Hello Thiago, thanks for your answer.
The idea was to only use tapestry-ioc which is supposed to be usable as an isolated component with no dependency to tapestry-core. tapestry-hibernate, however, depends on tapestry-core, according to https://mvnrepository.com/artifact/org.apache.tapestry/tapestry-hibernate/5.4.3 That's not necessarily a no-go for general usage, but "taints" my original concept. For my use case it would be perfectly fine to only use one Hibernate session throughout the project (no threading, etc.). The project itself does some batch processing (no web context, etc.). Should I ever need multiple Sessions, that's where @ServiceId could step in (still single threaded). Still, all of these considerations don't deal whith the original question why creating this Session service is failing so hard. At least good to know that my code should run in general. Thanks for that. Now, where is the missing part? Is it Tapestry-Ioc related or Hibernate related? If the code should run, but fails, then, maybe there is a bug/limitation somewhere which might be worth to get fixed. Best regards Thomas Am 09.05.2017 um 00:57 schrieb Thiago H. de Paula Figueiredo: > Hello! > > Why don't you just use tapestry-hibernate to let it deal with creating and > handling Hibernate sessions? > https://tapestry.apache.org/using-tapestry-with-hibernate.html > > Also, I believe your code may not be incorrect, but it's not good. Unless > you want only one Hibernate session for the whole application and you never > have threads in parallel using it, your code will be fail hard. Hibernate > sessions are not thread-safe and Tapestry-IoC services are singletons by > default. Your code doesn't tell T-IoC the service is per-thread. > > Also, why are you using @ServiceId? Tapestry-IoC services are usually > defined by their type, not by their id, and service ids are generally only > used when you have more than one service with the same type. > > > On Mon, May 8, 2017 at 2:56 AM, Thomas Mayer <thomas.ma...@student.kit.edu> > wrote: > >> Hi, this report/question is for >> >> tapestry-ioc 5.4.3 >> hibernate-core 5.2.10.Final >> openjdk version "1.8.0_121" >> OpenJDK Runtime Environment (build 1.8.0_121-8u121-b13-0ubuntu1. >> 16.04.2-b13) >> OpenJDK 64-Bit Server VM (build 25.121-b13, mixed mode) >> >> I'm trying to have a ServiceId for a hibernate Session: >> >> @ServiceId("HibernateSession") >> public static Session buildHibernateSession( >> ObjectLocator objectLocator >> ) { >> return new Configuration() >> .configure("hibernate.cfg.xml") >> .buildSessionFactory() >> .openSession(); >> } >> >> As soon as the HibernateSession is invoked by Tapestry-IOC, I get an >> error: java.lang.ClassFormatError: Duplicate method name&signature in >> class file $Session_350f95bde0b5 >> >> Please note thate I can serve the SessionFactory perfectly fine with >> Tapestry-IoC (just by omitting the "openSession()"). >> >> Is there something wrong in the code above? >> Can someone reproduce it? >> Is this a bug in Tapestry-IoC? >> Is this a bug/limitation in Hibernate? >> >> >> >> 2017-05-08 07:31:02 DEBUG HibernateSession:261 - Creating proxy for >> service HibernateSession >> Exception in thread "main" java.lang.ClassFormatError: Duplicate method >> name&signature in class file $Session_350f95bde0b5 >> at java.lang.ClassLoader.defineClass1(Native Method) >> at java.lang.ClassLoader.defineClass(ClassLoader.java:763) >> at java.lang.ClassLoader.defineClass(ClassLoader.java:642) >> at >> org.apache.tapestry5.internal.plastic.PlasticClassLoader. >> defineClassWithBytecode(PlasticClassLoader.java:52) >> at >> org.apache.tapestry5.internal.plastic.PlasticClassPool. >> realize(PlasticClassPool.java:160) >> at >> org.apache.tapestry5.internal.plastic.PlasticClassPool. >> realizeTransformedClass(PlasticClassPool.java:139) >> at >> org.apache.tapestry5.internal.plastic.PlasticClassImpl.createInstantiator( >> PlasticClassImpl.java:648) >> at >> org.apache.tapestry5.plastic.PlasticManager.createProxy( >> PlasticManager.java:253) >> at >> org.apache.tapestry5.ioc.internal.services.PlasticProxyFactoryImpl. >> createProxy(PlasticProxyFactoryImpl.java:68) >> at >> org.apache.tapestry5.ioc.internal.ModuleImpl.createProxyInstance( >> ModuleImpl.java:484) >> at >> org.apache.tapestry5.ioc.internal.ModuleImpl.createProxy(ModuleImpl.java: >> 478) >> at >> org.apache.tapestry5.ioc.internal.ModuleImpl.access$ >> 900(ModuleImpl.java:40) >> at >> org.apache.tapestry5.ioc.internal.ModuleImpl$4.invoke(ModuleImpl.java:322) >> at >> org.apache.tapestry5.ioc.internal.OperationTrackerImpl. >> invoke(OperationTrackerImpl.java:82) >> at >> org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke( >> PerThreadOperationTracker.java:72) >> at >> org.apache.tapestry5.ioc.internal.RegistryImpl.invoke( >> RegistryImpl.java:1260) >> at org.apache.tapestry5.ioc.internal.ModuleImpl.create( >> ModuleImpl.java:344) >> at >> org.apache.tapestry5.ioc.internal.ModuleImpl.access$ >> 100(ModuleImpl.java:40) >> at >> org.apache.tapestry5.ioc.internal.ModuleImpl$1.invoke(ModuleImpl.java:198) >> at >> org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withWrite( >> ConcurrentBarrier.java:139) >> at >> org.apache.tapestry5.ioc.internal.ModuleImpl$2.invoke(ModuleImpl.java:215) >> at >> org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead( >> ConcurrentBarrier.java:83) >> at >> org.apache.tapestry5.ioc.internal.ModuleImpl.findOrCreate(ModuleImpl.java: >> 221) >> at >> org.apache.tapestry5.ioc.internal.ModuleImpl.getService(ModuleImpl.java: >> 112) >> at >> org.apache.tapestry5.ioc.internal.RegistryImpl. >> getService(RegistryImpl.java:497) >> at >> org.apache.tapestry5.ioc.internal.ObjectLocatorImpl. >> getService(ObjectLocatorImpl.java:43) >> at >> org.apache.tapestry5.ioc.internal.util.InternalUtils$ >> 22.run(InternalUtils.java:1429) >> at >> org.apache.tapestry5.ioc.internal.OperationTrackerImpl. >> run(OperationTrackerImpl.java:56) >> at >> org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.run( >> PerThreadOperationTracker.java:60) >> at >> org.apache.tapestry5.ioc.internal.RegistryImpl.run(RegistryImpl.java:1254) >> at >> org.apache.tapestry5.ioc.internal.util.InternalUtils. >> extendPlanForInjectedFields(InternalUtils.java:1419) >> at >> org.apache.tapestry5.ioc.internal.util.InternalUtils. >> access$200(InternalUtils.java:50) >> at >> org.apache.tapestry5.ioc.internal.util.InternalUtils$ >> 20.invoke(InternalUtils.java:1380) >> at >> org.apache.tapestry5.ioc.internal.util.InternalUtils$ >> 20.invoke(InternalUtils.java:1366) >> at >> org.apache.tapestry5.ioc.internal.OperationTrackerImpl. >> invoke(OperationTrackerImpl.java:82) >> at >> org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke( >> PerThreadOperationTracker.java:72) >> at >> org.apache.tapestry5.ioc.internal.RegistryImpl.invoke( >> RegistryImpl.java:1260) >> at >> org.apache.tapestry5.ioc.internal.util.InternalUtils. >> createConstructorConstructionPlan(InternalUtils.java:1363) >> at >> org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.getPlan( >> ConstructorServiceCreator.java:52) >> at >> org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.createObject( >> ConstructorServiceCreator.java:62) >> at >> org.apache.tapestry5.ioc.internal.ReloadableServiceImplementatio >> nObjectCreator.createInstance(ReloadableServiceImplementatio >> nObjectCreator.java:54) >> at >> org.apache.tapestry5.ioc.internal.AbstractReloadableObjectCreato >> r$1.invoke(AbstractReloadableObjectCreator.java:136) >> at >> org.apache.tapestry5.ioc.internal.OperationTrackerImpl. >> invoke(OperationTrackerImpl.java:82) >> 2017-05-08 07:31:02 ERROR Registry:208 - Duplicate method name&signature >> in class file $Session_350f95bde0b5 >> at >> org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke( >> PerThreadOperationTracker.java:72) >> 2017-05-08 07:31:02 ERROR Registry:209 - Operations trace: >> at >> org.apache.tapestry5.ioc.internal.RegistryImpl.invoke( >> RegistryImpl.java:1260) >> 2017-05-08 07:31:02 ERROR Registry:218 - [ 1] Reloading class >> dbla.dbla.controller.TraceImportController. >> 2017-05-08 07:31:02 ERROR Registry:218 - [ 2] Creating plan to >> instantiate dbla.dbla.controller.TraceImportController via public >> dbla.dbla.controller.TraceImportController() >> 2017-05-08 07:31:02 ERROR Registry:218 - [ 3] Calculating possible >> injection value for field >> dbla.dbla.controller.TraceImportController.hibernateSession >> (org.hibernate.Session) >> 2017-05-08 07:31:02 ERROR Registry:218 - [ 4] Creating proxy for service >> HibernateSession >> at >> org.apache.tapestry5.ioc.internal.AbstractReloadableObjectCreato >> r.createInstance(AbstractReloadableObjectCreator.java:129) >> at >> org.apache.tapestry5.ioc.internal.AbstractReloadableObjectCreato >> r.createObject(AbstractReloadableObjectCreator.java:121) >> at $ControllerInterface_350f95bde0af.delegate(Unknown Source) >> at $ControllerInterface_350f95bde0af.execute(Unknown Source) >> at $ControllerInterface_350f95bde0ad.execute(Unknown Source) >> at dbla.dbla.DbLogAnonymizer.main(DbLogAnonymizer.java:19) >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org >> For additional commands, e-mail: users-h...@tapestry.apache.org >> >> > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
