annoying NullPointerException

powerise · **Joined:** Sat Oct 08, 2005 7:23 am **Posts:** 1

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Hibernate version:2.0

Mapping documents:

Code between sessionFactory.openSession() and session.close():

Full stack trace of any exception that occurs:

Name and version of the database you are using:oracle 9i

The generated SQL (show_sql=true): no sql is generated

Debug level Hibernate log excerpt:INFO

when i use hibernate 2.0 in tomcat,net.sf.hibernate.impl.SessionImpl.preFlushEntities() method always give me a NullPointerException,I debug it and find it is caused by code "return new ArrayList(map.entrySet());" in method --net.sf.hibernate.util.IdentityMap.entries(Map). when i iterator the map and put all members in ArrayList Object myserlf,everything is ok,why?

max · **Posted:** Sat Oct 08, 2005 7:41 am

use 2.1 or 3.1