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Steve Ebersole commented on HHH-2867:
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1) Can't speak for seam for certain but most JBoss environments disable
Hibernate's cglib usage unilaterally.
2) My experience and my local tests have not shown this to be the case, on many points. I
find cglib reflection optimization as having negligible performance improvements over
straight jdk5 reflection, exactly the same as javassist.
HIbernate reflection optimization with javassist MUCH slower than in
previous versions with cglib
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Key: HHH-2867
URL:
http://opensource.atlassian.com/projects/hibernate/browse/HHH-2867
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.2.3
Reporter: MG
Hibernate reflection optimization with javassist MUCH slower than in previous versions
with cglib,
and there is no way to set it to use cglib anymore
I'm setting
hibernate.bytecode.provider=cglib
in hibernate.properties
but it is still using javassist
[java] 10:42:00,675 INFO [Version] Hibernate Annotations 3.2.1.GA
[java] 10:42:00,722 INFO [Environment] Hibernate 3.2.3
[java] 10:42:00,737 INFO [Environment] loaded properties from resource
hibernate.properties: {hibernate.jdbc.use_streams_for_binary=fal
se, hibernate.bytecode.use_reflection_optimizer=true, hibernate.bytecode.provider=cglib}
[java] 10:42:00,737 INFO [Environment] using bytecode reflection optimizer
[java] 10:42:00,737 INFO [Environment] Bytecode provider name : javassist
[java] 10:42:00,753 INFO [Environment] using JDK 1.4 java.sql.Timestamp handling
Please, check sample code in
http://jira.jboss.com/jira/browse/JBSEAM-1977
which compares cglib with javassist optimizations
cglib beats JDK 5 reflection almost 10 times
javassist performs even slower than JDK 5 reflection
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