I am getting a concurrentModificationException when I am trying to run a query. This is just reading the nodes and no actual modification is being done. Our environment configuration is 3 AEM instances cluster on Mongo. Exception details below. Any pointers highly appreciated.
Caused by: java.util.ConcurrentModificationException: null
at java.util.HashMap$HashIterator.nextNode(HashMap.java:1442)
at java.util.HashMap$KeyIterator.next(HashMap.java:1466)
at org.apache.jackrabbit.oak.security.authorization.permission.PermissionEntryProviderImpl.loadEntries(PermissionEntryProviderImpl.java:164)
at org.apache.jackrabbit.oak.security.authorization.permission.PermissionEntryProviderImpl.getEntries(PermissionEntryProviderImpl.java:142)
at org.apache.jackrabbit.oak.security.authorization.permission.CompiledPermissionImpl$TreePermissionImpl.getGroupEntries(CompiledPermissionImpl.java:564)
at org.apache.jackrabbit.oak.security.authorization.permission.CompiledPermissionImpl$TreePermissionImpl.access$1400(CompiledPermissionImpl.java:444)
at org.apache.jackrabbit.oak.security.authorization.permission.CompiledPermissionImpl$LazyIterator.getNext(CompiledPermissionImpl.java:609)
at org.apache.jackrabbit.oak.security.authorization.permission.CompiledPermissionImpl$LazyIterator.getNext(CompiledPermissionImpl.java:574)
at org.apache.jackrabbit.commons.iterator.AbstractLazyIterator.hasNext(AbstractLazyIterator.java:39)
at com.google.common.collect.Iterators$5.hasNext(Iterators.java:542)
at org.apache.jackrabbit.oak.security.authorization.permission.CompiledPermissionImpl$TreePermissionImpl.canRead(CompiledPermissionImpl.java:490)
at org.apache.jackrabbit.oak.core.SecureNodeBuilder.exists(SecureNodeBuilder.java:131)
at org.apache.jackrabbit.oak.plugins.tree.impl.AbstractTree.exists(AbstractTree.java:225)
at org.apache.jackrabbit.oak.core.MutableTree.exists(MutableTree.java:122)
at org.apache.jackrabbit.oak.query.ast.SelectorImpl.next(SelectorImpl.java:447)
at org.apache.jackrabbit.oak.query.QueryImpl$RowIterator.fetchNext(QueryImpl.java:843)
at org.apache.jackrabbit.oak.query.QueryImpl$RowIterator.hasNext(QueryImpl.java:868)
at org.apache.jackrabbit.oak.jcr.query.QueryResultImpl$4.fetch(QueryResultImpl.java:181)
at org.apache.jackrabbit.oak.jcr.query.QueryResultImpl$4.<init>(QueryResultImpl.java:176)
at org.apache.jackrabbit.oak.jcr.query.QueryResultImpl.getNodes(QueryResultImpl.java:169)
at org.apache.sling.jcr.resource.internal.helper.jcr.BasicQueryLanguageProvider.findResources(BasicQueryLanguageProvider.java:81)
at org.apache.sling.resourceresolver.impl.providers.stateful.AuthenticatedResourceProvider.findResources(AuthenticatedResourceProvider.java:260)
at org.apache.sling.resourceresolver.impl.helper.ResourceResolverControl.findResources(ResourceResolverControl.java:456)
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.findResources(ResourceResolverImpl.java:734)
