seam 1.3.0.alpha seam-gen error

[lschaffer]

Hello
I have trouble with latest seam-gen 'generate-entities' (jboss-seam-CVS.20070603 )


first ehcache is missing from the lib (i have copied it)
but I have got this exception

java.lang.IllegalAccessError: tried to access field org.hibernate.cfg.Collection
SecondPass.collection from class org.hibernate.cfg.JDBCBinder$JDBCCollectionSecondPass

any idea?

[lowecg2004]

I had that earlier. I have no solution at this time, just a work around.

I had two entities in my seam-gen.reveng.xml that had previously generated fine. The first time I got the error all I had to do was delete the entities and run seam-gen again. I was not successful with subsequent retries, where I ended up having to delete the entities and run seam-gen once per table:

<hibernate-reverse-engineering>
 <schema-selection match-schema="DCSCORE"/>
 <table-filter match-name="SYS_GROUPS"/>
</hibernate-reverse-engineering>

I would like to know a better solution to this...

Cheers,

Chris.

[lschaffer]

finally I have found the solution
*CollectionSecondPass*.class have two versions
one in lib\hibernate-all.jar another in seam-gen\lib\hibarnate.jar
I have renamed (temp) lib\hibernate-all.jar to hibernate-all.jar.x then it has worked fine

[awhitford]

Are you sure that did the trick? I see the same hibernate-all.jar in project\lib as seam-gen\lib. Renaming the one in project\lib doesn't change a thing for me...

I recall I had this problem in the past and I had gotten around it by removing tables and constraints...

[awhitford]

I traced the problem to having a foreign key constraint. If I drop the constraint, seam-gen works fine...

(But I want that constraint, and I'm expecting seam-gen will generate code with convert-entity...)

[atao]

lschaffer is right. It's aN issue with the version of hibernat in seam-csv/lib/hibernate-all.jar.

Even if you specify an other archive file for hibernate, seam always uses seam-csv/lib/hibernate-all.jar as there is

java -cp "%JAVA_HOME%\lib\tools.jar;%DIRNAME%lib\ant-launcher.jar" -Dant.home="%DIRNAME%lib" -Dant.library.dir="%DIRNAME%lib" org.apache.tools.ant.launch.Launcher -buildfile "%SEAMGENDIR%\build.xml" %ARGS%

in seam.bat under windows

and

java -cp "${JAVA_HOME}/lib/tools.jar:../lib/ant-launcher.jar" -Dant.home=../lib -Dant.library.dir=../lib org.apache.tools.ant.launch.Launcher ${*}

in seam under linux.

A turnaround is to remove hibernate-all.jar from seam-csv/lib when using seam generate-entities.

[gavin.king]

That should now be fixed in current CVS, please test it for us.

[atao]

First try: everything seems ok now.