[jboss-user] [JBoss Tools] - HibernateException: Dialect class not found in HBM2DDL ant task

Saemmy - [https://community.jboss.org/people/saemmy2011] created the discussion "HibernateException: Dialect class not found in HBM2DDL ant task" To view the discussion, visit: https://community.jboss.org/message/763934#763934 -------------------------------------------------------------- Hi, I am using <hbm2ddl> ant task for exporting DDL schema. My ant script worked fine for Hibernate 3.6 and Hibernate Tools 3.x. After upgading to Hibernate 4 and Hibernate Tools 4 I get the following exception: [hibernatetool] 2012-10-09 15:54:32,327 INFO  [Version.<clinit>(15)] : Hibernate Tools 4.0.0 [hibernatetool] 2012-10-09 15:54:32,390 WARN  [ConnectionProviderInitiator.initiateService(143)] : HHH000181: No appropriate connection provider encountered, assuming application will be supplying connections [hibernatetool] An exception occurred while running exporter #2:hbm2ddl (Generates database schema) [hibernatetool] To get the full stack trace run ant with -verbose [hibernatetool] org.hibernate.HibernateException: Dialect class not found: com.mycompany.myproduct.integration.dao.hibernate.Oracle10nDialect [hibernatetool] org.hibernate.service.classloading.spi.ClassLoadingException: Unable to load class [com.mycompany.myproduct.integration.dao.hibernate.Oracle10nDialect] [hibernatetool] java.lang.ClassNotFoundException: Could not load requested class : com.mycompany.myproduct.integration.dao.hibernate.Oracle10nDialect [hibernatetool] A class were not found in the classpath of the Ant task. [hibernatetool] Ensure that the classpath contains the classes needed for Hibernate and your code are in the classpath. BUILD FAILED C:\Projekte\MyProduct\workspace-sts-trunk\MyProductWeb-dev\build.xml:143: org.hibernate.HibernateException: Dialect class not found: com.mycompany.myproduct.integration.dao.hibernate.Oracle10nDialect     at org.hibernate.tool.ant.HibernateToolTask.reportException(HibernateToolTask.java:226)     at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:189)     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)     at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)     at java.lang.reflect.Method.invoke(Method.java:597)     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)     at org.apache.tools.ant.Task.perform(Task.java:348)     at org.apache.tools.ant.Target.execute(Target.java:392)     at org.apache.tools.ant.Target.performTasks(Target.java:413)     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)     at org.apache.tools.ant.Project.executeTarget(Project.java:1368)     at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)     at org.eclipse.ant.internal.launching.remote.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)     at org.apache.tools.ant.Project.executeTargets(Project.java:1251)     at org.eclipse.ant.internal.launching.remote.InternalAntRunner.run(InternalAntRunner.java:424)     at org.eclipse.ant.internal.launching.remote.InternalAntRunner.main(InternalAntRunner.java:138) Caused by: org.hibernate.HibernateException: Dialect class not found: com.mycompany.myproduct.integration.dao.hibernate.Oracle10nDialect     at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.constructDialect(DialectFactoryImpl.java:76)     at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:64)     at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:174)     at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)     at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)     at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)     at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:113)     at org.hibernate.tool.hbm2x.Hbm2DDLExporter.doStart(Hbm2DDLExporter.java:164)     at org.hibernate.tool.hbm2x.AbstractExporter.start(AbstractExporter.java:95)     at org.hibernate.tool.ant.ExporterTask.execute(ExporterTask.java:40)     at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:186)     ... 15 more Caused by: org.hibernate.service.classloading.spi.ClassLoadingException: Unable to load class [com.mycompany.myproduct.integration.dao.hibernate.Oracle10nDialect]     at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:141)     at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.constructDialect(DialectFactoryImpl.java:73)     ... 25 more Caused by: java.lang.ClassNotFoundException: Could not load requested class : com.mycompany.myproduct.integration.dao.hibernate.Oracle10nDialect     at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl$1.findClass(ClassLoaderServiceImpl.java:99)     at java.lang.ClassLoader.loadClass(ClassLoader.java:306)     at java.lang.ClassLoader.loadClass(ClassLoader.java:247)     at java.lang.Class.forName0(Native Method)     at java.lang.Class.forName(Class.java:247)     at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:138)     ... 26 more *Here is the part of my ant script:* <target name="schemaexport" depends="clean, compile">         <taskdef name="hibernatetool" classname="org.hibernate.tool.ant.HibernateToolTask" classpathref="build.classpath" />         <mkdir dir="${target.dir}/sql"/>         <hibernatetool destdir="${target.dir}/sql">             <classpath>                 <path location="${build.dir}"/>             </classpath>             <configuration configurationfile="${build.dir}/hibernate.cfg.xml"/>             <hbm2ddl                 export="false"                 drop="true"                 outputfilename="DB-create.sql"                 delimiter=";"                 format="true"             />         </hibernatetool>     </target> The build.dir includes all class files, including the Oracle 10 dialect. Did something change in the configuration of hbm2dll in Hibernate Tools 4? Or is this a bug in Hibernate Tools 4? -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/763934#763934] Start a new discussion in JBoss Tools at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]