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Re: Getting "association error" when reverse-engineering an existing schema with Hibernate tools
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created by <a href="https://community.jboss.org/people/johnqcitizen">John Citizen</a> in <i>JBoss Tools</i> - <a href="https://community.jboss.org/message/801796#801796">View the full discussion</a>
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<div class="jive-rendered-content"><p>So I decided to remove maven from the problem and wrote an ant build script that uses hibernate tools directly. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>But I still get the same error:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">[hibernatetool] An exception occurred while running exporter #2:hbm2java (Generates a set of .java files)</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">[hibernatetool] To get the full stack trace run ant with -verbose</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">[hibernatetool] org.hibernate.MappingException: <strong>An association from the table FOO refers to an unmapped class: com.whatever.domain.Bar</strong></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">BUILD FAILED</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">build.xml:23: org.hibernate.MappingException: An association from the table FOO refers to an unmapped class: com.whatever.domain.Bar</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          at org.hibernate.cfg.Configuration.secondPassCompileForeignKeys(Configuration.java:1285)</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          at org.hibernate.cfg.JDBCMetaDataConfiguration.secondPassCompileForeignKeys(JDBCMetaDataConfiguration.java:33)</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1203)</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1148)</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          at org.hibernate.tool.ant.ConfigurationTask.getConfiguration(ConfigurationTask.java:56)</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          at org.hibernate.tool.ant.HibernateToolTask.getConfiguration(HibernateToolTask.java:302)</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          at org.hibernate.tool.ant.HibernateToolTask.getProperties(HibernateToolTask.java:318)</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          at org.hibernate.tool.ant.ExporterTask.configureExporter(ExporterTask.java:94)</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          at org.hibernate.tool.ant.Hbm2JavaExporterTask.configureExporter(Hbm2JavaExporterTask.java:34)</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          at org.hibernate.tool.ant.ExporterTask.execute(ExporterTask.java:39)</span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:186)</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Here's my ant <strong>build.xml</strong> file:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;"><project basedir="." default="reveng"></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">  <path id="toolslib"></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/org/hibernate/hibernate-tools/3.2.3.GA/<strong>hibernate-tools-3.2.3.GA.jar</strong>" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/org/hibernate/hibernate-core/3.3.1.GA/<strong>hibernate-core-3.3.1.GA.jar</strong>" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/org/hibernate/hibernate-annotations/3.4.0.GA/hibernate-annotations-3.4.0.GA.jar" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/freemarker/freemarker/2.3.8/freemarker-2.3.8.jar" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/com/oracle/ojdbc/11.1.0.6.0/<strong>ojdbc-11.1.0.6.0.jar</strong>" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/commons-logging/commons-logging/1.1.1/commons-logging-1.1.1.jar" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/dom4j/dom4j/1.6.1/dom4j-1.6.1.jar" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/org/slf4j/slf4j-api/1.5.6/slf4j-api-1.5.6.jar" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/org/slf4j/slf4j-log4j12/1.5.6/slf4j-log4j12-1.5.6.jar" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/log4j/log4j/1.2.16/log4j-1.2.16.jar" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/cglib/cglib/2.2.2/cglib-2.2.2.jar" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/asm/asm/3.3.1/asm-3.3.1.jar" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <path location="/r/commons-collections/commons-collections/3.1/commons-collections-3.1.jar" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">  </path></span></p><p style="padding-left: 30px;">  </p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">  <taskdef name="hibernatetool" classname="org.hibernate.tool.ant.HibernateToolTask" classpathref="toolslib" /></span></p><p style="padding-left: 60px;">  </p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">  <target name="reveng" description="Reverse-engineer a DB schema"></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    <hibernatetool destdir="${build.dir}/generated"></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier; font-size: 10pt;">      <jdbcconfiguration propertyfile="<strong>hibernate.properties</strong>" packagename="com.whatever.domain" revengfile="<strong>reveng.xml</strong>" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">      <hbm2java jdk5="true" ejb3="true" /></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">    </hibernatetool></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">  </target></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier; font-size: 10pt;"></project></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>It is accessing the same <strong>hibernate.properties</strong> file and <strong>reveng.xml</strong> file specified in the comment above.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Hope this helps.</p></div>
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