I am using Cayenne 4.0.M3.
I want to build an graph of persistent objects using the api for many targets,
but I get the following trace:
Exception in thread "main" java.lang.NullPointerException
at
org.apache.cayenne.CayenneDataObject.addToManyTarget(CayenneDataObject.java:248)
at
com.ace.pcexpress.pos.model.auto._DocumentoInventario.addToDetalle(_DocumentoInventario.java:92)
at
org.example.cayenne.Main.setupNewDocumentoInventarioWithNewProduct(Main.java:350)
at org.example.cayenne.Main.main(Main.java:80)
Which relevan line on cayenne code is:
getObjectContext().propertyChanged(this, relName, null, value);
this fails because the source object is transient (so, does not have an
objectcontex). The same happens with removeToManyTarget. Atte. Juan Manuel Díaz
Lara
