[JBoss-dev] [ jboss-Bugs-840885 ] UnifiedClassLoader3 is not threadsafe
Bugs item #840885, was opened at 2003-11-12 18:37 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=376685aid=840885group_id=22866 Category: JBossServer Group: v3.2 Status: Open Resolution: None Priority: 5 Submitted By: Adrian Price (adrianprice) Assigned to: Nobody/Anonymous (nobody) Summary: UnifiedClassLoader3 is not threadsafe Initial Comment: I'm getting an intermittent j.l.ClassCastException on the dynamic proxy returned by JNDI lookup of an EJB local home. A single copy of the EJBLocalHome subinterface in question is deployed in an ejb.jar inside an .ear with an application-scoped ClassLoader. No other copies of the class file are deployed anywhere else. Application level debug output (attached) shows clearly that the same application-scoped UnifiedClassLoader3 instance associated with the ear file has loaded the same bytecode twice, into two distinct copies of the same class, with the result that the dynamic proxy implements a different copy of the home interface than that which the calling code sees. Hence the ClassCastException. Both copies of the class share the same ClassLoader instance. This is JBoss-3.2.2, and I've seen the same problem on both Linux and Windows XP. -- You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=376685aid=840885group_id=22866 --- This SF.Net email sponsored by: ApacheCon 2003, 16-19 November in Las Vegas. Learn firsthand the latest developments in Apache, PHP, Perl, XML, Java, MySQL, WebDAV, and more! http://www.apachecon.com/ ___ JBoss-Development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development
[JBoss-dev] [ jboss-Bugs-840885 ] UnifiedClassLoader3 is not threadsafe
Bugs item #840885, was opened at 2003-11-12 18:37 Message generated for change (Comment added) made by adrianprice You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=376685aid=840885group_id=22866 Category: JBossServer Group: v3.2 Status: Open Resolution: None Priority: 5 Submitted By: Adrian Price (adrianprice) Assigned to: Nobody/Anonymous (nobody) Summary: UnifiedClassLoader3 is not threadsafe Initial Comment: I'm getting an intermittent j.l.ClassCastException on the dynamic proxy returned by JNDI lookup of an EJB local home. A single copy of the EJBLocalHome subinterface in question is deployed in an ejb.jar inside an .ear with an application-scoped ClassLoader. No other copies of the class file are deployed anywhere else. Application level debug output (attached) shows clearly that the same application-scoped UnifiedClassLoader3 instance associated with the ear file has loaded the same bytecode twice, into two distinct copies of the same class, with the result that the dynamic proxy implements a different copy of the home interface than that which the calling code sees. Hence the ClassCastException. Both copies of the class share the same ClassLoader instance. This is JBoss-3.2.2, and I've seen the same problem on both Linux and Windows XP. -- Comment By: Adrian Price (adrianprice) Date: 2003-11-12 18:49 Message: Logged In: YES user_id=580837 Detailed diagnostics and commentary attached. -- You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=376685aid=840885group_id=22866 --- This SF.Net email sponsored by: ApacheCon 2003, 16-19 November in Las Vegas. Learn firsthand the latest developments in Apache, PHP, Perl, XML, Java, MySQL, WebDAV, and more! http://www.apachecon.com/ ___ JBoss-Development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development
[JBoss-dev] [ jboss-Bugs-840885 ] UnifiedClassLoader3 is not threadsafe
