Missing AnyToAny item causes ItemNotFoundException when viewing a transformation

[Nicklas Nordborg]

A transformation may have AnyToAny links to other items (files). Due to a bug in Base1PluginExcecuter (#739) there may be AnyToAny-links that lead to a missing item. This causes an exception in the common/list_anytoany.jsp JSP page:

net.sf.basedb.core.ItemNotFoundException: Item not found: File[id=3]
  at net.sf.basedb.core.File.getById(File.java:117)
  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 net.sf.basedb.core.Item.getById(Item.java:661)
  at net.sf.basedb.core.AnyToAny.getTo(AnyToAny.java:533)
  at org.apache.jsp.common.anytoany.list_005fanytoany_jsp._jspService(list_005fanytoany_jsp.java:216)

The exception causes the page to not display correctly. The proper way to handle this problem is to catch the expection and display a note about the missing item.

[Nicklas Nordborg]

(In [3707]) Fixes #740: Missing AnyToAny item causes ItemNotFoundException when viewing a transformation