Develop Reference

Hibernate: How to delete a batch of object from subclass table when inheritanceType.joined is set?

I have two classes. One is Question, one is TempQuestion:
#Entity
#Table(name="tbQuestion")
#DiscriminatorColumn(
name="discriminator",
discriminatorType=DiscriminatorType.STRING)
#Inheritance(strategy=InheritanceType.JOINED)
public abstract class Question {
private Integer qstId;
private String qstNum;
private Integer versionNum;
private String qstTitle;
private String qstInstruction;
private InterviewQstType qstType;
private boolean isChildQuestion;
private AnswerDataType answerDataType;
private String chartNodeLocation;
private Question parentQst;
private Set<Question> childQsts;
private Set<QstOption> options;
private Set<Answer> answers;
private List<QstOption> jumpTrgs;
.....
}
#Entity
#Table(name="tb_temp_question")
#DiscriminatorValue("temporary")
#PrimaryKeyJoinColumn(name="qstId")
#OnDelete(action = OnDeleteAction.CASCADE)
public class TempQuestion extends Question{
}
There is no any field only in TempQuestion (Just for testing purpose).
When I insert several records of data into these two tables, it works fine.
But When I try to delete all of them with the coding below, it gives me an error.
#Autowired
private SessionFactory sessionFactory;
public void deleteAll{
Session session = sessionFactory.openSession();
String stringQuery = "DELETE FROM TempQuestion";
Query query = session.createQuery(stringQuery);
query.executeUpdate();
}
The log is as following:
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.hibernate.exception.SQLGrammarException: could not execute statement
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:978)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
javax.servlet.http.HttpServlet.service(HttpServlet.java:618)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
org.hibernate.exception.SQLGrammarException: could not execute statement
org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:123)
org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126)
org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:112)
org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:211)
org.hibernate.hql.spi.TableBasedDeleteHandlerImpl.execute(TableBasedDeleteHandlerImpl.java:144)
org.hibernate.hql.internal.ast.exec.MultiTableDeleteExecutor.execute(MultiTableDeleteExecutor.java:61)
org.hibernate.hql.internal.ast.QueryTranslatorImpl.executeUpdate(QueryTranslatorImpl.java:445)
org.hibernate.engine.query.spi.HQLQueryPlan.performExecuteUpdate(HQLQueryPlan.java:379)
org.hibernate.internal.SessionImpl.executeUpdate(SessionImpl.java:1286)
org.hibernate.internal.QueryImpl.executeUpdate(QueryImpl.java:118)
com.tong.tool.dao.impl.TempQuestionDaoImpl.deleteAll(TempQuestionDaoImpl.java:78)
com.tong.tool.dao.impl.TempQuestionDaoImpl$$FastClassBySpringCGLIB$$80be7d2f.invoke(<generated>)
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:717)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653)
com.tong.tool.dao.impl.TempQuestionDaoImpl$$EnhancerBySpringCGLIB$$90817b69.deleteAll(<generated>)
com.tong.tool.service.EditorService.deleteQuestions(EditorService.java:252)
com.tong.tool.controller.QstEditorController.deleteQuestions(QstEditorController.java:141)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:777)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:706)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
javax.servlet.http.HttpServlet.service(HttpServlet.java:618)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
org.postgresql.util.PSQLException: ERROR: relation "ht_tb_temp_question" does not exist
Position: 13
org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2198)
org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1927)
org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255)
org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:561)
org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:419)
org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:365)
org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:208)
org.hibernate.hql.spi.TableBasedDeleteHandlerImpl.execute(TableBasedDeleteHandlerImpl.java:144)
org.hibernate.hql.internal.ast.exec.MultiTableDeleteExecutor.execute(MultiTableDeleteExecutor.java:61)
org.hibernate.hql.internal.ast.QueryTranslatorImpl.executeUpdate(QueryTranslatorImpl.java:445)
org.hibernate.engine.query.spi.HQLQueryPlan.performExecuteUpdate(HQLQueryPlan.java:379)
org.hibernate.internal.SessionImpl.executeUpdate(SessionImpl.java:1286)
org.hibernate.internal.QueryImpl.executeUpdate(QueryImpl.java:118)
com.tong.tool.dao.impl.TempQuestionDaoImpl.deleteAll(TempQuestionDaoImpl.java:78)
com.tong.tool.dao.impl.TempQuestionDaoImpl$$FastClassBySpringCGLIB$$80be7d2f.invoke(<generated>)
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:717)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653)
com.tong.tool.dao.impl.TempQuestionDaoImpl$$EnhancerBySpringCGLIB$$90817b69.deleteAll(<generated>)
com.tong.tool.service.EditorService.deleteQuestions(EditorService.java:252)
com.tong.tool.controller.QstEditorController.deleteQuestions(QstEditorController.java:141)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:777)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:706)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
javax.servlet.http.HttpServlet.service(HttpServlet.java:618)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
I have searched for a long time, but I cannot find a correct answer for this. It seems not many people had this problem. Please help. Thanks.

