0002588: Servlet loads class before amber

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Category

Severity

Reproducibility

Date Submitted

Last Update

0002588

[Resin]

minor

always

04-09-08 10:43

04-09-08 18:52

Reporter

emil

View Status

public

Assigned To

ferg

Priority

normal

Resolution

fixed

Platform

Status

closed

Projection

none

OS Version

ETA

none

Fixed in Version

3.1.6

Product Version

3.1.6

Product Build

Summary

0002588: Servlet loads class before amber

Description

(Reported by Riccardo Cohen)

A servlet that uses a persisted class is loading the class before amber can. This has not been replicated on Linux, but Mac OS X with Java 1.5.0_13 seems to exhibit the problem. See the attached war file.

Steps To Reproduce

Additional Information

Additional info by Riccardo:

I found something interesting : if you comment the code where Ejbuser is
used in Adlservice (see file joined) then the illegual instance class error
disappear, even if in the last function there is a List<Ejbuser> that does
not seem to be a problem.
It seems that it happens only when an object has to be used in my code...

package adlhessian;

import java.util.ArrayList;
import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.transaction.UserTransaction;
import javax.webbeans.In;

import com.caucho.hessian.server.HessianServlet;

public class Adlservice extends HessianServlet
{
  @PersistenceContext(name="adlhessian") private EntityManager m_manager;
  @In private UserTransaction m_ut;

  //@TransactionAttribute
  public boolean setusername(int userid,String newname)
  {
    boolean success=false;
    try
    {
      m_ut.begin(); // must be called before find() or createQuery()
      /*
      Ejbuser user=m_manager.find(Ejbuser.class,userid);
      if (user!=null)
      {
        user.setName(newname);
        success=true;
      }
      */
    }
    catch(Exception ex)
      {ex.printStackTrace();}
    finally
    {
      try{m_ut.commit();}catch(Exception ex){ex.printStackTrace();}
    }
    return(success);
  }

  public Ejbuser getuser(int userid)
  {
    Ejbuser ret=null;
    try
    {
      /*
      Ejbuser user=(Ejbuser)m_manager.find(Ejbuser.class,userid);
      if (user!=null)
        ret=user;
        */
    }
    catch(Exception ex)
      {ex.printStackTrace();}
    return ret;
  }

  public boolean adduser(Ejbuser newuser)
  {
    boolean success=false;
    try
    {
      m_ut.begin(); // must be called before find() or createQuery()
      /*
      Ejbuser user=new Ejbuser();
      user=newuser;
      m_manager.persist(user);
      */
    }
    catch(Exception ex)
      {ex.printStackTrace();}
    finally
    {
      try{m_ut.commit();}catch(Exception ex){ex.printStackTrace();}
    }
    return(success);
  }

  public List<String> getallusers()
  {
    List<String> ret=new ArrayList<String>();
    try
    {
      javax.persistence.Query hqr=m_manager.createQuery("select h from Ejbuser h");
      List<Ejbuser> list=(List<Ejbuser>)hqr.getResultList();
      int idx;
      for (idx=0;idx<list.size();idx++)
        ret.add(list.get(idx).getName());
    }
    catch(Exception ex)
      {ex.printStackTrace();}
    return(ret);
  }

}

Attached Files

amber.war [^] (677,869 bytes) 04-09-08 10:43

Relationships

Notes
(0002954) ferg 04-09-08 18:52	jpa/0032

Issue History
Date Modified	Username	Field	Change
04-09-08 10:43	emil	New Issue
04-09-08 10:43	emil	File Added: amber.war
04-09-08 18:52	ferg	Note Added: 0002954
04-09-08 18:52	ferg	Assigned To	=> ferg
04-09-08 18:52	ferg	Status	new => closed
04-09-08 18:52	ferg	Resolution	open => fixed
04-09-08 18:52	ferg	Fixed in Version	=> 3.1.6

Mantis 1.0.0rc3[^]

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