Hi Romain, I have fixed it, looks like an issue with openejb. addTransformer() in PersistenceUnitInfoImpl class is being called only in my windows environment, not in linux environment. Here is the call trace in my windows environment.
at org.apache.openejb.persistence.PersistenceUnitInfoImpl.addTransformer(PersistenceUnitInfoImpl.java:337) at org.apache.openjpa.persistence.PersistenceProviderImpl.createContainerEntityManagerFactory(PersistenceProviderImpl.java:170) at org.apache.openjpa.persistence.PersistenceProviderImpl.createContainerEntityManagerFactory(PersistenceProviderImpl.java:63) at org.apache.openejb.assembler.classic.EntityManagerFactoryCallable.call(EntityManagerFactoryCallable.java:64) at org.apache.openejb.assembler.classic.ReloadableEntityManagerFactory.createDelegate(ReloadableEntityManagerFactory.java:122) at org.apache.openejb.assembler.classic.ReloadableEntityManagerFactory.<init>(ReloadableEntityManagerFactory.java:108) at org.apache.openejb.assembler.classic.PersistenceBuilder.createEntityManagerFactory(PersistenceBuilder.java:157) at org.apache.openejb.assembler.classic.Assembler.createApplication(Assembler.java:864) at org.apache.openejb.assembler.classic.Assembler.createApplication(Assembler.java:717) at org.apache.openejb.assembler.classic.Assembler.buildContainerSystem(Assembler.java:595) at org.apache.openejb.assembler.classic.Assembler.build(Assembler.java:483) at org.apache.openejb.OpenEJB$Instance.<init>(OpenEJB.java:150) at org.apache.openejb.OpenEJB.init(OpenEJB.java:307) at org.apache.tomee.catalina.TomcatLoader.initialize(TomcatLoader.java:247) When I see why it is not being called in linux, here is the piece of code causing issue in ReloadableEntityManagerFactory constructor. if (!callable.getUnitInfo().isLazilyInitialized()) { createDelegate(); } isLazilyinitialized() is false in Windows, true in Linux. It is being determined using "info.webappName != null" in PersistenceBuilder. As of now, I removed if condition, it is working fine in Linux now. Is this bug, or can you suggest some workaround for this? Thanks & Regards, Srinivas Atluri -- View this message in context: http://tomee-openejb.979440.n4.nabble.com/CMP2-enitity-get-is-making-update-query-in-Linux-environment-tp4681136p4681186.html Sent from the TomEE Users mailing list archive at Nabble.com.