Web Services Deep XML Error - web-services

Question

The error occurs when I try to get a list from two tables
i.e University and Usermaster, where Usermaster is the parent Table.
I am trying to get data from both tables based on University .
University Entity
package entity;
import java.io.Serializable;
import java.util.List;
import javax.persistence.Basic;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.Lob;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.OneToOne;
import javax.persistence.Table;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
/**
*
* #author 3gth
*/
#Entity
#Table(name = "university")
#XmlRootElement
#NamedQueries({
#NamedQuery(name = "University.findAll", query = "SELECT u FROM University u"),
#NamedQuery(name = "University.findByUniversityUname", query = "SELECT u FROM University u WHERE u.universityUname = :universityUname"),
#NamedQuery(name = "University.findByUniversityRegNo", query = "SELECT u FROM University u WHERE u.universityRegNo = :universityRegNo"),
#NamedQuery(name = "University.findByUniversityWebsite", query = "SELECT u FROM University u WHERE u.universityWebsite = :universityWebsite")})
public class University implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#Basic(optional = false)
#NotNull
#Size(min = 1, max = 50)
#Column(name = "universityUname")
private String universityUname;
#Basic(optional = false)
#NotNull
#Size(min = 1, max = 10)
#Column(name = "universityRegNo")
private String universityRegNo;
#Basic(optional = false)
#NotNull
#Size(min = 1, max = 100)
#Column(name = "universityWebsite")
private String universityWebsite;
#Basic(optional = false)
#NotNull
#Lob
#Size(min = 1, max = 65535)
#Column(name = "universityDesc")
private String universityDesc;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "universityUname")
private List<College> collegeList;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "universityUname")
private List<Student> studentList;
#JoinColumn(name = "universityUname", referencedColumnName = "username", insertable = false, updatable = false)
#OneToOne(optional = false)
private Usermaster usermaster;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "universityUname")
private List<Faculty> facultyList;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "universityUname")
private List<Course> courseList;
public University() {
}
public University(String universityUname) {
this.universityUname = universityUname;
}
public University(String universityUname, String universityRegNo, String universityWebsite, String universityDesc) {
this.universityUname = universityUname;
this.universityRegNo = universityRegNo;
this.universityWebsite = universityWebsite;
this.universityDesc = universityDesc;
}
public String getUniversityUname() {
return universityUname;
}
public void setUniversityUname(String universityUname) {
this.universityUname = universityUname;
}
public String getUniversityRegNo() {
return universityRegNo;
}
public void setUniversityRegNo(String universityRegNo) {
this.universityRegNo = universityRegNo;
}
public String getUniversityWebsite() {
return universityWebsite;
}
public void setUniversityWebsite(String universityWebsite) {
this.universityWebsite = universityWebsite;
}
public String getUniversityDesc() {
return universityDesc;
}
public void setUniversityDesc(String universityDesc) {
this.universityDesc = universityDesc;
}
#XmlTransient
public List<College> getCollegeList() {
return collegeList;
}
public void setCollegeList(List<College> collegeList) {
this.collegeList = collegeList;
}
#XmlTransient
public List<Student> getStudentList() {
return studentList;
}
public void setStudentList(List<Student> studentList) {
this.studentList = studentList;
}
public Usermaster getUsermaster() {
return usermaster;
}
public void setUsermaster(Usermaster usermaster) {
this.usermaster = usermaster;
}
#XmlTransient
public List<Faculty> getFacultyList() {
return facultyList;
}
public void setFacultyList(List<Faculty> facultyList) {
this.facultyList = facultyList;
}
#XmlTransient
public List<Course> getCourseList() {
return courseList;
}
public void setCourseList(List<Course> courseList) {
this.courseList = courseList;
}
#Override
public int hashCode() {
int hash = 0;
hash += (universityUname != null ? universityUname.hashCode() : 0);
return hash;
}
#Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are not set
if (!(object instanceof University)) {
return false;
}
University other = (University) object;
if ((this.universityUname == null && other.universityUname != null) || (this.universityUname != null && !this.universityUname.equals(other.universityUname))) {
return false;
}
return true;
}
#Override
public String toString() {
return "entity.University[ universityUname=" + universityUname + " ]";
}
}
Usermaster Entity
package entity;
import java.io.Serializable;
import java.util.List;
import javax.persistence.Basic;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Lob;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.OneToOne;
import javax.persistence.Table;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
