crash on automated script step parameter replacement

[Ralf Claussnitzer]

When using automated script steps one can use a set of dynamic parameters to pass process parameters to external programs. An automated script call can look like this: /usr/local/bin/somescript.sh {<selector>.<property>}. Three variable sources can be selected by a <selector>. Within this variable source any property named <property> will be resolved. After resolving all variable templates the script /usr/local/bin/somescript.sh is finally called.

By looking at the source code, three selectors are available:
1- template Referring to a processes template
2- process Referring to the process itself
3- product Referring to product description

Unfortunately, the variable resolving mechanism is bound to a hibernate session which seem to have disappeared at time of the resolving. The application crashes on execution of the defined step:

ERROR 2012-08-22 14:54:20,413 (LazyInitializationException.java:<init>:42)
        failed to lazily initialize a collection of role: de.sub.goobi.beans.Prozess.vorlagen, no session or session was closed
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: de.sub.goobi.beans.Prozess.vorlagen, no session or session was closed
        at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:380)
        at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:372)
        at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:365)
        at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:108)
        at org.hibernate.collection.PersistentSet.toArray(PersistentSet.java:194)
        at java.util.ArrayList.<init>(ArrayList.java:131)
        at de.sub.goobi.beans.Prozess.getVorlagenList(Prozess.java:464)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
        at de.sub.goobi.beans.Prozess_$$_javassist_7.getVorlagenList(Prozess_$$_javassist_7.java)
        at de.sub.goobi.helper.VariableReplacer.replace(VariableReplacer.java:200)
        at de.sub.goobi.helper.HelperSchritte.executeScript(HelperSchritte.java:205)
        at de.sub.goobi.helper.HelperSchritte.executeAllScripts(HelperSchritte.java:158)
        at de.sub.goobi.helper.ScriptThread.run(ScriptThread.java:48)