An internal error occurred during: "Fetching children" when Hibernate 3.6 or 4.0 is used ---------------------------------------------------------------------------------------- Key: JBIDE-17555 URL: https://issues.jboss.org/browse/JBIDE-17555 Project: Tools (JBoss Tools) Issue Type: Bug Components: hibernate Affects Versions: 4.2.0.Beta2 Environment: JBDS 8.0.0.Beta2a, GNU/Linux, OpenJDK 1.7 Reporter: Jiri Peterka Priority: Blocker Labels: respin-b Fix For: 4.2.0.Beta2 An internal error occurred during: "Fetching children of hibernate-test". org/hibernate/cfg/Configuration It's more general case of this one https://issues.jboss.org/browse/JBIDE-17553 java.lang.LinkageError: org/hibernate/cfg/Configuration at org.jboss.tools.hibernate4_0.ConfigurationFactory.buildConfiguration(ConfigurationFactory.java:170) at org.jboss.tools.hibernate4_0.ConfigurationFactory.createConfiguration(ConfigurationFactory.java:98) at org.jboss.tools.hibernate4_0.HibernateExtension4_0$4.execute(HibernateExtension4_0.java:144) at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:63) at org.jboss.tools.hibernate4_0.HibernateExtension4_0.execute(HibernateExtension4_0.java:211) at org.jboss.tools.hibernate4_0.HibernateExtension4_0.buildWith(HibernateExtension4_0.java:141) at org.jboss.tools.hibernate4_0.HibernateExtension4_0.build(HibernateExtension4_0.java:105) at org.hibernate.console.ConsoleConfiguration.build(ConsoleConfiguration.java:188) at org.hibernate.eclipse.console.workbench.ConsoleConfigurationWorkbenchAdapter.getChildren(ConsoleConfigurationWorkbenchAdapter.java:53) at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.getChildren(BasicWorkbenchAdapter.java:100) at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.fetchDeferredChildren(BasicWorkbenchAdapter.java:106) at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:238) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)