Version
2.1.6

Mapping

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 2.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping>
<class name="com.dti.tests.Location" table="TRACK">
<id name="id" type="int" column="ID">
<meta attribute="scope-set">protected</meta>
<generator class="native"/>
</id>
<property name="description" type="string" not-null="true"/>
<property name="active" type="int" not-null="true"/>
</class>
</hibernate-mapping>


Exception trace

INFO: Generating 3 in generated
java.lang.NullPointerException
at net.sf.hibernate.tool.hbm2java.BasicRenderer.isPropertySet(BasicRende
rer.java:611)
at net.sf.hibernate.tool.hbm2java.BasicRenderer.generateConcreteEmptyCla
sses(BasicRenderer.java:332)
at net.sf.hibernate.tool.hbm2java.BasicRenderer.render(BasicRenderer.jav
a:59)
at net.sf.hibernate.tool.hbm2java.Generator.write(Generator.java:138)
at net.sf.hibernate.tool.hbm2java.Generator.writeRecur(Generator.java:11
5)
at net.sf.hibernate.tool.hbm2java.Generator.generate(Generator.java:104)

at net.sf.hibernate.tool.hbm2java.CodeGenerator.main(CodeGenerator.java:
125)


Hello!

I'm just trying generate classes from mapping. Stuck completely.
Tryed to do that with ant and batch file. Result is the same.

I'm REALLY new to that stuff, so probably i'm mising something obvious.
My log4 is not configured. There is no hibernate config file.
Situation seems to be simple, but nothing work for me!

It doesn't wanna work on sample files either!

Please help!

WBR
Mike

I found a possible bug in 2.1.6 yesterday night. Generation does not work if the property generate-concrete-empty-classes is not set explicitly.

Just use a system config.xml file like this one to start the generation (if you use command line, --config=yourpath/config.xml or if you use ant config="yourpath/config.xml"

<codegen>
<generate renderer="net.sf.hibernate.tool.hbm2java.BasicRenderer">
<param name="generate-concrete-empty-classes">false</param>
</generate>
</codegen>

Good luck.

Daniel

Sounds sensible.

I also thought something like that, but checked it with value="true", because i'm not sure about parameter meating.

I haven't any IDE on comp. and do not wanna spend a lot of time on debugging. So, after quick source rewiew, i guessed that config file must be present, or something like that. Presence of the file doesn't fix the problem, because property was set to true.

Will try it with false.

Now it work! Thanks a lot.