Spring data rest one to many cascade all

I have two JPA entities User and Authority, User the parent and Authority is the child. There is one to many relationship between User and Authority.
User -
#Data
#Entity
#Table(name = "users", uniqueConstraints={ #UniqueConstraint(columnNames={"username"})})
public class User {
#Id
#CustomEmailValidator
#Size.List ({
#Size(min=5, message="The field must be at least {min} characters"),
#Size(max=100, message="The field must be less than {max} characters")
})
private String username;
#Basic
#Column(name = "enabled", columnDefinition = "BIT", length = 1)
private boolean enabled;
#OneToMany(cascade = {CascadeType.ALL,CascadeType.PERSIST,CascadeType.MERGE}, mappedBy = "user")
#Column(nullable = false)
private List<Authority> authorities = new ArrayList<>();
}
Authority -
#Data
#Entity
#Table(name ="authorities")
public class Authority {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
#Version
private Integer version;
#NotNull
#Size.List ({
#Size(min=5, message="The field must be at least {min} characters"),
#Size(max=100, message="The field must be less than {max} characters")
})
private String authority;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name = "username", nullable=false)
private User user;
}
I have exposed User as a Spring Data Rest repository. When I do
http://localhost/api/users
I am able to see uses to list along with Authorities. However when I try to create a user along with authorities using the following json -
{
"username": "cmsdeveloper222#amnesty.org.in",
"enabled": true,
"authorities": [
{
"authority": "ROLE_ADMIN"
}
]
}
I get the following error -
{
"cause": {
"cause": {
"cause": null,
"message": "Column 'username' cannot be null"
},
"message": "could not execute statement"
},
"message": "could not execute statement; SQL [n/a]; constraint [null]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement"
}
The underlying exception is -
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'username' cannot be null
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_40]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_40]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_40]
at java.lang.reflect.Constructor.newInstance(Constructor.java:422) ~[na:1.8.0_40]
at com.mysql.jdbc.Util.handleNewInstance(Util.java:377) ~[mysql-connector-java-5.1.34.jar:5.1.34]
at com.mysql.jdbc.Util.getInstance(Util.java:360) ~[mysql-connector-java-5.1.34.jar:5.1.34]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:971) ~[mysql-connector-java-5.1.34.jar:5.1.34]
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3887) ~[mysql-connector-java-5.1.34.jar:5.1.34]
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3823) ~[mysql-connector-java-5.1.34.jar:5.1.34]
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2435) ~[mysql-connector-java-5.1.34.jar:5.1.34]
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2582) ~[mysql-connector-java-5.1.34.jar:5.1.34]
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2530) ~[mysql-connector-java-5.1.34.jar:5.1.34]
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1907) ~[mysql-connector-java-5.1.34.jar:5.1.34]
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2141) ~[mysql-connector-java-5.1.34.jar:5.1.34]
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2077) ~[mysql-connector-java-5.1.34.jar:5.1.34]
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2062) ~[mysql-connector-java-5.1.34.jar:5.1.34]
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:208) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
... 151 common frames omitted
Hibernate: select count(campaign0_.id) as col_0_0_ from Campaign campaign0_
Hibernate: select campaign0_.id as id1_0_, campaign0_.campaignId as campaign2_0_, campaign0_.emailOfTheCreator as emailOfT3_0_, campaign0_.endDate as endDate4_0_, campaign0_.name as name5_0_, campaign0_.startDate as startDat6_0_, campaign0_.status as status7_0_, campaign0_.summary as summary8_0_, campaign0_.version as version9_0_ from Campaign campaign0_ limit ?
Hibernate: select user0_.username as username1_3_1_, user0_.enabled as enabled2_3_1_, authoritie1_.username as username4_3_3_, authoritie1_.id as id1_2_3_, authoritie1_.id as id1_2_0_, authoritie1_.authority as authorit2_2_0_, authoritie1_.username as username4_2_0_, authoritie1_.version as version3_2_0_ from users user0_ left outer join authorities authoritie1_ on user0_.username=authoritie1_.username where user0_.username=?
Hibernate: insert into users (enabled, username) values (?, ?)
Hibernate: insert into authorities (authority, username, version) values (?, ?, ?)
16:48:14.260 [http-nio-8080-exec-1] WARN o.h.e.jdbc.spi.SqlExceptionHelper - SQL Error: 1048, SQLState: 23000
16:48:14.267 [http-nio-8080-exec-1] ERROR o.h.e.jdbc.spi.SqlExceptionHelper - Column 'username' cannot be null
16:48:14.271 [http-nio-8080-exec-1] WARN o.h.e.jdbc.spi.SqlExceptionHelper - SQL Warning Code: 1048, SQLState: 23000
16:48:14.271 [http-nio-8080-exec-1] WARN o.h.e.jdbc.spi.SqlExceptionHelper - Column 'username' cannot be null
16:48:14.308 [http-nio-8080-exec-1] ERROR o.s.d.r.w.AbstractRepositoryRestController - could not execute statement; SQL [n/a]; constraint [null]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement
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.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:248) ~[spring-orm-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:214) ~[spring-orm-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:417) ~[spring-orm-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:59) ~[spring-tx-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213) ~[spring-tx-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:147) ~[spring-tx-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodIntercceptor.invoke(CrudMethodMetadataPostProcessor.java:122) ~[spring-data-jpa-1.7.2.RELEASE.jar:na]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) ~[spring-aop-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at com.sun.proxy.$Proxy98.save(Unknown Source) ~[na:na]
at org.springframework.data.rest.core.invoke.CrudRepositoryInvoker.invokeSave(CrudRepositoryInvoker.java:106) ~[spring-data-rest-core-2.2.2.RELEASE.jar:na]
at org.springframework.data.rest.webmvc.RepositoryEntityController.createAndReturn(RepositoryEntityController.java:414) ~[spring-data-rest-webmvc-2.2.2.RELEASE.jar:na]
