Spring MVC Failed to convert property value of type 'java.lang.Integer' -

i have 2 entities, 1 of have composit primary key(id, version), version manytoone link entity(uchastokversion) field id.

@entity @table(name = "uchastok_versions",schema="tb") public class uchastokversion {      @id     @generatedvalue(strategy = generationtype.identity)     @column(name = "id")     private integer id;      @column(name = "date_activate", columndefinition="date unique")     @datetimeformat(pattern="dd.mm.yyyy")     @temporal(temporaltype.date)     private date dateactivate;      @transient     private list<uchastok> uchastki; 

@entity @idclass(uchastokid.class) @table(name = "uchastki", schema = "tb") public class uchastok  implements serializable{     /**      *       */     private static final long serialversionuid = 1l;      @id     @column(name = "id", unique = false, nullable = false)     private integer id;      @column(name = "name")     private string name;      @id     @manytoone(targetentity=uchastokversion.class,fetch = fetchtype.lazy)     @joincolumn(name = "id_version", nullable = false,referencedcolumnname="id")          private uchastokversion version; 

public class uchastokid implements serializable {      private static final long serialversionuid = 343l;      private int id;     private uchastokversion version;      public uchastokid() {      }       public int getid() {         return id;     }        public void setid(int id) {         this.id = id;     }        public uchastokversion getversion() {         return version;     }        public void setversion(uchastokversion version) {         this.version = version;     }        @override     public int hashcode() {         return this.id + this.version.getid();     }       @override     public boolean equals(object obj) {         if (obj instanceof uchastokid) {             uchastokid placeid = (uchastokid) obj;             return (placeid.id == this.id)                     && (placeid.version.getid() == this.version.getid());         }         return false;     } } 

public uchastokversion create(uchastokversion record) {     try {         repository.saveandflush(record);         return saveuchastki(record);     } catch (exception e) {         logger.error("create uchastokversion error ", e);                    return null;     } }  private uchastokversion saveuchastki(uchastokversion uchastokversion){     (uchastok iterable_element : uchastokversion.getuchastki()) {         iterable_element.setversion(uchastokversion);         uchastokservice.create(iterable_element);     }     return repository.findbyid(uchastokversion.getid()); } 

when try run code have exception.

