Spring UnsatisfiedDependencyException - spring-boot

Question

My project structure:
And these are my classes.
#Configuration
public class StudentConfig {
#Bean
CommandLineRunner commandLineRunner(StudentRepository studentRepository){
return args -> {
Student berkay=new Student(
"Berkay",
"berkay-acrr#hotmail.com",
LocalDate.of(2000, SEPTEMBER,22)
);
Student ali =new Student(
"Ali",
"Ali-acrr#hotmail.com",
LocalDate.of(1988, APRIL,26)
);
studentRepository.saveAll(List.of(berkay,ali));
};
}
}
#Entity
#Table
public class Student {
#Id
#SequenceGenerator(
name = "student_sequence",
sequenceName = "student_sequence",
allocationSize = 1
)
#GeneratedValue(
strategy = GenerationType.SEQUENCE,
generator = "student_sequence"
)
private Long id;
private String name;
private String email;
private LocalDate dob;
#Transient
private Integer age;
public Student() {
}
public Student(Long id,
String name,
String email,
LocalDate dob) {
this.id = id;
this.name = name;
this.email = email;
this.dob = dob;
}
public Student(String name,
String email,
LocalDate dob) {
this.name = name;
this.email = email;
this.dob = dob;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public LocalDate getDob() {
return dob;
}
public void setDob(LocalDate dob) {
this.dob = dob;
}
public Integer getAge() {
return Period.between(this.dob,LocalDate.now()).getYears();
}
public void setAge(Integer age) {
this.age = age;
}
#Override
public String toString() {
return "Student{" +
"id=" + id +
", name='" + name + '\'' +
", email='" + email + '\'' +
", dob=" + dob +
", age=" + age +
'}';
}
}
#RestController
#RequestMapping("api/v1/student")
public class StudentController {
private final StudentService studentService;
#Autowired
public StudentController(StudentService studentService) {
this.studentService = studentService;
}
#GetMapping
public List<Student> getStudents(){
return studentService.getStudents();
}
#PostMapping
public void registerNewStudent(#RequestBody Student student){
studentService.addNewStudent(student);
}
}
#Service
public class StudentService {
private final StudentRepository studentRepository;
#Autowired
public StudentService(StudentRepository studentRepository) {
this.studentRepository = studentRepository;
}
public List<Student> getStudents(){
return studentRepository.findAll();
}
public void addNewStudent(Student student) {
Optional<Student> studentOptional = studentRepository.findStudentByEmail(student.getEmail());
if(studentOptional.isPresent()){
throw new IllegalStateException("email taken");
}
studentRepository.save(student);
}
}
#Repository
public interface StudentRepository extends JpaRepository<Student,Long> {
#Query("SELECT s FROM Student s WHERE s.EMAIL=?1")
Optional<Student> findStudentByEmail(String email);
}
These are my classes. They are so basic classes. I don't understand my mistake here. Why can't I create an object?
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-08-23 14:26:41.387 ERROR 10544 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'studentController' defined in file [C:\Spring\demo\target\classes\com\example\demo\student\StudentController.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'studentService' defined in file [C:\Spring\demo\target\classes\com\example\demo\student\StudentService.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'studentRepository' defined in com.example.demo.student.StudentRepository defined in #EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Invocation of init method failed; nested exception is org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String); Reason: Validation failed for query for method public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String)!; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String)!
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:229) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1372) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1222) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:955) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) ~[spring-context-5.3.22.jar:5.3.22]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.22.jar:5.3.22]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.3.jar:2.7.3]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:734) ~[spring-boot-2.7.3.jar:2.7.3]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.3.jar:2.7.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) ~[spring-boot-2.7.3.jar:2.7.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306) ~[spring-boot-2.7.3.jar:2.7.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1295) ~[spring-boot-2.7.3.jar:2.7.3]
at com.example.demo.DemoApplication.main(DemoApplication.java:10) ~[classes/:na]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'studentService' defined in file [C:\Spring\demo\target\classes\com\example\demo\student\StudentService.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'studentRepository' defined in com.example.demo.student.StudentRepository defined in #EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Invocation of init method failed; nested exception is org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String); Reason: Validation failed for query for method public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String)!; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String)!
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:229) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1372) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1222) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1391) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1311) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791) ~[spring-beans-5.3.22.jar:5.3.22]
... 19 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'studentRepository' defined in com.example.demo.student.StudentRepository defined in #EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Invocation of init method failed; nested exception is org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String); Reason: Validation failed for query for method public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String)!; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String)!
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1391) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1311) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791) ~[spring-beans-5.3.22.jar:5.3.22]
... 33 common frames omitted
Caused by: org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String); Reason: Validation failed for query for method public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String)!; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String)!
at org.springframework.data.repository.query.QueryCreationException.create(QueryCreationException.java:101) ~[spring-data-commons-2.7.2.jar:2.7.2]