/**
*
* #author 3gth
*/
#Entity
#Table(name = "usermaster")
#XmlRootElement
#NamedQueries({
#NamedQuery(name = "Usermaster.findAll", query = "SELECT u FROM Usermaster u"),
#NamedQuery(name = "Usermaster.findByUsername", query = "SELECT u FROM Usermaster u WHERE u.username = :username"),
#NamedQuery(name = "Usermaster.findByPassword", query = "SELECT u FROM Usermaster u WHERE u.password = :password"),
#NamedQuery(name = "Usermaster.findByEmail", query = "SELECT u FROM Usermaster u WHERE u.email = :email"),
#NamedQuery(name = "Usermaster.findByProfilePic", query = "SELECT u FROM Usermaster u WHERE u.profilePic = :profilePic"),
#NamedQuery(name = "Usermaster.findByName", query = "SELECT u FROM Usermaster u WHERE u.name = :name"),
#NamedQuery(name = "Usermaster.findByContactNo", query = "SELECT u FROM Usermaster u WHERE u.contactNo = :contactNo"),
#NamedQuery(name = "Usermaster.findByStatus", query = "SELECT u FROM Usermaster u WHERE u.status = :status")})
public class Usermaster implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#Basic(optional = false)
#NotNull
#Size(min = 1, max = 50)
#Column(name = "username")
private String username;
#Basic(optional = false)
#NotNull
#Size(min = 1, max = 32)
#Column(name = "password")
private String password;
#Basic(optional = false)
#NotNull
#Lob
#Size(min = 1, max = 65535)
#Column(name = "address")
private String address;
#Basic(optional = false)
#NotNull
#Lob
#Size(min = 1, max = 65535)
#Column(name = "mapLocation")
private String mapLocation;
// #Pattern(regexp="[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*#(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?", message="Invalid email")//if the field contains email address consider using this annotation to enforce field validation
#Basic(optional = false)
#NotNull
#Size(min = 1, max = 32)
#Column(name = "email")
private String email;
#Basic(optional = false)
#NotNull
#Size(min = 1, max = 100)
#Column(name = "profilePic")
private String profilePic;
#Basic(optional = false)
#NotNull
#Size(min = 1, max = 50)
#Column(name = "name")
private String name;
#Basic(optional = false)
#NotNull
#Size(min = 1, max = 10)
#Column(name = "contactNo")
private String contactNo;
#Basic(optional = false)
#NotNull
#Column(name = "status")
private boolean status;
#OneToOne(cascade = CascadeType.ALL, mappedBy = "usermaster")
private College college;
#OneToOne(cascade = CascadeType.ALL, mappedBy = "usermaster")
private Student student;
#OneToOne(cascade = CascadeType.ALL, mappedBy = "usermaster")
private University university;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "username")
private List<Detailnotification> detailnotificationList;
#OneToOne(cascade = CascadeType.ALL, mappedBy = "usermaster")
private Faculty faculty;
#OneToMany(cascade = CascadeType.ALL, mappedBy = "usermaster")
private List<Groupmaster> groupmasterList;
public Usermaster() {
}
public Usermaster(String username) {
this.username = username;
}
public Usermaster(String username, String password, String address, String mapLocation, String email, String profilePic, String name, String contactNo, boolean status) {
this.username = username;
this.password = password;
this.address = address;
this.mapLocation = mapLocation;
this.email = email;
this.profilePic = profilePic;
this.name = name;
this.contactNo = contactNo;
this.status = status;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getMapLocation() {
return mapLocation;
}
public void setMapLocation(String mapLocation) {
this.mapLocation = mapLocation;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getProfilePic() {
return profilePic;
}
public void setProfilePic(String profilePic) {
this.profilePic = profilePic;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getContactNo() {
return contactNo;
}
public void setContactNo(String contactNo) {
this.contactNo = contactNo;
}
public boolean getStatus() {
return status;
}
public void setStatus(boolean status) {
this.status = status;
}
public College getCollege() {
return college;
}
public void setCollege(College college) {
this.college = college;
}
public Student getStudent() {
return student;
}
public void setStudent(Student student) {
this.student = student;
}
public University getUniversity() {
return university;
}
public void setUniversity(University university) {
this.university = university;
}
#XmlTransient
public List<Detailnotification> getDetailnotificationList() {
return detailnotificationList;
}
public void setDetailnotificationList(List<Detailnotification> detailnotificationList) {
this.detailnotificationList = detailnotificationList;
}
public Faculty getFaculty() {
return faculty;
}
public void setFaculty(Faculty faculty) {
this.faculty = faculty;
}
#XmlTransient
public List<Groupmaster> getGroupmasterList() {
return groupmasterList;
}
public void setGroupmasterList(List<Groupmaster> groupmasterList) {
this.groupmasterList = groupmasterList;
}
#Override
public int hashCode() {
int hash = 0;
hash += (username != null ? username.hashCode() : 0);
return hash;
}
#Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are not set
