javax/persistence/Entity not present?

bdudney · **Posted:** Wed Jul 27, 2005 5:49 pm

Hi All,

I'm having trouble with getting a schema generated.

I'm using

I am getting the following error message from ant

Quote:

Finding class javax.persistence.Inheritance
Loaded from /Users/bdudney/DevTools/hibernate-annotations-3.1beta3/lib/ejb3-persistence.jar javax/persistence/Inheritance.class
Class javax.persistence.Inheritance loaded from ant loader (parentFirst)
Finding class javax.persistence.Entity

BUILD FAILED
/Users/Shared/Applications/Eclipse-3.1/workspace/StockTracker/build.xml:232: java.lang.TypeNotPresentException: Type javax.persistence.Entity not present

Now what I'm confused about here is that ant finds javax.persistence.Inheritance from the same jar that holds javax.persistence.Entity.

Any ideas what I'm doing wrong here?

Thanks!

-bd-

bdudney · **Posted:** Wed Jul 27, 2005 6:12 pm

This is the whole output from ant when running without debug.

Quote:

build.schema:
[hibernatetool] Executing Hibernate Tool with a Hibernate Annotation/EJB3 Configuration
[hibernatetool] 1. task: hbm2ddl (Generates database schema)
[hibernatetool] Jul 27, 2005 4:12:48 PM org.hibernate.cfg.Environment <clinit>
[hibernatetool] INFO: Hibernate 3.1 beta 1
[hibernatetool] Jul 27, 2005 4:12:48 PM org.hibernate.cfg.Environment <clinit>
[hibernatetool] INFO: hibernate.properties not found
[hibernatetool] Jul 27, 2005 4:12:48 PM org.hibernate.cfg.Environment <clinit>
[hibernatetool] INFO: using CGLIB reflection optimizer
[hibernatetool] Jul 27, 2005 4:12:48 PM org.hibernate.cfg.Environment <clinit>
[hibernatetool] INFO: using JDK 1.4 java.sql.Timestamp handling
[hibernatetool] Jul 27, 2005 4:12:48 PM org.hibernate.cfg.Configuration configure
[hibernatetool] INFO: configuring from file: hibernate.cfg.xml
[hibernatetool] Jul 27, 2005 4:12:48 PM org.hibernate.cfg.Configuration doConfigure
[hibernatetool] INFO: Configured SessionFactory: null

BUILD FAILED
/Users/Shared/Applications/Eclipse-3.1/workspace/StockTracker/build.xml:232: java.lang.TypeNotPresentException: Type javax.persistence.Entity not present

[/b]

emmanuel · **Posted:** Wed Jul 27, 2005 7:31 pm

you mean, you have the ejb3-persistence.jar in your classpath?

bdudney · **Posted:** Wed Jul 27, 2005 9:34 pm

Thanks for the reply.

Yes I do have ejb3-persistence.jar in the taskdef classpath. It is not in the hibernatetool classpath.

If I remove hibernate.annotations.classpath from the taskdef classpath it complains that javax.persistence.Column is not found.

Does anyone have a clean ant 1.6.5 + hibernate stuff environment that you could do a quick check on to see if this works for you?

Relevant build.xml segment.

Code:

  <taskdef name="hibernatetool"
           classname="org.hibernate.tool.ant.HibernateToolTask">
    <classpath>
      <path refid="hibernate.annotations.classpath"/>
      <path refid="hibernate.tools.classpath"/>
      <path refid="hibernate.classpath"/>
    </classpath>
  </taskdef>
  <target name="build.schema"
          depends="build.hibernate.domain.jar"
          description="create the schema and populate it with test data">
    <hibernatetool destdir="${hibernate.build.destdir}">
      <classpath>
        <pathelement path="${build.destdir}/${hibernate.jar.name}.jar"/>
        <pathelement path="${build.destdir}/${domain.jar.name}.jar"/>
      </classpath>
      <annotationconfiguration configurationFile="${hibernate.build.destdir}/hibernate.cfg.xml"/>
      <hbm2doc/>
      <!-- build the db from the configuration -->
      <hbm2ddl destdir="blorg.sql"/>
    </hibernatetool>
  </target>

max · **Posted:** Thu Jul 28, 2005 2:02 am

known issue with the a4 relase of the tools - fixed in cvs (release upcoming)

bdudney · **Posted:** Thu Jul 28, 2005 7:47 am

Thanks,

Hit the nail on the head.

Is there an ETA on the next release?

TTFN,

-bd-

bdudney · **Posted:** Thu Jul 28, 2005 11:23 am

more class loader problems?

I have an enum in my model and the build.schema target responds that the type is unknown.

Code:

org.hibernate.HibernateException: Enum class not found
        at org.hibernate.type.EnumType.setParameterValues(EnumType.java:154)

The code from EnumType.java

Code:

   public void setParameterValues(Properties parameters) {
      String enumClassName = parameters.getProperty(ENUM);
        try {
            enumClass = Class.forName(enumClassName).asSubclass(Enum.class);
        }
        catch (ClassNotFoundException exception) {
            throw new HibernateException("Enum class not found", exception);
        }
...

Should the look up of the enumClassName be hitting a different class loader?

Thanks,

-bd-

bdudney · **Posted:** Thu Jul 28, 2005 11:44 am

Not sure this is how you would fix it but the following change to the class lookup seems to have worked for me;

Code:

            enumClass = Class.forName(enumClassName, true, Thread.currentThread().getContextClassLoader()).asSubclass(Enum.class);

Thanks again,

-bd-

lwpro2 · **Joined:** Sun Sep 12, 2010 9:14 am **Posts:** 2

there is one jar hibernate-jpa sth, add tat should work.

yogarajkhanal · **Joined:** Fri Jan 02, 2009 2:42 pm **Posts:** 2

http://www.codeissue.com/issues/i84e022 ... nce-entity

Please review my post here. I have faced the similar situation and solved it using the description in the following post.
Thanks,
Yogi