Re: [Resin-interest] 2 errors in simple project

2008-03-19 Thread Riccardo Cohen
I tried to use the eclipse environment to run this little sample with 
the help of Steffen Busch, but I continue to have the error:

com.caucho.amber.AmberRuntimeException: 'adlhessian.Ejbuser' with 
classloader EnvironmentClassLoader[web-app:http://localhost:8000] is an 
illegal instance class


Riccardo Cohen wrote:
 hi again
 I'm really blocked with my developments, can somebody help me with this 
 strange problem ? I can send the source it is very small and the error 
 is systematic.
 Thanks a lot.
 
 Riccardo Cohen wrote:
 ok thanks for the url info.


 Now for the amber problem : I cleaned all including work directory, 
 after first run, found a .class for all my ejbs (in classes folder). In 
 work/pre-enhance folder I have the following files :

 Ejbuser__ResinExt.class
 Ejbuser__ResinExt.java
 Ejbuser.class

 and nothing in work/ejb

 I dont' know if the files are valid, but the applications does not work, 
 and continue to try to recompile if I request it.
 I tried to add load-on-startup/ for the servlet that uses that ejb, 
 but it did not change. I also tried to put the whole application in 
 webapps/ROOT in resin folder, but no success.

 The error is systematic.

 would you like me to send you the full app folder ?

 Scott Ferguson wrote:
 This is much more complicated.  Amber does bytecode enhancement at the  
 classloader level, so there are complicated timing issues.   
 Specifically, if something loads the Ejbuser class before Amber has  
 configured it, you'll get the non-enhanced class.

 There might also be some cases where an error in generating the  
 enhanced class might not get logged properly.  Does the log show any  
 kind of error?  Also, is there a valid file in WEB-INF/work/pre-enhance?

 -- Scott

 

-- 
Très cordialement,

Riccardo Cohen
---
Articque
http://www.articque.com
149 av Général de Gaulle
37230 Fondettes - France
tel : 02-47-49-90-49
fax : 02-47-49-91-49


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Re: [Resin-interest] 2 errors in simple project

2008-03-14 Thread Scott Ferguson

On Mar 14, 2008, at 9:00 AM, Riccardo Cohen wrote:

 Hi
 I'm using resin 3.1.5 and the latest mysql jdbc driver.
 I try to build a minimal sample from scratch to be sure to  
 understand everything with entity ejbs.

 I found 2 problems I cannot understand :

 1) database configuration

 This is my conf :
  database jndi-name=jdbc/adlhessian
driver
  typecom.mysql.jdbc.Driver/type
  urljdbc:mysql://localhost/adlhessian/url
  userhessian/user
  passwordhessian/password
/driver
prepared-statement-cache-size8/prepared-statement-cache-size
max-connections20/max-connections
max-idle-time30s/max-idle-time
spytrue/spy
  /database

 I get the error in finer log :

 com.caucho.config.ConfigException: 'url' is an unknown attribute of  
 'com.mysql.jdbc.Driver'
 and the same for user and password. But it seems to work anyway !!  
 why this error while the docs seems to tell it is correct...

The logging has been changed to finest.  It's only being logged to  
avoid totally swallowing the error.

Some drivers have a setUrl method, which uses the value of the url  
directly.  So Resin is trying to find and set that method.  Since the  
getConnection also has a URL argument, it's optional.

 2) ejb configuration

 I have one single entity ejb :


 But I continue to have the error =

 com.caucho.amber.AmberRuntimeException: 'adlejb.Ejbuser' with  
 classloader EnvironmentClassLoader[web-app:http://localhost:8000] is  
 an illegal instance class

This is much more complicated.  Amber does bytecode enhancement at the  
classloader level, so there are complicated timing issues.   
Specifically, if something loads the Ejbuser class before Amber has  
configured it, you'll get the non-enhanced class.

There might also be some cases where an error in generating the  
enhanced class might not get logged properly.  Does the log show any  
kind of error?  Also, is there a valid file in WEB-INF/work/pre-enhance?

-- Scott



 What does it mean ? I found no error, and tried to have a look at  
 mailinglist  archive with no success. I looked at the samples, but  
 found nothing really different...

 The crazy about this is that I built this simple app from another  
 simple app configured exactly the same manner, but the other does  
 not make any amber error ! I tried to rename everything several  
 times, but nothing seems to remove this error. I had the same  
 problem sometimes with resin 3.0 and in 2006 Rodrigo Westrupp  
 answered that I should work with resin 3.1.




 Thanks for any information (files attached)

 -- 
 Très cordialement,

 Riccardo Cohen
 ---
 Articque
 http://www.articque.com
 149 av Général de Gaulle
 37230 Fondettes - France
 tel : 02-47-49-90-49
 fax : 02-47-49-91-49
 package adlejb;

 import javax.persistence.Basic;
 import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
 import javax.persistence.Id;
 import javax.persistence.Table;

 @Entity
 @Table(name=adluser)
 public class Ejbuser
 {
  @Id @Column(name=adlid) @GeneratedValue int id;
  @Basic @Column(name=adlfirstname) String firstname;
  @Basic @Column(name=adlname) String name;
  public int getId()
  {
return id;
  }
  public void setId(int id)
  {
this.id = id;
  }
  public String getFirstname()
  {
return firstname;
  }
  public void setFirstname(String firstname)
  {
this.firstname = firstname;
  }
  public String getName()
  {
return name;
  }
  public void setName(String name)
  {
this.name = name;
  }
 }
 persistence xmlns=http://java.sun.com/xml/ns/persistence;  
 version=1.0
  persistence-unit name=Adlhessian
classadlejb.Ejbuser/class
exclude-unlisted-classes /
  /persistence-unit
 /persistence
 web-app xmlns=http://caucho.com/ns/resin;
  database jndi-name=jdbc/adlhessian
driver
  typecom.mysql.jdbc.Driver/type
  urljdbc:mysql://localhost/adlhessian/url
  init-param autoReconnect=true/
  init-param noDatetimeStringSync=true/
  init-param jdbcCompliantTruncation=false/
  userhessian/user
  passwordhessian/password
/driver
prepared-statement-cache-size8/prepared-statement-cache-size
max-connections20/max-connections
max-idle-time30s/max-idle-time
spytrue/spy
  /database
  ejb-server data-source=jdbc/adlhessian create-database- 
 schema=false/
  servlet servlet-name=adlservice servlet- 
 class=adlhessian.Adlservice/
  servlet-mapping url-pattern=/adlservice/* servlet- 
 name=adlservice/
 /web-app
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