at org.springframework.data.rest.webmvc.RepositoryEntityController.postCollectionResource(RepositoryEntityController.java:232) ~[spring-data-rest-webmvc-2.2.2.RELEASE.jar:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_40]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_40]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_40]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_40]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221) ~[spring-web-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137) ~[spring-web-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110) ~[spring-webmvc-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:777) ~[spring-webmvc-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:706) ~[spring-webmvc-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943) ~[spring-webmvc-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877) ~[spring-webmvc-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966) [spring-webmvc-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868) [spring-webmvc-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:644) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842) [spring-webmvc-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat-embed-websocket-8.0.20.jar:8.0.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) [spring-web-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.oauth2.provider.authentication.OAuth2AuthenticationProcessingFilter.doFilter(OAuth2AuthenticationProcessingFilter.java:140) [spring-security-oauth2-2.0.2.RELEASE.jar:na]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:57) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) [spring-security-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) [spring-web-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:516) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1086) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:659) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:223) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1558) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1515) [tomcat-embed-core-8.0.20.jar:8.0.20]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_40]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_40]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.0.20.jar:8.0.20]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40]
Caused by: org.hibernate.exception.ConstraintViolationException: could not execute statement
at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:72) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:112) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:211) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:96) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3032) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3558) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:98) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:492) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:197) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:181) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:216) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:324) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:288) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:194) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:125) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.jpa.event.internal.core.JpaMergeEventListener.saveWithGeneratedId(JpaMergeEventListener.java:73) ~[hibernate-entitymanager-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.event.internal.DefaultMergeEventListener.saveTransientEntity(DefaultMergeEventListener.java:271) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.event.internal.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:251) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:189) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.internal.SessionImpl.fireMerge(SessionImpl.java:886) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:868) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.spi.CascadingActions$6.cascade(CascadingActions.java:277) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:350) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:293) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:161) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.internal.Cascade.cascadeCollectionElements(Cascade.java:379) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.internal.Cascade.cascadeCollection(Cascade.java:319) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:296) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:161) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:118) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:460) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.event.internal.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:255) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.event.internal.DefaultMergeEventListener.entityIsDetached(DefaultMergeEventListener.java:317) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:186) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:85) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.internal.SessionImpl.fireMerge(SessionImpl.java:876) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:858) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:863) ~[hibernate-core-4.3.8.Final.jar:4.3.8.Final]
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:1196) ~[hibernate-entitymanager-4.3.8.Final.jar:4.3.8.Final]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_40]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_40]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_40]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_40]
at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:344) ~[spring-orm-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at com.sun.proxy.$Proxy93.merge(Unknown Source) ~[na:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_40]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_40]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_40]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_40]
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:291) ~[spring-orm-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at com.sun.proxy.$Proxy93.merge(Unknown Source) ~[na:na]
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.save(SimpleJpaRepository.java:410) ~[spring-data-jpa-1.7.2.RELEASE.jar:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_40]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_40]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_40]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_40]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:416) ~[spring-data-commons-1.9.2.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:401) ~[spring-data-commons-1.9.2.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:373) ~[spring-data-commons-1.9.2.RELEASE.jar:na]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$DefaultMethodInvokingMethodInterceptor.invoke(RepositoryFactorySupport.java:486) ~[spring-data-commons-1.9.2.RELEASE.jar:na]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.1.5.RELEASE.jar:4.1.5.RELEASE]
Please help. What I am doing wrong? Why hibernate complains the username is null when I have mapping? Is it possible that my json is not converted properly?
Thanks,
Vijay

