>It could be the same thread - if you add/remove while iterating over the collection.

Yes, but not with that stacktrace.

Sven


On 16.05.2016 22:17, Martin Grigorov wrote:
Hi,

On May 16, 2016 10:08 PM, "Sven Meier" <s...@meiers.net> wrote:
Hi,

org.apache.commons.collections4.map.LinkedMap.writeObject
Wicket does not use commons-collections, so please check where this
instance is coming from.
It seems another thread is working on the map while Wicket tries to
serialize the page.

It could be the same thread - if you add/remove while iterating over the
collection.

Hope this helps
Sven



On 16.05.2016 14:21, Francesco Chicchiriccò wrote:
Hi all,
I am sometimes seeing exceptions like [1] in Syncope console logs, since
upgrade to Wicket 7.3.0 - I am sure enough that this was not happening with
Wicket 7.2.0.
Any hint?
TIA

Regards.

[1] https://paste.apache.org/Q7Jy


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