Bugs item #840885, was opened at 2003-11-12 10:37 Message generated for change (Comment added) made by starksm You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=376685aid=840885group_id=22866 Category: JBossServer Group: v3.2 Status: Open Resolution: None Priority: 5 Submitted By: Adrian Price (adrianprice) Assigned to: Scott M Stark (starksm) Summary: UnifiedClassLoader3 is not threadsafe Initial Comment: I'm getting an intermittent j.l.ClassCastException on the dynamic proxy returned by JNDI lookup of an EJB local home. A single copy of the EJBLocalHome subinterface in question is deployed in an ejb.jar inside an .ear with an application-scoped ClassLoader. No other copies of the class file are deployed anywhere else. Application level debug output (attached) shows clearly that the same application-scoped UnifiedClassLoader3 instance associated with the ear file has loaded the same bytecode twice, into two distinct copies of the same class, with the result that the dynamic proxy implements a different copy of the home interface than that which the calling code sees. Hence the ClassCastException. Both copies of the class share the same ClassLoader instance. This is JBoss-3.2.2, and I've seen the same problem on both Linux and Windows XP. -- Comment By: Scott M Stark (starksm) Date: 2003-11-12 10:50 Message: Logged In: YES user_id=175228 There is no debug output attached, make sure you check the 'Check to Upload and Attach a File:' box below. -- Comment By: Adrian Price (adrianprice) Date: 2003-11-12 10:49 Message: Logged In: YES user_id=580837 Detailed diagnostics and commentary attached. -- You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=376685aid=840885group_id=22866 --- This SF.Net email sponsored by: ApacheCon 2003, 16-19 November in Las Vegas. Learn firsthand the latest developments in Apache, PHP, Perl, XML, Java, MySQL, WebDAV, and more! http://www.apachecon.com/ ___ JBoss-Development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development
[JBoss-dev] [ jboss-Bugs-840885 ] UnifiedClassLoader3 is not threadsafe
Bugs item #840885, was opened at 2003-11-12 10:37
Message generated for change (Comment added) made by starksm
You can respond by visiting:
https://sourceforge.net/tracker/?func=detailatid=376685aid=840885group_id=22866
Category: JBossServer
Group: v3.2
Status: Open
Resolution: None
Priority: 5
Submitted By: Adrian Price (adrianprice)
Assigned to: Scott M Stark (starksm)
Summary: UnifiedClassLoader3 is not threadsafe
Initial Comment:
I'm getting an intermittent j.l.ClassCastException on the
dynamic proxy returned by JNDI lookup of an EJB local
home. A single copy of the EJBLocalHome subinterface
in question is deployed in an ejb.jar inside an .ear with
an application-scoped ClassLoader. No other copies of
the class file are deployed anywhere else.
Application level debug output (attached) shows clearly
that the same application-scoped UnifiedClassLoader3
instance associated with the ear file has loaded the
same bytecode twice, into two distinct copies of the
same class, with the result that the dynamic proxy
implements a different copy of the home interface than
that which the calling code sees. Hence the
ClassCastException. Both copies of the class share the
same ClassLoader instance.
This is JBoss-3.2.2, and I've seen the same problem on
both Linux and Windows XP.
--
Comment By: Scott M Stark (starksm)
Date: 2003-11-12 11:08
Message:
Logged In: YES
user_id=175228
It would be useful to see the trace level log output of this
scenario. Add the following config to the conf/log4j.xml file
to create a separate ucl.log:
appender name=UCL class=org.apache.log4j.FileAppender
param name=File
value=${jboss.server.home.dir}/log/ucl.log/
param name=Append value=false/
layout class=org.apache.log4j.PatternLayout
param name=ConversionPattern
value=[%r,%c{1},%t] %m%n/
/layout
/appender
category name=org.jboss.mx.loading additivity=false
priority value=TRACE class=org.jboss.logging.XLevel/
appender-ref ref=UCL/
/category
Zip that up and mail it to [EMAIL PROTECTED] as its
unlikely to fit the file size attachment restrictions of
sourceforge.
--
Comment By: Scott M Stark (starksm)
Date: 2003-11-12 10:50
Message:
Logged In: YES
user_id=175228
There is no debug output attached, make sure you check the
'Check to Upload and Attach a File:' box below.
--
Comment By: Adrian Price (adrianprice)
Date: 2003-11-12 10:49
Message:
Logged In: YES
user_id=580837
Detailed diagnostics and commentary attached.
--
You can respond by visiting:
https://sourceforge.net/tracker/?func=detailatid=376685aid=840885group_id=22866
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