I have thousands pojos and hbm created by myeclipse reverse engineering.
I got this exception:
java.lang.OutOfMemoryError: Java heap space
226585 [main] WARN org.hibernate.tuple.PojoEntityTuplizer - could not create proxy factory for:com.dsdatafashion.persistence.hibernate.ChiCas
org.hibernate.HibernateException: CGLIB Enhancement failed: com.dsdatafashion.persistence.hibernate.ChiCas
at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:132)
at org.hibernate.proxy.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:41)
at org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:161)
at org.hibernate.tuple.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:131)
at org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55)
at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:257)
at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:412)
at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:108)
at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:216)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1176)
at com.dsdatafashion.persistence.hibernate.HibernateSessionFactory.rebuildSessionFactory(HibernateSessionFactory.java:60)
at com.dsdatafashion.persistence.hibernate.HibernateSessionFactory.getSession(HibernateSessionFactory.java:43)
at com.dsdatafashion.persistence.hibernate.BaseHibernateDAO.getSession(BaseHibernateDAO.java:16)
at com.dsdatafashion.persistence.hibernate.FodDAO.save(FodDAO.java:23)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.dsdatafashion.common.test.TestDaoReflection.executeService(TestDaoReflection.java:41)
at com.dsdatafashion.common.test.TestDaoReflection.main(TestDaoReflection.java:84)
Caused by: java.lang.OutOfMemoryError: Java heap space

Of course is heap problem but how can I work around it?

increase your heap space

you can give more memory to the vm by adding -Xmx512m (for instance) to the vm startup parameters.

but if i run outside my IDE u think it should work?