2023-08-31T22:31:51,428 | WARN  | opendaylight-cluster-data-shard-dispatcher-29 | ShardDataTree                    | 210 - org.opendaylight.controller.sal-distributed-datastore - 8.0.1 | member-1-shard-topology-operational: Unexpected failure in validation phase
java.util.ConcurrentModificationException: null
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1597) ~[?:?]
	at java.util.HashMap$ValueIterator.next(HashMap.java:1625) ~[?:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:409) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkMergeApplicable(AbstractNodeContainerModificationStrategy.java:396) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:111) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:415) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkMergeApplicable(AbstractNodeContainerModificationStrategy.java:396) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:111) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:415) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkMergeApplicable(AbstractNodeContainerModificationStrategy.java:396) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:111) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:415) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkMergeApplicable(AbstractNodeContainerModificationStrategy.java:396) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:111) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:415) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkMergeApplicable(AbstractNodeContainerModificationStrategy.java:396) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:111) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkChildPreconditions(AbstractNodeContainerModificationStrategy.java:415) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractNodeContainerModificationStrategy.checkTouchApplicable(AbstractNodeContainerModificationStrategy.java:374) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.SchemaAwareApplyOperation.checkApplicable(SchemaAwareApplyOperation.java:109) ~[bundleFile:?]
	at org.opendaylight.yangtools.yang.data.tree.impl.AbstractDataTreeTip.validate(AbstractDataTreeTip.java:37) ~[bundleFile:?]