Finally I found the solution. It is an issue with Jackson json unmarshalling. What is missing is a way to tell the object mapper about the one to many relationship, only then it will create parent and child objects properly upon which hibernate handles the rest of the stuff. Luckily Jackson has two annotations #JsonManagedReference, #JsonBackReference to tell the object mapper about the relationship. Updated code -
User.java
#Data
#Entity
#Table(name = "users", uniqueConstraints={ #UniqueConstraint(columnNames={"username"})})
public class User {
#Id
#CustomEmailValidator
#Size.List ({
#Size(min=5, message="The field must be at least {min} characters"),
#Size(max=100, message="The field must be less than {max} characters")
})
private String username;
#Basic
#Column(name = "enabled", columnDefinition = "BIT", length = 1)
private boolean enabled;
#JsonManagedReference
#OneToMany(cascade = {CascadeType.ALL,CascadeType.PERSIST,CascadeType.MERGE}, mappedBy = "user")
#Column(nullable = false)
private List<Authority> authorities = new ArrayList<>();
}
Authority.java
#Data
#Entity
#Table(name ="authorities")
public class Authority {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
#Version
private Integer version;
#NotNull
#Size.List ({
#Size(min=5, message="The field must be at least {min} characters"),
#Size(max=100, message="The field must be less than {max} characters")
})
private String authority;
#JsonBackReference
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name = "username", nullable=false)
private User user;
}
One more point if we use Set<> instead of List<> to hold the child objects, we should alter the equals and hash code methods properly as mentioned here -
Jackson bug (or feature!?) when using java.util.Set - mySet.size() is always 1

My guess would be that username is never set at all, due to the json unmarshalling or the #CustomEmailValidator failing. If username seems to be set, then it could be that hibernate is trying to persist the user earlier than you expect, before the marhalling or validation has called the username setter.
Try to print the username to the log in setUsername to check if it is set before you get the exception. I would also consider using a #GeneratedValue id in User, like you do in Authority, instead of the #Id on username. That will allow you to check if username can be saved if you remove all constaints, you can always add a unique constraint on the username after debugging..

More than one row with the given identifier was found: 1, for class: com.model.Diagnosis

