I have a similar issue - Eclipse 3.4.1, Jboss AS 4.2.3GA, JBoss Tool 3.0.0.CR1, Seam 2.0.2SP1 Application is deployed via Eclipse. It is an EAR project with WAR and EJB. When I manually deploy it to JBoss sever inside eclipse, the application starts and works fine. When I change a web page (such as one .xhtml page) and click Save to save the file. In a minute, server starts to publish. It also tries to publish the java classes. However, the application will not start because it does not hot deploy the application correctly. As a note, I used to use Eclipse Europa (ie, 3.3.2), and Jboss Tool 3.0.0 Alpha, and it does not deploy the Java classes. Here is the console log - 14:44:19,635 INFO [EJBContainer] STOPPED EJB: com.harasoftware.eem.session.AuthenticatorBean ejbName: AuthenticatorBean 14:44:19,639 INFO [EJBContainer] STOPPED EJB: com.harasoftware.eem.session.impl.BookingSumCalculatorBean ejbName: BookingSumCalculatorBean 14:44:19,642 INFO [EJBContainer] STOPPED EJB: com.harasoftware.eem.session.impl.CompanyCopyBean ejbName: CompanyCopyBean 14:44:19,645 INFO [EJBContainer] STOPPED EJB: com.harasoftware.eem.session.impl.NumberRangeGeneratorBean ejbName: NumberRangeGeneratorBean 14:44:19,655 INFO [EJBContainer] STOPPED EJB: com.harasoftware.eem.session.impl.UserSessionManagerBean ejbName: UserSessionManagerBean 14:44:19,663 INFO [EJBContainer] STOPPED EJB: com.harasoftware.eem.session.LoadStructureAction ejbName: LoadStructureAction 14:44:19,672 INFO [EJBContainer] STOPPED EJB: com.harasoftware.eem.session.UIRenderingManagerBean ejbName: UIRenderingManagerBean 14:44:19,673 INFO [EJBContainer] STOPPED EJB: com.harasoftware.eem.session.UnitConversion ejbName: UnitConversion 14:44:19,673 INFO [PersistenceUnitDeployment] Stopping persistence unit persistence.units:ear=eem-ear.ear,jar=eem-ejb.jar,unitName=eem 14:44:19,674 INFO [SessionFactoryImpl] closing 14:44:19,674 INFO [SessionFactoryObjectFactory] Unbinding factory from JNDI name: persistence.units:ear=eem-ear.ear,jar=eem-ejb.jar,unitName=eem 14:44:19,674 INFO [NamingHelper] JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces} 14:44:19,676 INFO [SessionFactoryObjectFactory] Unbound factory from JNDI name: persistence.units:ear=eem-ear.ear,jar=eem-ejb.jar,unitName=eem 14:44:19,676 INFO [ConnectionFactoryBindingService] Unbound ConnectionManager 'jboss.jca:service=DataSourceBinding,name=eemDatasource' from JNDI name 'java:eemDatasource' 14:44:19,776 INFO [ConnectionFactoryBindingService] Bound ConnectionManager 'jboss.jca:service=DataSourceBinding,name=eemDatasource' to JNDI name 'java:eemDatasource' 14:44:19,776 INFO [PersistenceUnitDeployment] Starting persistence unit persistence.units:ear=eem-ear.ear,jar=eem-ejb.jar,unitName=eem 14:44:23,897 INFO [Ejb3Configuration] found EJB3 Entity bean: com.harasoftware.eem.entity.Accrual .... 14:44:25,599 INFO [Configuration] Reading mappings from resource : META-INF/orm.xml 14:44:25,619 INFO [Ejb3Configuration] [PersistenceUnit: eem] META-INF/orm.xml found ... 14:44:34,351 INFO [EJBContainer] STARTED EJB: com.harasoftware.eem.session.UIRenderingManagerBean ejbName: UIRenderingManagerBean 14:44:34,359 INFO [EJBContainer] STARTED EJB: com.harasoftware.eem.session.UnitConversion ejbName: UnitConversion and then it hangs .. If I undeploy the application and redeploy iy again, it start to work again. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4202588#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...