Value type and 500 Internal Server Error (SOAP)

Question

Hi,
I'm try to generate, by jdeveloper10g, an Oracle J2EE WebService, on an Oracle Application Server 10g.
One method that i want to publish as web service should return a class, DBVarWS, created by me. This class has a public default constructor, every private fields has its get and set methods, and so on. Jdeveloper creates and deploys the WS without problem. The other methods of the ws work, but this one generate an Error 500:
java.lang.StackOverflowError
     at org.apache.soap.util.xml.XMLJavaMappingRegistry.queryElementType_(XMLJavaMappingRegistry.java:220)
     at org.apache.soap.encoding.SOAPMappingRegistry.queryElementType_(SOAPMappingRegistry.java:593)
     at org.apache.soap.util.xml.XMLJavaMappingRegistry.queryElementType(XMLJavaMappingRegistry.java:235)
     at org.apache.soap.encoding.soapenc.SoapEncUtils.generateStructureHeader(SoapEncUtils.java:130)
     at org.apache.soap.encoding.soapenc.SoapEncUtils.generateStructureHeader(SoapEncUtils.java:117)
     at org.apache.soap.encoding.soapenc.BeanSerializer.marshall(BeanSerializer.java:88)
     at org.apache.soap.encoding.soapenc.ParameterSerializer.marshall(ParameterSerializer.java:108)
     at org.apache.soap.util.xml.XMLJavaMappingRegistry.marshall(XMLJavaMappingRegistry.java:292)
     at org.apache.soap.encoding.soapenc.BeanSerializer.marshall(BeanSerializer.java:133)
     at org.apache.soap.encoding.soapenc.ParameterSerializer.marshall(ParameterSerializer.java:108)
     at org.apache.soap.util.xml.XMLJavaMappingRegistry.marshall(XMLJavaMappingRegistry.java:292)
     at org.apache.soap.encoding.soapenc.BeanSerializer.marshall(BeanSerializer.java:133)
     at org.apache.soap.encoding.soapenc.ParameterSerializer.marshall(ParameterSerializer.java:108)
     at org.apache.soap.util.xml.XMLJavaMappingRegistry.marshall(XMLJavaMappingRegistry.java:292)
     at org.apache.soap.encoding.soapenc.BeanSerializer.marshall(BeanSerializer.java:133)
     ...and fade out, the same lines for 12 pages..
Does anybody see where is my mistake??
Below i copy the source code of the class that (i suppose) generates the problem..
thanks a lot
Mauro
DBVarWS.java
package ims.gui.dbConnectionWStoPublish;
* <code>DBVar</code> contains the data you need to identify and retreive a
* monitorable variable from the database of IMS.
* When you log in the IMS, the application retreive a list of monitorable variable,
* and store a DBVar object for every monitorable var.
* DBVar does not contain the value of the variable: it is used to make the request
* to the database to retreive that value(s).
public class DBVarWS
private String name;
private String session;
private int ta;
private int instance;
private String type;
private String[] token;//"where" "time_ins" ">" etc
//the var is been selected by the user?
private boolean selected;
* Creates a DBVar with the specified name
* @param _name Name of the variable
public DBVarWS(String _name)
name=_name;
selected=false;
token=new String[20];
for(int i=0;i<20;i++) token=null;
public DBVarWS()
token=new String[20];
* Creates a DBVar with the specified name,session,ta,instance and type
* @param _name Name of the variable
* @param _session Session of the varible
* @param _ta Target Address of the variable
* @param _type Datatype of the the variable value: integer, double, etc
public DBVarWS(String name,String session, int ta, int instance, String _type)
name=_name;
session=_session;
ta=_ta;
instance=_instance;
type=_type;
selected=false;
token=new String[20];
for(int i=0;i<20;i++) token[i]=null;
* Return this DBVar object
public DBVarWS getDBVar()
return this;
* Return the DBVar name
* @webmethod
public String getName()
return name;
* Return the DBVar session
* @webmethod
public String getSession()
return session;
* Return the DBVar target address
* @webmethod
public int getTa()
return ta;
* Return the DBVar instance
* @webmethod
public int getInstance()
return instance;
* Return the DBVar value type
* @webmethod
public String getType()
return type;
* Return the DBVar selected flag
* @webmethod
public boolean getSelected()
return selected;
* @webmethod
public String[] getToken()
return token;
* Set the name of the DBVar
* @webmethod
public void setName(String _name)
name=_name;
System.out.println("name = "+_name);
* Set the name of the DBVar
* @webmethod
public void setSession(String _s) { session=_s; }
* Set the targeta address of the DBVar
* @webmethod
public void setTa(int _ta) { ta=_ta; }
* Set the instance of the DBVar
* @webmethod
public void setInstance(int _inst) { instance=_inst; }
* Set the type of the DBVar value
* @webmethod
public void setType(String _type) { type=_type; }
* Set the selected flag of the DBVar.
* Selected is true when the DBVar has been selected by the user
* to be retreived from the database
* @webmethod
public void setSelected(boolean _c) { selected=_c; }
* @webmethod
public void setToken(String[] _token)
token=_token;

Answer 1

Ok the problem is solved, it was about webutil, I had a problem of path and concerning jacob.jar in the configuration files default.env of midtier
If this can help someone
Christophe