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http://jira.codehaus.org/browse/MHIBERNATE-83?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=161325#action_161325
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David J. M. Karlsen edited comment on MHIBERNATE-83 at 1/17/09 5:21 AM:
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I think this is a duplicate of MHIBERNATE-86
was (Author: [email protected]):
I think this is a duplicate of MHIBERNATE-83
> ClassNotFoundException with hbm2java
> ------------------------------------
>
> Key: MHIBERNATE-83
> URL: http://jira.codehaus.org/browse/MHIBERNATE-83
> Project: Maven 2.x Hibernate Plugin
> Issue Type: Bug
> Components: hbm2java
> Affects Versions: 2.2
> Environment: C:\Projects\java\trunk\harnesshibernate>mvn -v
> Maven version: 2.0.9
> Java version: 1.6.0_03
> OS name: "windows xp" version: "5.1" arch: "x86" Family: "windows"
> Reporter: md
> Assignee: David J. M. Karlsen
> Priority: Critical
> Fix For: 2.2
>
> Original Estimate: 0 minutes
> Remaining Estimate: 0 minutes
>
> I have hand created a .hbm.xml file and I am attempting to generate the java
> bean class using the hbm2java goal. I keep getting a ClassNotFoundException
> no matter what I try. Neither the online documentation or web searches has
> turned up anything useful. The class it is missing is the one I am trying to
> generate, so of course it's not going to find it. The question is why is it
> looking for it in the first place?
> Here is the plugin tag from the pom.xml:
> <plugin>
> <groupId>org.codehaus.mojo</groupId>
> <artifactId>hibernate3-maven-plugin</artifactId>
> <version>2.2-SNAPSHOT</version>
> <executions>
> <execution>
> <id>hbm2java</id>
> <goals>
> <goal>hbm2java</goal>
> </goals>
> <configuration>
> <components>
> <component>
> <name>hbm2java</name>
> <outputDirectory>src/main/java/</outputDirectory>
> <implementation>configuration</implementation>
> </component>
> </components>
> </configuration>
> </execution>
> </executions>
> </plugin>
> Here is the hbm.xml file:
> <hibernate-mapping>
> <class name="net.test.hh.data.Track" table="TRACK">
> <meta attribute="class-description">
> Represents a single playable track in the music database.
> </meta>
>
> <id name="id" column="track_id">
> <meta attribute="scope-set">protected</meta>
> <generator class="native" ></generator>
> </id>
>
> <property name="title" type="string" not-null="true"></property>
>
> <property name="filePath" type="string" not-null="true"></property>
> <property name="playTime" type="time">
> <meta attribute="field-description">Playing Time</meta>
> </property>
> <property name="added" type="date">
> <meta attribute="field-description">When the track was last
> created</meta>
> </property>
> <property name="volume" type="short" not-null="true">
> <meta attribute="field-description">How loud to play the track</meta>
> </property>
> </class>
> </hibernate-mapping>
> here is the hibernate.cfg.xml:
> <?xml version='1.0' encoding='utf-8'?>
> <!DOCTYPE hibernate-configuration PUBLIC
> "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
> "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd";>
> <hibernate-configuration>
> <session-factory>
> <!-- Database connection settings -->
> <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
> <property name="connection.url">jdbc:hsqldb:data/music</property>
> <property name="connection.username">sa</property>
> <property name="connection.password"></property>
> <!-- JDBC connection pool (use the built-in) -->
> <property name="connection.pool_size">1</property>
> <property name="connection.shutdown">true</property>
> <!-- SQL dialect -->
> <property name="dialect">org.hibernate.dialect.HSQLDialect</property>
> <!-- Enable Hibernate's automatic session context management -->
> <property name="current_session_context_class">thread</property>
> <!-- Disable the second-level cache -->
> <property
> name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
> <!-- Echo all executed SQL to stdout -->
> <property name="show_sql">true</property>
> <!-- Drop and re-create the database schema on startup -->
> <property name="hbm2ddl.auto">create</property>
> <mapping resource="net/test/hh/data/Track.hbm.xml"/>
> </session-factory>
> </hibernate-configuration>
> Here's the exception I get:
> Caused by: org.hibernate.MappingException: class net.test.hh.data.Track not
> found while looking for property: id
> at
> org.hibernate.util.ReflectHelper.reflectedPropertyClass(ReflectHelper.java:74)
> at
> org.hibernate.mapping.SimpleValue.setTypeUsingReflection(SimpleValue.java:276)
> at org.hibernate.cfg.HbmBinder.bindSimpleId(HbmBinder.java:401)
> at
> org.hibernate.cfg.HbmBinder.bindRootPersistentClassCommonValues(HbmBinder.java:334)
> at org.hibernate.cfg.HbmBinder.bindRootClass(HbmBinder.java:273)
> at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:144)
> at org.hibernate.cfg.Configuration.add(Configuration.java:669)
> at
> org.hibernate.cfg.Configuration.addInputStream(Configuration.java:504)
> at org.hibernate.cfg.Configuration.addResource(Configuration.java:566)
> ... 30 more
> Caused by: java.lang.ClassNotFoundException: net.test.hh.data.Track
> at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> at
> org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
> at
> org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
> at
> org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:274)
> at
> org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:169)
> at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:100)
> at
> org.hibernate.util.ReflectHelper.reflectedPropertyClass(ReflectHelper.java:70)
> ... 38 more
> This should have been an easy thing to do. Instead I have lost many hours
> behind this issue.
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