[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-5329) NoClassDefFoundError when using Hibernate 3.5 with J2SE 1.4 because of a wrong catch block

NoClassDefFoundError when using Hibernate 3.5 with J2SE 1.4 because of a wrong catch block ------------------------------------------------------------------------------------------ Key: HHH-5329 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5329 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.5.0-Final Environment: Hibernate 3.5, Java SE 1.4 or J2EE 1.3 Reporter: Francesco Poli Assignee: Emmanuel Bernard Priority: Blocker Fix For: 3.5.x, 3.6 In org.hibernate.impl.SessionFactoryImpl is done this check when looking for concurrent classes during the creation of the SessionFactory: Statistics concurrentStatistics = null; try { Class concurrentStatsClass = ReflectHelper.classForName("org.hibernate.stat.ConcurrentStatisticsImpl"); Constructor constructor = concurrentStatsClass.getConstructor(new Class[]{SessionFactoryImplementor.class}); concurrentStatistics = (Statistics) constructor.newInstance(new Object[]{this}); log.trace("JDK 1.5 concurrent classes present"); } catch (Exception noJava5) { log.trace("JDK 1.5 concurrent classes missing"); } But what is thrown is a NoClassDefFoundError, which is not an Exception. As a consequence, the catch block won't work and the error is propagated to the upper levels of the application. I suggest to modify the catch arguments to match the correct type of the thrown object. Thank you. Bye Francesco Poli