New HOWL version in Geronimo

["Udovichenko, Nellya" <ne...@intel.com>]

Hello!  

 

Now version of HOWL in Geronimo is 0.1.11. What do you think about its
replacing with new one 1.0.0?

 

Some problems are fixed in new HOWL version. One of them is of
importance for correct Geronimo startup: 

 

class org.objectweb.howl.log.BlockLogBuffer from howl-logger-0.1.11.jar
throws 

org.objectweb.howl.log.InvalidLogBufferException over check-up of log
files availability

using HOWL classes when we start Geronimo by command: java -jar
bin/server.jar. 

Because it checks files' validity if they exist. One of verified
parameters is the file content control sum. 

One value of this parameter is read from file header and another is
calculated by function java.nio.ByteBuffer.hashCode().  

 

If Geronimo is launched on one JDK at first and then - on another, class
BlockLogBuffer can throw 

exception because algorithms of function hashCode() can be different and
values of the checksum don't 

equal accordingly. 

 

This is bug in HOWL classes

http://forge.objectweb.org/tracker/?group_id=92&atid=100092&func=detail&
aid=304291
<http://forge.objectweb.org/tracker/?group_id=92&atid=100092&func=detail
&aid=304291> 

 

In new HOWL version 1.0.0 it is fixed by introduction of new boolean
parameter. When the parameter 

equals 'false', control sum is calculated using hashCode() function.
Otherwise the calculation is performed

using ADLER-32 algorithm. If the jar with new HOWL version is added to
maven repository and Geronimo 

sources are patched by using new parameter the exception won't appear. 

 

This is not a critical bug; however, I think it is better to use HOWL
1.0.0 for correct Geronimo

launching on various JDK. 

 

Any ideas? 

 

Thanks, Nellya Udovichenko,

Intel Middleware Products Division

 

Re: New HOWL version in Geronimo

[Jason Dillon <ja...@planet57.com>]

0.1.11 to 1.0.0 appears like a major jump... What else has changed?

--jason


-----Original Message-----
From: "Udovichenko, Nellya" <ne...@intel.com>
Date: Wed, 3 May 2006 14:14:53 
To:<de...@geronimo.apache.org>
Subject: New HOWL version in Geronimo

Hello!  
 
 
 
Now version of HOWL in Geronimo is 0.1.11. What do you think about its replacing with new one 1.0.0?
 
 
 
Some problems are fixed in new HOWL version. One of them is of importance for correct Geronimo startup: 
 
 
 
class org.objectweb.howl.log.BlockLogBuffer from howl-logger-0.1.11.jar throws 
 
org.objectweb.howl.log.InvalidLogBufferException over check-up of log files availability
 
using HOWL classes when we start Geronimo by command: java –jar bin/server.jar. 
 
Because it checks files' validity if they exist. One of verified parameters is the file content control sum. 
 
One value of this parameter is read from file header and another is calculated by function java.nio.ByteBuffer.hashCode().  
 
 
 
If Geronimo is launched on one JDK at first and then - on another, class BlockLogBuffer can throw 
 
exception because algorithms of function hashCode() can be different and values of the checksum don't 
 
equal accordingly. 
 
 
 
This is bug in HOWL classes
 
http://forge.objectweb.org/tracker/?group_id=92&atid=100092&func=detail&aid=304291
 
 
 
In new HOWL version 1.0.0 it is fixed by introduction of new boolean parameter. When the parameter 
 
equals 'false', control sum is calculated using hashCode() function. Otherwise the calculation is performed
 
using ADLER-32 algorithm. If the jar with new HOWL version is added to maven repository and Geronimo 
 
sources are patched by using new parameter the exception won’t appear. 
 
 
 
This is not a critical bug; however, I think it is better to use HOWL 1.0.0 for correct Geronimo
 
launching on various JDK. 
 
 
 
Any ideas? 
 
 
 
Thanks, Nellya Udovichenko,
 
Intel Middleware Products Division