[DIGESTER-163] ConcurrentModificationException creating a new Digester via loaderInstance.newDigester()

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.2

Environment

Linux, JDK 6

• Assignee: Simone Tripodi
• Reporter: Torsten Krah
• Created: 14/Mar/12 08:00
• Updated: 19/Mar/12 09:17
• Resolved: 19/Mar/12 09:17

Description

I am gettig a ConcurrentModificationException when trying to create new Digester instance from a configured loader:
Trace is:

java.util.ConcurrentModificationException: null
	at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:761) ~[na:1.6.0_27]
	at java.util.LinkedList$ListItr.next(LinkedList.java:696) ~[na:1.6.0_27]
	at org.apache.commons.digester3.binder.FromBinderRuleSet.addRuleInstances(FromBinderRuleSet.java:130) ~[commons-digester3-3.2.jar:3.2]
	at org.apache.commons.digester3.binder.DigesterLoader.addRules(DigesterLoader.java:581) ~[commons-digester3-3.2.jar:3.2]
	at org.apache.commons.digester3.binder.DigesterLoader.newDigester(DigesterLoader.java:568) ~[commons-digester3-3.2.jar:3.2]
	at org.apache.commons.digester3.binder.DigesterLoader.newDigester(DigesterLoader.java:516) ~[commons-digester3-3.2.jar:3.2]
	at org.apache.commons.digester3.binder.DigesterLoader.newDigester(DigesterLoader.java:475) ~[commons-digester3-3.2.jar:3.2]
	at org.apache.commons.digester3.binder.DigesterLoader.newDigester(DigesterLoader.java:462) ~[commons-digester3-3.2.jar:3.2]

The binder documentation (employee servlet) and the mailing list did confirm to me, that the loader should be safe to be shared, so this should not happen.