我下面有一个类，我从数据库加载这个对象，但是当我通过 JNDI 地址调用这个方法时，给出一些关于 kullainiciGrups 属性的错误，它是一个 java.util.List，如果此属性已删除，它无一异常(exception)地工作。堆栈跟踪在代码块下方；
您如何看待这个 persistenceBag 异常？ 谢谢。
package enlil.domain;
import java.io.Serializable;
import java.math.BigDecimal;
import java.util.Date;
import java.util.List;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.Lob;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
/**
* The persistent class for the PACS00_001 database table.
*
*/
@Entity
@Table(name="PACS00_001")
public class Kullanici implements Serializable {
private static final long serialVersionUID = 1L;
@Column(name="A_ACIKLAMAYETKI")
private BigDecimal aAciklamayetki;
@Column(name="A_ADI")
private String aAdi;
@Lob()
@Column(name="A_AYARLAR")
private String aAyarlar;
@Column(name="A_HBYSDOKKOD")
private String aHbysdokkod;
@Column(name="A_HBYSUSERKOD")
private String aHbysuserkod;
@Column(name="A_IPUCU")
private String aIpucu;
@Id
@Column(name="A_KODU")
private String aKodu;
@Column(name="A_MENUTARAMARAPORLARIYETKI")
private BigDecimal aMenutaramaraporlariyetki;
@Column(name="A_PAROLA")
private String aParola;
@Column(name="A_SOYADI")
private String aSoyadi;
@Column(name="A_YETKITUR")
private BigDecimal aYetkitur;
@Temporal( TemporalType.DATE)
@Column(name="T_ISLEMTAR")
private Date tIslemtar;
@Column(name="T_USERID")
private String tUserid;
//bi-directional many-to-one association to KullaniciGrup
@OneToMany(mappedBy="kullaniciGruplari", fetch = FetchType.LAZY)
private List<KullaniciGrup> kullaniciGrups;
public Kullanici() {
}
public BigDecimal getAAciklamayetki() {
return this.aAciklamayetki;
}
public void setAAciklamayetki(BigDecimal aAciklamayetki) {
this.aAciklamayetki = aAciklamayetki;
}
public String getAAdi() {
return this.aAdi;
}
public void setAAdi(String aAdi) {
this.aAdi = aAdi;
}
public String getAAyarlar() {
return this.aAyarlar;
}
public void setAAyarlar(String aAyarlar) {
this.aAyarlar = aAyarlar;
}
public String getAHbysdokkod() {
return this.aHbysdokkod;
}
public void setAHbysdokkod(String aHbysdokkod) {
this.aHbysdokkod = aHbysdokkod;
}
public String getAHbysuserkod() {
return this.aHbysuserkod;
}
public void setAHbysuserkod(String aHbysuserkod) {
this.aHbysuserkod = aHbysuserkod;
}
public String getAIpucu() {
return this.aIpucu;
}
public void setAIpucu(String aIpucu) {
this.aIpucu = aIpucu;
}
public String getAKodu() {
return this.aKodu;
}
public void setAKodu(String aKodu) {
this.aKodu = aKodu;
}
public BigDecimal getAMenutaramaraporlariyetki() {
return this.aMenutaramaraporlariyetki;
}
public void setAMenutaramaraporlariyetki(BigDecimal aMenutaramaraporlariyetki) {
this.aMenutaramaraporlariyetki = aMenutaramaraporlariyetki;
}
public String getAParola() {
return this.aParola;
}
public void setAParola(String aParola) {
this.aParola = aParola;
}
public String getASoyadi() {
return this.aSoyadi;
}
public void setASoyadi(String aSoyadi) {
this.aSoyadi = aSoyadi;
}
public BigDecimal getAYetkitur() {
return this.aYetkitur;
}
public void setAYetkitur(BigDecimal aYetkitur) {
this.aYetkitur = aYetkitur;
}
public Date getTIslemtar() {
return this.tIslemtar;
}
public void setTIslemtar(Date tIslemtar) {
this.tIslemtar = tIslemtar;
}
public String getTUserid() {
return this.tUserid;
}
public void setTUserid(String tUserid) {
this.tUserid = tUserid;
}
/**
* @param kullaniciGrups the kullaniciGrups to set
*/
public void setKullaniciGrups(List<KullaniciGrup> kullaniciGrups) {
this.kullaniciGrups = kullaniciGrups;
}
/**
* @return the kullaniciGrups
*/
public List<KullaniciGrup> getKullaniciGrups() {
return kullaniciGrups;
}
}
堆栈跟踪；
2010-12-10T10:46:42.181+0200|WARNING|sun-appserver2.1|javax.enterprise.resource.corba.ee.S1AS-ORB.rpc.encoding|_ThreadID=18;_ThreadName=httpSSLWorkerThread-8080-1;org.hibernate.collection.PersistentBag;<<Context:ReaderWriter[value(enlil.domain.Kullanici)]:enlil.domain.Kullanici.kullaniciGrups>>;_RequestID=1c9792ff-406f-44d0-8315-0d9260807842;|"IOP00810257: (MARSHAL) Could not load class org.hibernate.collection.PersistentBag<<Context:ReaderWriter[value(enlil.domain.Kullanici)]:enlil.domain.Kullanici.kullaniciGrups>>"
