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Dan Haywood commented on ISIS-1741: ----------------------------------- What must be happening is that a new class or type (ObjectSpecification in the metamodel API) is being discovered during the course of running the validators. The cheap-n-cheerful fix is to take a copy of "allSpecifications" on ~ line 555 of DomainObjectAnnotationFacetFactory https://github.com/apache/isis/blob/5b86f37edbc5cf2e9ae98f6898bcefd3e842983a/core/metamodel/src/main/java/org/apache/isis/core/metamodel/facets/object/domainobject/DomainObjectAnnotationFacetFactory.java#L555 > ConcurrentModificationException during startup when launching packaged webapp > with jetty > ---------------------------------------------------------------------------------------- > > Key: ISIS-1741 > URL: https://issues.apache.org/jira/browse/ISIS-1741 > Project: Isis > Issue Type: Bug > Affects Versions: 1.15.0 > Reporter: Vladimir Nisevic > Attachments: 1741_applog.txt > > > I get this exception (see attachment [^1741_applog.txt]) only when launching > the version packaged with jetty, exception doesn't occur when launching > within IDE (IntelliJ). > Maybe any idea? Not sure how could I reproduce it with simpleapp.... -- This message was sent by Atlassian JIRA (v6.4.14#64029)