hibernate: insert tb.uchastok_versions (date_activate) values (?) hibernate: select nextval('seq_uchastok_id')::int 13:50:23,121 error http-bio-8080-exec-18 uchastokversionserviceimpl:create:48 - create uchastokversion error  org.springframework.beans.conversionnotsupportedexception: failed convert property value of type 'java.lang.integer' required type 'ru.crtc.arlm.model.entity.tb.uchastokversion' property 'version'; nested exception java.lang.illegalstateexception: cannot convert value of type [java.lang.integer] required type [ru.crtc.arlm.model.entity.tb.uchastokversion] property 'version': no matching editors or conversion strategy found     @ org.springframework.beans.beanwrapperimpl.convertifnecessary(beanwrapperimpl.java:473)     @ org.springframework.beans.beanwrapperimpl.convertforproperty(beanwrapperimpl.java:509)     @ org.springframework.beans.beanwrapperimpl.setpropertyvalue(beanwrapperimpl.java:1115)     @ org.springframework.beans.beanwrapperimpl.setpropertyvalue(beanwrapperimpl.java:898)     @ org.springframework.data.jpa.repository.support.jpametamodelentityinformation$directfieldaccessfallbackbeanwrapper.setpropertyvalue(jpametamodelentityinformation.java:297)     @ org.springframework.data.jpa.repository.support.jpametamodelentityinformation$identifierderivingdirectfieldaccessfallbackbeanwrapper.setpropertyvalue(jpametamodelentityinformation.java:340)     @ org.springframework.data.jpa.repository.support.jpametamodelentityinformation.getid(jpametamodelentityinformation.java:124)     @ org.springframework.data.repository.core.support.abstractentityinformation.isnew(abstractentityinformation.java:51)     @ org.springframework.data.jpa.repository.support.jpametamodelentityinformation.isnew(jpametamodelentityinformation.java:191)     @ org.springframework.data.jpa.repository.support.simplejparepository.save(simplejparepository.java:368)     @ org.springframework.data.jpa.repository.support.simplejparepository.saveandflush(simplejparepository.java:383)     @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)     @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)     @ java.lang.reflect.method.invoke(method.java:601)     @ org.springframework.data.repository.core.support.repositoryfactorysupport$queryexecutormethodinterceptor.executemethodon(repositoryfactorysupport.java:358)     @ org.springframework.data.repository.core.support.repositoryfactorysupport$queryexecutormethodinterceptor.invoke(repositoryfactorysupport.java:343)     @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:179)     @ org.springframework.transaction.interceptor.transactioninterceptor$1.proceedwithinvocation(transactioninterceptor.java:98)     @ org.springframework.transaction.interceptor.transactionaspectsupport.invokewithintransaction(transactionaspectsupport.java:262)     @ org.springframework.transaction.interceptor.transactioninterceptor.invoke(transactioninterceptor.java:95)     @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:179)     @ org.springframework.dao.support.persistenceexceptiontranslationinterceptor.invoke(persistenceexceptiontranslationinterceptor.java:136)     @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:179)     @ org.springframework.data.jpa.repository.support.lockmoderepositorypostprocessor$lockmodepopulatingmethodintercceptor.invoke(lockmoderepositorypostprocessor.java:92)     @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:179)     @ org.springframework.aop.interceptor.exposeinvocationinterceptor.invoke(exposeinvocationinterceptor.java:92)     @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:179)     @ org.springframework.aop.framework.jdkdynamicaopproxy.invoke(jdkdynamicaopproxy.java:207)     @ $proxy567.saveandflush(unknown source)     @ ru.crtc.arlm.service.tb.uchastokserviceimpl.create(uchastokserviceimpl.java:64)     @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)     @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)     @ java.lang.reflect.method.invoke(method.java:601)     @ org.springframework.aop.support.aoputils.invokejoinpointusingreflection(aoputils.java:317)     @ org.springframework.aop.framework.reflectivemethodinvocation.invokejoinpoint(reflectivemethodinvocation.java:190)     @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:157)     @ org.springframework.transaction.interceptor.transactioninterceptor$1.proceedwithinvocation(transactioninterceptor.java:98)     @ org.springframework.transaction.interceptor.transactionaspectsupport.invokewithintransaction(transactionaspectsupport.java:262)     @ org.springframework.transaction.interceptor.transactioninterceptor.invoke(transactioninterceptor.java:95)     @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:179)     @ org.springframework.aop.framework.jdkdynamicaopproxy.invoke(jdkdynamicaopproxy.java:207)     @ $proxy573.create(unknown source)     @ ru.crtc.arlm.service.tb.uchastokversionserviceimpl.saveuchastki(uchastokversionserviceimpl.java:56)     @ ru.crtc.arlm.service.tb.uchastokversionserviceimpl.create(uchastokversionserviceimpl.java:46)     @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)     @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)     @ java.lang.reflect.method.invoke(method.java:601)     @ org.springframework.aop.support.aoputils.invokejoinpointusingreflection(aoputils.java:317)     @ org.springframework.aop.framework.reflectivemethodinvocation.invokejoinpoint(reflectivemethodinvocation.java:190)     @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:157)     @ org.springframework.transaction.interceptor.transactioninterceptor$1.proceedwithinvocation(transactioninterceptor.java:98)     @ org.springframework.transaction.interceptor.transactionaspectsupport.invokewithintransaction(transactionaspectsupport.java:262)     @ org.springframework.transaction.interceptor.transactioninterceptor.invoke(transactioninterceptor.java:95)     @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:179)     @ org.springframework.aop.framework.jdkdynamicaopproxy.invoke(jdkdynamicaopproxy.java:207)     @ $proxy574.create(unknown source)     @ ru.crtc.arlm.controller.tb.tbnsicontroller.saveuchastokversion(tbnsicontroller.java:89)     @ ru.crtc.arlm.controller.tb.tbnsicontroller$$fastclassbycglib$$aad442cd.invoke(<generated>)     @ org.springframework.cglib.proxy.methodproxy.invoke(methodproxy.java:204)     @ org.springframework.aop.framework.cglibaopproxy$cglibmethodinvocation.invokejoinpoint(cglibaopproxy.java:713)     @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:157)     @ org.springframework.aop.interceptor.exposeinvocationinterceptor.invoke(exposeinvocationinterceptor.java:92)     @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:179)     @ org.springframework.aop.framework.cglibaopproxy$dynamicadvisedinterceptor.intercept(cglibaopproxy.java:646)     @ ru.crtc.arlm.controller.tb.tbnsicontroller$$enhancerbycglib$$ca110f66.saveuchastokversion(<generated>)     @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)     @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)     @ java.lang.reflect.method.invoke(method.java:601)     @ org.springframework.web.method.support.invocablehandlermethod.invoke(invocablehandlermethod.java:214)     @ 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:748)     @ org.springframework.web.servlet.mvc.method.annotation.requestmappinghandleradapter.handleinternal(requestmappinghandleradapter.java:689)     @ org.springframework.web.servlet.mvc.method.abstracthandlermethodadapter.handle(abstracthandlermethodadapter.java:83)     @ org.springframework.web.servlet.dispatcherservlet.dodispatch(dispatcherservlet.java:945)     @ org.springframework.web.servlet.dispatcherservlet.doservice(dispatcherservlet.java:876)     @ org.springframework.web.servlet.frameworkservlet.processrequest(frameworkservlet.java:931)     @ org.springframework.web.servlet.frameworkservlet.dopost(frameworkservlet.java:833)     @ javax.servlet.http.httpservlet.service(httpservlet.java:647)     @ org.springframework.web.servlet.frameworkservlet.service(frameworkservlet.java:807)     @ javax.servlet.http.httpservlet.service(httpservlet.java:728)     @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:305)     @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:210)     @ org.springframework.web.filter.characterencodingfilter.dofilterinternal(characterencodingfilter.java:88)     @ org.springframework.web.filter.onceperrequestfilter.dofilter(onceperrequestfilter.java:108)     @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:243)     @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:210)     @ org.springframework.orm.jpa.support.openentitymanagerinviewfilter.dofilterinternal(openentitymanagerinviewfilter.java:177)     @ org.springframework.web.filter.onceperrequestfilter.dofilter(onceperrequestfilter.java:108)     @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:243)     @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:210)     @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:330)     @ org.springframework.security.web.access.intercept.filtersecurityinterceptor.invoke(filtersecurityinterceptor.java:118)     @ org.springframework.security.web.access.intercept.filtersecurityinterceptor.dofilter(filtersecurityinterceptor.java:84)     @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342)     @ org.springframework.security.web.access.exceptiontranslationfilter.dofilter(exceptiontranslationfilter.java:113)     @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342)     @ org.springframework.security.web.session.sessionmanagementfilter.dofilter(sessionmanagementfilter.java:103)     @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342)     @ org.springframework.security.web.authentication.anonymousauthenticationfilter.dofilter(anonymousauthenticationfilter.java:113)     @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342)     @ org.springframework.security.web.servletapi.securitycontextholderawarerequestfilter.dofilter(securitycontextholderawarerequestfilter.java:154)     @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342)     @ org.springframework.security.web.savedrequest.requestcacheawarefilter.dofilter(requestcacheawarefilter.java:45)     @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342)     @ org.springframework.security.web.authentication.abstractauthenticationprocessingfilter.dofilter(abstractauthenticationprocessingfilter.java:199)     @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342)     @ org.springframework.security.web.authentication.logout.logoutfilter.dofilter(logoutfilter.java:110)     @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342)     @ org.springframework.security.web.context.request.async.webasyncmanagerintegrationfilter.dofilterinternal(webasyncmanagerintegrationfilter.java:50)     @ org.springframework.web.filter.onceperrequestfilter.dofilter(onceperrequestfilter.java:108)     @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342)     @ org.springframework.security.web.context.securitycontextpersistencefilter.dofilter(securitycontextpersistencefilter.java:87)     @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342)     @ org.springframework.security.web.filterchainproxy.dofilterinternal(filterchainproxy.java:192)     @ org.springframework.security.web.filterchainproxy.dofilter(filterchainproxy.java:160)     @ org.springframework.web.filter.delegatingfilterproxy.invokedelegate(delegatingfilterproxy.java:344)     @ org.springframework.web.filter.delegatingfilterproxy.dofilter(delegatingfilterproxy.java:261)     @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:243)     @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:210)     @ org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:222)     @ org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:123)     @ org.apache.catalina.authenticator.authenticatorbase.invoke(authenticatorbase.java:502)     @ org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:171)     @ org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:99)     @ org.apache.catalina.valves.accesslogvalve.invoke(accesslogvalve.java:953)     @ org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:118)     @ org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:408)     @ org.apache.coyote.http11.abstracthttp11processor.process(abstracthttp11processor.java:1023)     @ org.apache.coyote.abstractprotocol$abstractconnectionhandler.process(abstractprotocol.java:589)     @ org.apache.tomcat.util.net.jioendpoint$socketprocessor.run(jioendpoint.java:310)     @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1110)     @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:603)     @ java.lang.thread.run(thread.java:722) caused by: java.lang.illegalstateexception: cannot convert value of type [java.lang.integer] required type [ru.crtc.arlm.model.entity.tb.uchastokversion] property 'version': no matching editors or conversion strategy found     @ org.springframework.beans.typeconverterdelegate.convertifnecessary(typeconverterdelegate.java:267)     @ org.springframework.beans.beanwrapperimpl.convertifnecessary(beanwrapperimpl.java:458)     ... 137 more 

my pom.xml.

     <name>arlm maven webapp</name>   <url>http://maven.apache.org</url>     <properties>         <jdk.version>1.7</jdk.version>         <spring.version>4.0.0.release</spring.version>         <org.springframework-security-version>3.2.0.release</org.springframework-security-version>         <org.aspectj-version>1.6.11</org.aspectj-version>         <slf4j.version>1.7.5</slf4j.version>         <jackson.version>1.9.12</jackson.version>         <hibernate.version>4.3.4.final</hibernate.version>         <querydsl.version>3.3.1</querydsl.version>         <spring-data-jpa.version>1.5.1.release</spring-data-jpa.version>     </properties> 

i don't know reason of exception.

update 1: found combination of dependencies, work fine.

<hibernate.version>4.2.8.final</hibernate.version> <spring-data-jpa.version>1.2.0.release</spring-data-jpa.version>  

if change spring-data-jpa 1.4.3 version, exception appear. can resolve problem?

user @responsebody annotation @requestmapping below -

@requestmapping(value = "/test", method = requestmethod.get)     @responsebody     public int testit() {         return 1;     }