Below is the model, service implementation and the error trace of my code.
Model class:
#Entity
#Table(name = "ph_diagnosis_history")
#JsonIdentityInfo(generator = ObjectIdGenerators.PropertyGenerator.class, property = "id",scope=Diagnosis.class)
public class Diagnosis extends AbstractEntity {
#Column(name = "diagnosis_notes", length=255)
#Length(max = 255, message = IprProp.MAX_LEN_255_MSG)
private String diagnosisNote;
#Enumerated(EnumType.STRING)
private DiagnosisTypeEnum type;
#Temporal(TemporalType.DATE)
#Column(name = "diagnosis_date")
#JsonSerialize(using = JsonDateSerializer.class)
private Date diagnosisDate;
#ManyToOne
#JoinColumn(name = "patient_chart_id")
private PatientChart patientChart;
public String getDiagnosisNote() {
return diagnosisNote;
}
public void setDiagnosisNote(String diagnosisNote) {
this.diagnosisNote = diagnosisNote;
}
public DiagnosisTypeEnum getType() {
return type;
}
public void setType(DiagnosisTypeEnum type) {
this.type = type;
}
public Date getDiagnosisDate() {
return diagnosisDate;
}
public void setDiagnosisDate(Date diagnosisDate) {
this.diagnosisDate = diagnosisDate;
}
public PatientChart getPatientChart() {
return patientChart;
}
public void setPatientChart(PatientChart patientChart) {
this.patientChart = patientChart;
}
}
My service:
public Diagnosis updateDiagnosis(IPRDTO clientDto, Long userId,
Long patientChartId, DiagnosisDTO diagnosisDTO, Long diagnosisId) throws Exception {
Diagnosis diagnosis = diagnosisRepository.findOne(diagnosisId);
if (diagnosis!=null){
if(diagnosis.getType().equals(DiagnosisTypeEnum.WORKING)){
BeanCopyUtil.copyProperties(diagnosisDTO, diagnosis, true);
return this.diagnosisRepository.saveAndFlush(diagnosis);
}
else{
throw new BusinessException("updateDiagnosisValidation");
}
}
throw new BusinessException("noDiagnosis");
}
My stack trace:
[2014-09-08 11:34:08,148] INFO com.zurelsoft.ipr.service.IDiagnosisService- Logged In User Id [1]:Started updateDiagnosis
diagnosis id 2
[2014-09-08 11:34:08,969] INFO org.hibernate.event.internal.DefaultLoadEventListener- HHH000327: Error performing load command : org.hibernate.HibernateException: More than one row with the given identifier was found: 2, for class: com.zurelsoft.ipr.model.Diagnosis
[2014-09-08 11:34:09,001] ERROR com.zurelsoft.ipr.service.IDiagnosisService- Logged In User Id [1]:Error Occurred updateDiagnosis
org.springframework.orm.jpa.JpaSystemException: org.hibernate.HibernateException: More than one row with the given identifier was found: 2, for class: com.zurelsoft.ipr.model.Diagnosis; nested exception is javax.persistence.PersistenceException: org.hibernate.HibernateException: More than one row with the given identifier was found: 2, for class: com.zurelsoft.ipr.model.Diagnosis
[2014-09-08 11:34:09,006] ERROR com.zurelsoft.ipr.client.DiagnosisWebService- org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:321)
org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:403)
org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:58)
org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213)
org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:163)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
com.sun.proxy.$Proxy85.findOne(Unknown Source)
com.zurelsoft.ipr.service.impl.DiagnosisServiceImpl.updateDiagnosis(DiagnosisServiceImpl.java:76)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:51)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:51)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:55)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
com.sun.proxy.$Proxy86.updateDiagnosis(Unknown Source)
com.zurelsoft.ipr.client.DiagnosisWebService.updateDiagnosis(DiagnosisWebService.java:98)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
org.springframework.web.servlet.FrameworkServlet.doPut(FrameworkServlet.java:849)
javax.servlet.http.HttpServlet.service(HttpServlet.java:644)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)
I get this HibernateException in this line alhough my table has now two rows with the same id.
Diagnosis diagnosis = diagnosisRepository.findOne(diagnosisId);
Please anyone help me with my mistake. What can be probable error in my code.

Hy, It woks for me:
Seems I have two choices: either cascade all and delete orphan on the one-to-one relationship, or explicitly call my repository class to look up and save the original Sheet every time I remove its relationship with Plate. I opted for the first choice and added this to the plate class:
#OneToOne(mappedBy = "plate", cascade = CascadeType.ALL, orphanRemoval = true)
https://stackoverflow.com/a/32636186/3255595

From Spring documentation:
T findOne(ID id)
Retrieves an entity by its id.
Seem that diagnosisId is not a primary key.

it sounds like you have more than one row in the database with the same id values!
Are you sure your id is really unique in the DB ?
Hibernate Exception
More than one row with the given identifier was found: 2, for class: com.zurelsoft.ipr.model.Diagnosis
tells that hibernate query executes returns more than one row (i.e 2) of class Diagnosis Please enable SQL logging and execute the select by hand and see what it returns

