[ https://issues.jboss.org/browse/JBIDE-22544?page=com.atlassian.jira.plugi... ] Viacheslav Kabanovich edited comment on JBIDE-22544 at 6/6/16 8:54 PM: ----------------------------------------------------------------------- org.eclipse.wst.xml.core.internal.validation.eclipse.Validator is called twice from org.eclipse.wst.validation.internal.ValManager and all results are summed. This happens not only for batch job xml, but for any xml file. It is shown in preferences Validation list as 'XML Validator'. If I disable all other validators, still error markers are duplicated. If I disable 'XML Validator', this kind of errors does not appear. But, the problem is not that the validator duplicates errors itself, but it is that the validator is called twice during the project validation. ValBuilderJob.runInWorkspace() has a loop in which it repeats validation until getRequest() returns null. Then ValManager.validate(IProject,...) calls delete markers, but it works only for the first call, it is designed to accumulate markers created in multiple calls from ValBuilderJob during the same build. Two 'complete' requests that make the same file to be validated twice come independently from 1) org.eclipse.wst.validation.internal.operations.ValidationBuilder 2) org.eclipse.wst.jsdt.internal.core.builder.JavaBuilder was (Author: scabanovich): org.eclipse.wst.xml.core.internal.validation.eclipse.Validator is called twice from org.eclipse.wst.validation.internal.ValManager and all results are summed. This happens not only for batch job xml, but for any xml file. It is shown in preferences Validation list as 'XML Validator'. If I disable all other validators, still error markers are duplicated. If I disable 'XML Validator', this kind of errors does not appear. But, the problem is not that the validator duplicates errors itself, but it is that the validator is called twice during the project validation. ValBuilderJob.runInWorkspace() has a loop in which it repeats validation until getRequest() returns null. Then ValManager.validate(IProject,...) calls delete markers, but it works only for the first call, it is designed to accumulate markers created in multiple calls from ValBuilderJob during the same build. Two 'complete' request that make the same file to be validated twice come independently from 1) org.eclipse.wst.validation.internal.operations.ValidationBuilder 2) org.eclipse.wst.jsdt.internal.core.builder.JavaBuilder -- This message was sent by Atlassian JIRA (v6.4.11#64026)