I was trying to run Hibernate Code Generation > Schema Documentation by using the GraphViz option. It doesn't work and throws an exception to me.

I opened the error log and it gives me this:

!SESSION 2007-03-05 16:53:42.512 -----------------------------------------------
eclipse.buildId=M20070212-1330
java.version=1.5.0_07
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Command-line arguments: -os win32 -ws win32 -arch x86

!ENTRY org.eclipse.update.core 4 0 2007-03-05 16:55:59.779
!MESSAGE Unable to retrieve remote reference "http://download.jboss.org/jbosside/updates/development/features/org.jbpm.feature_3.0.12.jar". [Server returned HTTP response code: "404 Not Found" for URL: http://download.jboss.org/jbosside/upda ... 3.0.12.jar.]
!STACK 0
org.eclipse.update.internal.core.FatalIOException: Server returned HTTP response code: "404 Not Found" for URL: http://download.jboss.org/jbosside/upda ... 3.0.12.jar.
at org.eclipse.update.internal.core.UpdateManagerUtils.checkConnectionResult(UpdateManagerUtils.java:561)
at org.eclipse.update.core.ContentReference.getInputStream(ContentReference.java:153)
at org.eclipse.update.core.FeatureContentProvider.asLocalReference(FeatureContentProvider.java:268)
at org.eclipse.update.internal.core.FeaturePackagedContentProvider.getFeatureEntryArchiveReferences(FeaturePackagedContentProvider.java:157)
at org.eclipse.update.internal.core.FeaturePackagedContentProvider.getFeatureManifestReference(FeaturePackagedContentProvider.java:83)
at org.eclipse.update.internal.core.FeaturePackagedFactory.createFeature(FeaturePackagedFactory.java:39)
at org.eclipse.update.core.Site.createFeature(Site.java:527)
at org.eclipse.update.core.FeatureReference.createFeature(FeatureReference.java:122)
at org.eclipse.update.core.FeatureReference.getFeature(FeatureReference.java:110)
at org.eclipse.update.core.FeatureReference.getFeature(FeatureReference.java:97)
at org.eclipse.update.internal.search.SiteSearchCategory$FeatureDownloader.run(SiteSearchCategory.java:226)
at java.lang.Thread.run(Thread.java:595)


Do I need to install anything in order to use GraphViz? I tried to generate Schema Document without GraphViz option, and it works very well.

Thanks,

that exception relates to an updatesite error; nothing to do with graphviz.

are you sure you are pasting the right message ?