问题
I am using lombok 1.18.6 in my spring boot project and I have @NoArgsConstructor but still am getting org.springframework.orm.jpa.JpaSystemException: No default constructor for entity: : com.validation.entity.Client; nested exception is org.hibernate.InstantiationException: No default constructor for entity: : com.validation.entity.Client] with root cause
Below is my Client entity
import lombok.AccessLevel
import lombok.Data
import lombok.NoArgsConstructor
import org.hibernate.annotations.Fetch
import org.hibernate.annotations.FetchMode
import org.hibernate.annotations.Nationalized
import javax.persistence.CascadeType
import javax.persistence.Column
import javax.persistence.Entity
import javax.persistence.GeneratedValue
import javax.persistence.GenerationType
import javax.persistence.Id
import javax.persistence.OneToMany
@Data
@NoArgsConstructor(access = AccessLevel.PUBLIC)
@Entity
class Client implements Serializable {
private static final long serialVersionUID = 1L
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id
@Nationalized
@Column(unique = true, nullable = false)
private String name
@Column(nullable = false)
private boolean active
@Nationalized
@Column(unique = true, nullable = false)
private String externalId
@Fetch(value = FetchMode.SELECT)
@OneToMany(mappedBy="client", cascade=CascadeType.ALL, targetEntity = RuleSet.class)
private Set<RuleSet> ruleSets
Client(String name, boolean active, String externalId){
this.name = name
this.active = active
this.externalId = externalId
}
}
Below is my ClientRepository
import com.validation.entity.Client
import com.validation.entity.RuleDefinition
import org.springframework.data.repository.CrudRepository
import org.springframework.data.repository.PagingAndSortingRepository
import org.springframework.data.repository.query.Param
interface ClientRepository extends PagingAndSortingRepository<Client, Long> {
Client findByName(@Param("name")String name)
Client findByNameIgnoreCase(@Param("name")String name)
Client findByExternalId(@Param("lawId")String id)
Client findByExternalIdIgnoreCase(@Param("lawId")String id)
Client findByRuleSetsId(Long id)
Set<Client> findByNameIgnoreCaseOrExternalIdIgnoreCase(@Param("name")String name,@Param("lawId")String id)
Set<Client> findByNameContainingIgnoreCase(@Param("name")String name)
}
Can someone please help me why am I getting No default constructor for entity even with @NoArgsConstructor(access = AccessLevel.PUBLIC)
Below is the full stacktrace when I make get request https://localhost:9443/api/clients
2019-03-22 11:46:44 - Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.orm.jpa.JpaSystemException: No default constructor for entity: : com.validation.entity.Client; nested exception is org.hibernate.InstantiationException: No default constructor for entity: : com.validation.entity.Client] with root cause
org.hibernate.InstantiationException: No default constructor for entity: : com.validation.entity.Client
at org.hibernate.tuple.PojoInstantiator.instantiate(PojoInstantiator.java:85)
at org.hibernate.tuple.PojoInstantiator.instantiate(PojoInstantiator.java:105)
at org.hibernate.tuple.entity.AbstractEntityTuplizer.instantiate(AbstractEntityTuplizer.java:673)
at org.hibernate.persister.entity.AbstractEntityPersister.instantiate(AbstractEntityPersister.java:4946)
at org.hibernate.internal.SessionImpl.instantiate(SessionImpl.java:1682)
at org.hibernate.internal.SessionImpl.instantiate(SessionImpl.java:1666)
at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1663)
at org.hibernate.loader.Loader.getRow(Loader.java:1561)
at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:731)
at org.hibernate.loader.Loader.processResultSet(Loader.java:990)
at org.hibernate.loader.Loader.doQuery(Loader.java:948)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:340)
at org.hibernate.loader.Loader.doList(Loader.java:2689)
at org.hibernate.loader.Loader.doList(Loader.java:2672)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2506)
at org.hibernate.loader.Loader.list(Loader.java:2501)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:504)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:395)
at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:220)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1508)
at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1537)
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1505)
at org.hibernate.query.Query.getResultList(Query.java:135)
at org.hibernate.query.criteria.internal.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:74)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.readPage(SimpleJpaRepository.java:569)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:388)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:356)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:359)
at org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:200)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:644)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:608)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$invoke$3(RepositoryFactorySupport.java:595)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:595)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:59)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:135)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
at com.sun.proxy.$Proxy134.findAll(Unknown Source)
at org.springframework.data.repository.support.PagingAndSortingRepositoryInvoker.invokeFindAll(PagingAndSortingRepositoryInvoker.java:74)
at org.springframework.data.rest.core.support.UnwrappingRepositoryInvokerFactory$UnwrappingRepositoryInvoker.invokeFindAll(UnwrappingRepositoryInvokerFactory.java:158)
at org.springframework.data.rest.webmvc.RepositoryEntityController.getCollectionResource(RepositoryEntityController.java:202)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:117)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:106)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Below is the decompiled Client class
import groovy.lang.GroovyObject;
import groovy.lang.MetaClass;
import java.io.Serializable;
import java.util.Set;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import org.codehaus.groovy.runtime.callsite.CallSite;
import org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation;
import org.codehaus.groovy.runtime.typehandling.ShortTypeHandling;
import org.hibernate.annotations.Fetch;
import org.hibernate.annotations.FetchMode;
import org.hibernate.annotations.Nationalized;
@Entity
public class Client
implements Serializable, GroovyObject
{
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;
@Nationalized
@Column(nullable=false, unique=true)
private String name;
@Column(nullable=false)
private boolean active;
@Nationalized
@Column(nullable=false, unique=true)
private String externalId;
@Fetch(FetchMode.SELECT)
@OneToMany(targetEntity=RuleSet.class, mappedBy="client", cascade={javax.persistence.CascadeType.ALL})
private Set<RuleSet> ruleSets;
public Client(String name, boolean active, String externalId)
{
MetaClass localMetaClass = $getStaticMetaClass();this.metaClass = localMetaClass;String str1 = name;this.name = ((String)ShortTypeHandling.castToString(str1));
boolean bool = active;this.active = DefaultTypeTransformation.booleanUnbox(Boolean.valueOf(bool));
String str2 = externalId;this.externalId = ((String)ShortTypeHandling.castToString(str2));
}
}
回答1:
Based on your de-compiled output you are using Groovy, not Java. Lombok doesn't work well with Groovy. Your decompiled code shows this, there are no Lombok augmentations e.g. getters are not created by @Data.
If you plan to continue mixing Lombok with Groovy you need to revisit your project setup. Personally I'd not mix these two things.
回答2:
It is simply not true that Lombok doesn't work well with Java, like stated above and in Lombok doesn't work well with Groovy.
There is no problem with consuming Lombok annotated Java Object in Groovy code, see also examples here here
Lombok annotations in Groovy code are simply ignored. Groovy does not support Lombok annotations. So this more a issue of Groovy than visa versa.
That relativizes the statements not to use both. I think that's is the whole point of JVM based languages : the "relative" good interoperability (Java, Groovy, JRuby, Kotlin etc).
来源：https://stackoverflow.com/questions/55304021/groovy-lombok-noargsconstructor-not-creating-default-constructor