I m run my java class through java command:-
C:\ybb\trunk\YBB\YBBmaint\SMSCampaign>java -cp ..\lib\activation.jar;..\lib\antlr.jar;..\lib\asm.jar;..\lib\backport-util-concurr
ent-2.1.zip;..\lib\backport-util-concurrent.jar;..\lib\cglib-2.1.jar;..\lib\commons-collections-3.1.jar;..\lib\commons-beanutils-c
ore.jar;..\lib\commons-beanutils.jar;..\lib\commons-codec-1.3.jar;..\lib\commons-collections-3.;1.jar;..\lib\commons-dbcp-1.2.1.ja
r;..\lib\commons-digester-1.7.jar;..\lib\commons-discovery-0.2.jar;..\lib\commons-fileupload-1.0.jar;..\lib\commons-httpclient-3.0
.1.jar;..\lib\commons-io-1.2.jar;..\lib\commons-lang-2.1.jar;..\lib\commons-logging.jar;..\lib\commons-net-1.4.1.jar;..\lib\common
s-pool-1.2.jar;..\lib\commons-validator.jar;..\lib\dom4j-1.6.jar;..\lib\ehcache-1.1.jar;..\lib\geronimo-spec-j2ee-connector-1.5-rc
4.jar;..\lib\geronimo-spec-jta-1.0.1B-rc3.jar;..\lib\hibernate3.jar;..\lib\hotsax.jar;..\lib\jakarta-oro.jar;..\lib\javamail_1.4.2
.jar;..\lib\jax-qname.jar;..\lib\jaxb-api.jar;..\lib\jaxb-impl.jar;..\lib\jaxb-libs.jar;..\lib\jaxb-xjc.jar;..\lib\jcommon-1.0.0.j
ar;..\lib\jfreechart-1.0.1.jar;..\lib\jstl.jar;..\lib\jug-2.0.0.jar;..\lib\log4j-1.2.13.jar;..\lib\lsimplecaptcha-20050925.jar;..\
lib\mule-1.3-rc4.jar;..\lib\mule-launcher.jar;..\lib\mysql-connector-java-3.1.10-bin.jar;..\lib\namespace.jar;..\lib\nekohtml-0.9.
5.jar;..\lib\PDFBox-0.7.2-log4j.jar;..\lib\planlocator.jar;..\lib\relaxngDatatype.jar;..\lib\servlet.jar;..\lib\spring.jar;..\lib\
standard.jar;..\lib\struts.jar;..\lib\xalan.jar;..\lib\xerces-2.6.2.jar;..\lib\xml-apis.jar;..\lib\xsdlib.jar;..\lib\xstream-1.1.3
.jar;..\lib\YBBserver.jar;.\tbsexports\SMSRunner.jar; com...classname

then lazyinitialization exception problem occours:-


(LazyInitializationException.java:19) ERROR org.hibernate.LazyInitializationException - failed to lazily initialize a collection o
f role: com.trilogy.mobilechurn.data.user.User.usernumbers, no session or session was closed
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.trilogy.mobilechurn.data.user.Use
r.usernumbers, no session or session was closed
at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.jav
a:358)
at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistent
Collection.java:350)
at org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:97)
at org.hibernate.collection.PersistentSet.size(PersistentSet.java:114)
at com.trilogy.mobilechurn.dataservices.user.UserDataServiceImpl.getUsernumber(UserDataServiceImpl.java:167)
at com.trilogy.mobilechurn.dataservices.user.UserDataServiceImpl.getUsernumber(UserDataServiceImpl.java:149)
at com.trilogy.ybb.services.message.sms.SMSService.getUsernumber(SMSService.java:473)
at com.trilogy.ybb.services.message.sms.SMSService.send(SMSService.java:345)
at com.trilogy.ybb.services.message.sms.SMSService.send(SMSService.java:323)
at com.trilogy.mobilechurn.SMSCampaign.SMSRunner.runSMS(SMSRunner.java:149)

Check the lazy loading options for User-->usernumbers property. Make sure lazy="false" is mentioned.

Thanks

Correct answer, however it costs more. My performance testing was 40-50% slower than using lazy="true". Do you have any other solution using lazy="true" to increase performance?

Thanks in advance.

Correct answer, however it costs more. My performance testing with lazy="false" was 40-50% slower than using lazy="true". Do you have any other solution using lazy="true" to increase performance?

Thanks in advance.

In a typical web application you can implement the Open Session In View model quite easily. This, as the name suggests, keeps a session open for the duration of a request, including the rendering of the view.

In the web application I am developing, I use Spring's OpenSessionInViewFilter, configured in the application context. I've never had to worry about lazy loading exceptions since.

However, from your stack trace I can see that you are probably not running a web app. There may be some off-the-shelf implementations of the Open Session In View model that can help you, otherwise I suggest looking at the source code for OpenSessionInViewFilter.java to try and understand how the idea works, then develop your own solution.