#449c87c1: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,candidateDao,eventDaoImpl,eventStatusDao,eventTypeDao,noteDao,skillDao,userDao,vacancyDao,candidateService,eventService,utilService,vacancyService,org.springframework.aop.config.internalAutoProxyCreator,org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0,org.springframework.transaction.interceptor.TransactionInterceptor#0,org.springframework.transaction.config.internalTransactionAdvisor,transactionManager,dataSource,sessionFactory,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor]; root of factory hierarchy
real mapping:
#Entity
#Table(name = "candidate")
#XmlRootElement(name = "candidate")
public class Candidate extends Person {
...
#ManyToMany(mappedBy = "candidates", fetch = FetchType.EAGER)
#XmlTransient
public Set<Vacancy> getVacancies() {
return vacancies;
}
...
}
vacancy mapping:
#Entity
#Table(name = "vacancy")
#XmlRootElement(name="vacancy")
public class Vacancy {
....
#JoinTable(name = "vacancy_candidate", joinColumns = #JoinColumn(name = "vacancy_id"), inverseJoinColumns = #JoinColumn(name = "candidate_id"))
public Set<Candidate> getCandidates() {
return candidates;
}
...
}
It happened when I invioke
candidateService.delete(candidateFromDb);
public void delete(Candidate candidate) {
candidateDao.remove(candidate);
}
#Override
public boolean remove(Candidate candidate) throws HibernateException {
Session session = sessionFactory.getCurrentSession();
if (candidate == null) {
return false;
}
session.delete(candidate);
return true;
}
CandidateService marked as transactinoal