org.omg.CORBA.MARSHAL: vmcid: SUN minor code: 257 completed: Maybe
at com.sun.corba.ee.impl.logging.ORBUtilSystemException.couldNotFindClass(ORBUtilSystemException.java:9772)
at com.sun.corba.ee.impl.logging.ORBUtilSystemException.couldNotFindClass(ORBUtilSystemException.java:9787)
at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1042)
at com.sun.corba.ee.impl.encoding.CDRInputStream.read_value(CDRInputStream.java:475)
at com.sun.corba.ee.impl.io.IIOPInputStream.inputObjectField(IIOPInputStream.java:2009)
at com.sun.corba.ee.impl.io.IIOPInputStream.inputClassFields(IIOPInputStream.java:2240)
at com.sun.corba.ee.impl.io.IIOPInputStream.inputObject(IIOPInputStream.java:1224)
at com.sun.corba.ee.impl.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:427)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:364)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:330)
at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.readRMIIIOPValueType(CDRInputStream_1_0.java:966)
at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1052)
at com.sun.corba.ee.impl.encoding.CDRInputStream.read_value(CDRInputStream.java:475)
at com.sun.corba.ee.impl.presentation.rmi.DynamicMethodMarshallerImpl$14.read(DynamicMethodMarshallerImpl.java:382)
at com.sun.corba.ee.impl.presentation.rmi.DynamicMethodMarshallerImpl.readResult(DynamicMethodMarshallerImpl.java:483)
at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.privateInvoke(StubInvocationHandlerImpl.java:195)
at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:152)
at com.sun.corba.ee.impl.presentation.rmi.bcel.BCELStubBase.invoke(BCELStubBase.java:225)
at enlil.pacs.kullanici.__IKullaniciFayda_Remote_DynamicStub.oturumAcanKullaniciyiGetir(enlil/pacs/kullanici/__IKullaniciFayda_Remote_DynamicStub.java)
at enlil.pacs.kullanici._IKullaniciFayda_Wrapper.oturumAcanKullaniciyiGetir(enlil/pacs/kullanici/_IKullaniciFayda_Wrapper.java)
at enlil.pacs.server.modul.KullaniciYonetimiServlet.kullaniciYetkileriniGetir(KullaniciYonetimiServlet.java:70)
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 com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:562)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:207)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:243)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:427)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:333)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at enlil.pacs.server.guvenlik.SistemeGirisFiltresi.doFilter(SistemeGirisFiltresi.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:313)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:287)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:218)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:222)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1093)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:166)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1093)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:291)
at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:666)
at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:597)
at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:872)
at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)
at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)
at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)
at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:264)
at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)
|#]
最佳答案
您正在发送 hibernate 实体/集合。有几个问题:
- 可能无法加载集合
- 端点可能没有在其类路径上 hibernate 。
因此在发送之前，您应该初始化集合并取消代理它(即获取原始集合)。这可能仍然行不通，因为 hibernate 设置了它自己的实现 java.util.List 的集合。所以从那里你有两个选择:
- 创建
new ArrayList(originalCollection)- 这将复制ArrayList 中的元素
- 在端点的类路径上添加 hibernate 。
关于java - 无法加载类 persistentBag，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/4407148/