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lookupQuery(QueryExecutorMethodInterceptor.java:107) ~[spring-data-commons-2.7.2.jar:2.7.2]
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(QueryExecutorMethodInterceptor.java:95) ~[spring-data-commons-2.7.2.jar:2.7.2]
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na]
at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133) ~[na:na]
at java.base/java.util.Collections$UnmodifiableCollection$1.forEachRemaining(Collections.java:1061) ~[na:na]
at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1845) ~[na:na]
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[na:na]
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[na:na]
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) ~[na:na]
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na]
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[na:na]
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.mapMethodsToQuery(QueryExecutorMethodInterceptor.java:97) ~[spring-data-commons-2.7.2.jar:2.7.2]
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lambda$new$0(QueryExecutorMethodInterceptor.java:87) ~[spring-data-commons-2.7.2.jar:2.7.2]
at java.base/java.util.Optional.map(Optional.java:260) ~[na:na]
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.<init>(QueryExecutorMethodInterceptor.java:87) ~[spring-data-commons-2.7.2.jar:2.7.2]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:365) ~[spring-data-commons-2.7.2.jar:2.7.2]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:323) ~[spring-data-commons-2.7.2.jar:2.7.2]
at org.springframework.data.util.Lazy.getNullable(Lazy.java:231) ~[spring-data-commons-2.7.2.jar:2.7.2]
at org.springframework.data.util.Lazy.get(Lazy.java:115) ~[spring-data-commons-2.7.2.jar:2.7.2]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:329) ~[spring-data-commons-2.7.2.jar:2.7.2]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:144) ~[spring-data-jpa-2.7.2.jar:2.7.2]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.22.jar:5.3.22]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.22.jar:5.3.22]
... 44 common frames omitted
Caused by: java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.Optional com.example.demo.student.StudentRepository.findStudentByEmail(java.lang.String)!
at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:96) ~[spring-data-jpa-2.7.2.jar:2.7.2]
at org.springframework.data.jpa.repository.query.SimpleJpaQuery.<init>(SimpleJpaQuery.java:66) ~[spring-data-jpa-2.7.2.jar:2.7.2]
at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromMethodWithQueryString(JpaQueryFactory.java:51) ~[spring-data-jpa-2.7.2.jar:2.7.2]
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$DeclaredQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:169) ~[spring-data-jpa-2.7.2.jar:2.7.2]
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:253) ~[spring-data-jpa-2.7.2.jar:2.7.2]
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:93) ~[spring-data-jpa-2.7.2.jar:2.7.2]
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lookupQuery(QueryExecutorMethodInterceptor.java:103) ~[spring-data-commons-2.7.2.jar:2.7.2]
... 66 common frames omitted
Caused by: java.lang.IllegalArgumentException: org.hibernate.QueryException: could not resolve property: EMAIL of: com.example.demo.student.Student [SELECT s FROM com.example.demo.student.Student s WHERE s.EMAIL=?1]
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:138) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:757) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:114) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:362) ~[spring-orm-5.3.22.jar:5.3.22]
at jdk.proxy2/jdk.proxy2.$Proxy96.createQuery(Unknown Source) ~[na:na]
at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:90) ~[spring-data-jpa-2.7.2.jar:2.7.2]
... 72 common frames omitted
Caused by: org.hibernate.QueryException: could not resolve property: EMAIL of: com.example.demo.student.Student [SELECT s FROM com.example.demo.student.Student s WHERE s.EMAIL=?1]
at org.hibernate.QueryException.generateQueryException(QueryException.java:120) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.QueryException.wrapWithQueryString(QueryException.java:103) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:220) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:144) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:113) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:73) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:162) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:636) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:748) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
... 80 common frames omitted
Caused by: org.hibernate.QueryException: could not resolve property: EMAIL of: com.example.demo.student.Student
at org.hibernate.persister.entity.AbstractPropertyMapping.propertyException(AbstractPropertyMapping.java:78) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.persister.entity.AbstractPropertyMapping.toType(AbstractPropertyMapping.java:72) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.toType(AbstractEntityPersister.java:2053) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.ast.tree.FromElementType.getPropertyType(FromElementType.java:412) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.ast.tree.FromElement.getPropertyType(FromElement.java:524) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.ast.tree.DotNode.getDataType(DotNode.java:723) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.ast.tree.DotNode.prepareLhs(DotNode.java:268) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.ast.tree.DotNode.resolve(DotNode.java:208) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.ast.HqlSqlWalker.resolve(HqlSqlWalker.java:1066) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.expr(HqlSqlBaseWalker.java:1319) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.exprOrSubquery(HqlSqlBaseWalker.java:4797) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.comparisonExpr(HqlSqlBaseWalker.java:4261) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.logicalExpr(HqlSqlBaseWalker.java:2180) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.whereClause(HqlSqlBaseWalker.java:841) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:635) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:339) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:287) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:276) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:192) ~[hibernate-core-5.6.10.Final.jar:5.6.10.Final]
... 86 common frames omitted
Process finished with exit code 1

Answer 1

Your query is wrong
#Repository
public interface StudentRepository extends JpaRepository<Student,Long> {
#Query("SELECT s FROM Student s WHERE s.email=?1")
Optional<Student> findStudentByEmail(String email);
}