if (!(object instanceof Usermaster)) {
return false;
}
Usermaster other = (Usermaster) object;
if ((this.username == null && other.username != null) || (this.username != null && !this.username.equals(other.username))) {
return false;
}
return true;
}
#Override
public String toString() {
return "entity.Usermaster[ username=" + username + " ]";
}
}
The medthod in Statless Bean
#Override
public List<University> getAllUniversitys() {
try {
return em.createNamedQuery("University.findAll").getResultList();
} catch (Exception e) {
System.out.println("Error :- " + e.getMessage());
}
return null;
}
The Managed Bean code where it is called through Web Service
public List<University> getAllUniversity() {
try {
adminService.AdminBl adminPort = service.getAdminBlPort();
return adminPort.getAllUniversitys();
//return oAdminBlLocal.getAllUniversitys();
} catch (Exception e) {
System.out.println("Error :- " + e.getMessage());
}
return null;
}
And this is the error:
Severe: Error occured
javax.xml.ws.WebServiceException: javax.xml.bind.MarshalException
- with linked exception:
[com.sun.istack.SAXException2: A cycle is detected in the object graph. This will cause infinitely deep XML: entity.University[ universityUname=abc ] -> entity.Usermaster[ username=abc ] -> entity.University[ universityUname=abc ]]
at com.sun.xml.ws.message.jaxb.JAXBMessage.writePayloadTo(JAXBMessage.java:424)
at com.sun.xml.ws.message.AbstractMessageImpl.writeTo(AbstractMessageImpl.java:192)
at com.sun.xml.ws.api.message.saaj.SAAJFactory.readAsSOAPMessage(SAAJFactory.java:285)
at com.sun.xml.ws.api.message.saaj.SAAJFactory.read(SAAJFactory.java:163)
at com.sun.xml.ws.message.AbstractMessageImpl.readAsSOAPMessage(AbstractMessageImpl.java:249)
at org.glassfish.webservices.SOAPMessageContextImpl.getMessage(SOAPMessageContextImpl.java:90)
at org.glassfish.webservices.monitoring.MessageTraceImpl.setMessageContext(MessageTraceImpl.java:121)
at org.glassfish.webservices.monitoring.JAXWSEndpointImpl.processResponse(JAXWSEndpointImpl.java:113)
at org.glassfish.webservices.MonitoringPipe.process(MonitoringPipe.java:150)
at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:119)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:1136)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:1050)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:1019)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:877)
at com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl.process(AbstractTubeImpl.java:136)
at com.sun.enterprise.security.webservices.CommonServerSecurityPipe.processRequest(CommonServerSecurityPipe.java:209)
at com.sun.enterprise.security.webservices.CommonServerSecurityPipe.process(CommonServerSecurityPipe.java:141)
at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:119)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:1136)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:1050)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:1019)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:877)
at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:419)
at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:868)
at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:422)
at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:169)
at org.glassfish.webservices.Ejb3MessageDispatcher.handlePost(Ejb3MessageDispatcher.java:110)
at org.glassfish.webservices.Ejb3MessageDispatcher.invoke(Ejb3MessageDispatcher.java:80)
at org.glassfish.webservices.EjbWebServiceServlet.dispatchToEjbEndpoint(EjbWebServiceServlet.java:210)
at org.glassfish.webservices.EjbWebServiceServlet.service(EjbWebServiceServlet.java:153)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.glassfish.grizzly.servlet.ServletHandler.doServletService(ServletHandler.java:223)
at org.glassfish.grizzly.servlet.ServletHandler.service(ServletHandler.java:174)
at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:283)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:132)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:111)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.xml.bind.MarshalException
- with linked exception:
[com.sun.istack.SAXException2: A cycle is detected in the object graph. This will cause infinitely deep XML: entity.University[ universityUname=abc ] -> entity.Usermaster[ username=abc ] -> entity.University[ universityUname=abc ]]
at com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:276)
at com.sun.xml.bind.v2.runtime.BridgeImpl.marshal(BridgeImpl.java:94)
at com.sun.xml.bind.api.Bridge.marshal(Bridge.java:111)
at com.sun.xml.ws.db.glassfish.BridgeWrapper.marshal(BridgeWrapper.java:192)
at com.sun.xml.ws.message.jaxb.JAXBMessage.writePayloadTo(JAXBMessage.java:417)
... 51 more
Thanks in advance.

Answer 1

The error is really self-explanatory: A cycle is detected in the object graph. This will cause infinitely deep XML: entity.University[ universityUname=abc ] -> entity.Usermaster[ username=abc ] -> entity.University[ universityUname=abc ]]
Just add #XmlTransient to Usermaster.getUniversity() to break the cycle.