Column cannot have NULL value JAVA Server Side

I am new to java Client/Server coding.
I am implementing a REST Service. My Database has a table Customer (FirstName, LastName, Phone, Email, Address)
I am trying to send an ajax call from client side to POST method of this rest class.
However, the Database is throwing NULL Exception and gives me the error : Column 'Email' cannot be null
This is what I am doing in the post method:
#Path("customer")
public class CustomerREST {
#POST
#Produces(MediaType.APPLICATION_JSON)
public Response addCustomer(#FormParam("FirstName") String fname, #FormParam("LastName") String lname, #FormParam("Phone") String phone, #FormParam("Email") String email, #FormParam("Address") String address)
{
// , #FormParam("uname") String uname, #FormParam("password") String pwd
List<Login> L= DataAccessUtil.getAll(Login.class);
Integer size = L.size();
Login newLogin = new Login();
newLogin = L.get(size-1);
Customer newCustomer = new Customer();
newCustomer.setAddress("123");
newCustomer.setEmail("abc");
newCustomer.setFirstName("abc");
newCustomer.setLastName("abc");
newCustomer.setPhone("abc");
newCustomer.setLogin(newLogin);
DataAccessUtil.save(newCustomer);
try {
return Response.created(new URI("/"+newCustomer.getCustomerId())).build();
} catch (URISyntaxException exp) {
return Response.status(Status.BAD_REQUEST).entity(exp).build();
}
}
}
Now, I know that I am sending in some values but the server again throws a NULL Exception.
This is the Stack Trace:
Hibernate: insert into customer (Address, Email, FirstName, LastName, Phone,
idcustomer) values (?, ?, ?, ?, ?, ?)
Jan 07, 2014 10:03:12 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 1048, SQLState: 23000
Jan 07, 2014 10:03:12 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: Column 'Email' cannot be null
Jan 07, 2014 10:03:12 PM com.sun.jersey.spi.container.ContainerResponse mapMappableContainerException
SEVERE: The RuntimeException could not be mapped to a response, re-throwing to the HTTP container
org.hibernate.exception.ConstraintViolationException: Column 'Email' cannot be null
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.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:129)
at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81)
at com.sun.proxy.$Proxy67.executeUpdate(Unknown Source)
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:56)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3028)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3469)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:88)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:362)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:354)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:275)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1213)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:402)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)
at mypackage.DataAccessUtil.save(DataAccessUtil.java:13)
at serverside.CustomerREST.addCustomer(CustomerREST.java:82)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205)
at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)
at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1511)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1442)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1391)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1381)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:538)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:716)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'Email' cannot be null
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.Util.getInstance(Util.java:386)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1040)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4096)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4028)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2490)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2651)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2734)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2155)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2458)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2375)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2359)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:122)
... 52 more

You are trying to insert a value as null into a field that does not allow null values. The column in question is the Email column. Empty string is not the same as null, so you could just make it that if you need to insert with no value. Since you appear to be setting it in the code, it would most likely point to either a problem in the Hibernate config or something in your HQL/SQL, if you are doing the insert manually. You would have to share more of your code to really be able to tell, though.

Session is closed while creating Criteria

The following code throws SessionException at the line which creates the criteria object:
public User getUserByUsername(String username) {
try {
Criterion criterion = Restrictions.eq("username", username);
Criteria criteria = (Criteria) getSession().createCriteria(User.class).add(criterion);
return (User) criteria.uniqueResult();
}
catch(NullPointerException ex) {
return new User();
}
}
My getSession() method is as follows:
public Session getSession() {
if(session == null) {
session = hibernateUtil.getSessionFactory().getCurrentSession();
}
return session;
}
I have injected the hibernateUtil bean to the class which has getSession() method.
Following is the exception.
org.hibernate.SessionException: Session is closed!
at org.hibernate.internal.AbstractSessionImpl.errorIfClosed(AbstractSessionImpl.java:129)
at org.hibernate.internal.SessionImpl.createCriteria(SessionImpl.java:1554)
at com.csu.library.mvc.dao.implementation.UserDaoImpl.getUserByUsername(UserDaoImpl.java:23)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at com.sun.proxy.$Proxy55.getUserByUsername(Unknown Source)
at com.csu.library.mvc.service.impl.UserServiceImpl.getUser(UserServiceImpl.java:49)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at com.sun.proxy.$Proxy60.getUser(Unknown Source)
at com.csu.library.mvc.controller.UserController.homepage(UserController.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:920)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:827)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:801)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:947)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1009)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:680)

Your method of getting a session is rather weird. Yo shoul duse a sessionfactory, to obtain a session from within a transaction.
The session should not be an instance variable (assuming your using singleton scope services).