次のように HibernateSession クラスから load メソッドを使用すると、次の例外が発生します。
getCurrentSession().load(entityClass, id);.
次を使用すると、例外が発生しません。
getCurrentSession().get(entityClass, id);.
クラスコードはこちら
package com.company.x.y.field;
@Entity
@Table(name = "FIELD")
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name = "FIELDTYPE")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE,region="xEntity")
public abstract class AbstractField extends AbstractEntity {
private static final long serialVersionUID = 1L;
private final ValueType valueType;
private final FieldType fieldType;
private DataPoint dataPoint;
private String name;
private String title;
private String guid;
private boolean deleted;
private Integer sequence;
protected AbstractField(FieldType fieldType, ValueType valueType) {
this.fieldType = fieldType;
this.valueType = valueType;
}
@Id
@SequenceGenerator(name = "SEQ_FIELD_ID", sequenceName = "SEQ_FIELD_ID", allocationSize = 1)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "SEQ_FIELD_ID")
@Override
@Column(name = "FIELD_ID")
public Long getId() {
return id;
}
@Transient
public ValueType getValueType() {
return valueType;
}
@Transient
public FieldType getFieldType() {
return fieldType;
}
@ManyToOne
//@JoinColumn(name = "DP_ID", updatable = false)
@JoinColumn(name = "DP_ID")
public DPClass getDPClass() {
return dpClass;
}
public void setDataPoint(DPClass dpClass) {
this.dpClass = dpClass;
}
@Column(name = "NAME")
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Column(name = "TITLE")
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
@Column(name = "GUID")
public String getGuid() {
if (StringUtils.isEmpty(guid)) {
guid = UUID.randomUUID().toString().toUpperCase().replaceAll("-", "");
}
return guid;
}
public void setGuid(String guid) {
this.guid = guid;
}
@Column(name = "DELETED_IND")
public boolean isDeleted() {
return deleted;
}
public void setDeleted(boolean deleted) {
this.deleted = deleted;
}
@Column(name = "SEQUENCE")
public Integer getSequence() {
return sequence;
}
public void setSequence(Integer sequence) {
this.sequence = sequence;
}
@Column(name = "CREAT_TS")
public Date getDateCreated() {
return dateCreated;
}
@Column(name = "CREAT_USER")
public String getUserCreated() {
return userCreated;
}
@Column(name = "LAST_UPDATE_TS")
public Date getDateUpdated() {
return dateUpdated;
}
@Column(name = "LAST_UPDATE_USER")
public String getUserUpdated() {
return userUpdated;
}
}
例外は次のとおりです。
org.hibernate.HibernateException: Javassist Enhancement failed: com.company.x.y.field.AbstractField
at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.getProxy(JavassistLazyInitializer.java:142)
at org.hibernate.proxy.pojo.javassist.JavassistProxyFactory.getProxy(JavassistProxyFactory.java:71)
at org.hibernate.tuple.entity.AbstractEntityTuplizer.createProxy(AbstractEntityTuplizer.java:631)
at org.hibernate.persister.entity.AbstractEntityPersister.createProxy(AbstractEntityPersister.java:3737)
at org.hibernate.event.def.DefaultLoadEventListener.createProxyIfNecessary(DefaultLoadEventListener.java:360)
at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:281)
at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:152)
at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:1090)
at org.hibernate.impl.SessionImpl.load(SessionImpl.java:985)
at org.hibernate.impl.SessionImpl.load(SessionImpl.java:978)
at com.company.x.y.field.app.FieldServiceImpl.getById(FieldServiceImpl.java:152)
at com.company.x.y.field.app.FieldServiceImpl.getById(FieldServiceImpl.java:1)
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:318)
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:202)
at $Proxy67.getById(Unknown Source)
at com.company.impl.web.AbstractEntityBean.getEntity(AbstractEntityBean.java:36)
at sun.reflect.GeneratedMethodAccessor289.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:302)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at com.sun.el.parser.AstValue.getValue(AstValue.java:116)
at com.sun.el.parser.AstValue.getValue(AstValue.java:163)
at com.sun.el.parser.AstEqual.getValue(AstEqual.java:54)
at com.sun.el.parser.AstOr.getValue(AstOr.java:54)
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:219)
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:193)
at javax.faces.component.UIComponentBase.isRendered(UIComponentBase.java:422)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1038)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1048)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1048)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1048)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1048)
at org.primefaces.component.tabview.TabView.processDecodes(TabView.java:243)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1048)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1048)
at org.primefaces.component.tabview.TabView.processDecodes(TabView.java:243)
at javax.faces.component.UIForm.processDecodes(UIForm.java:216)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1048)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1048)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:926)
at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:508)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:311)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:64)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:101)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:182)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:173)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:185)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:151)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:269)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.InstantiationException: com.company.x.y.field.AbstractField_$$_javassist_28
at java.lang.Class.newInstance0(Class.java:340)
at java.lang.Class.newInstance(Class.java:308)
at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.getProxy(JavassistLazyInitializer.java:139)
... 100 more
何が原因か誰かが考えを与えてくれたら、感謝します>ありがとう。
