Description of the Issue

Steps to Reproduce the Issue

Sample XML

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE server>
<!-- $Id: properties-service.xml 16662 2003-08-27 04:38:22Z patriot1burke $ -->
<server>

<mbean code="org.jboss.varia.property.SystemPropertiesService"
name="jboss:type=Service,name=SystemProperties">

<attribute name="Properties">
<!--ABC-->
</attribute>

</mbean>

</server>

1. Remove > in the comment within the attribute (i.e to <!--ABC--)
2. Save
3. Reopen the same file and add back the > the comment within the attribute (i.e )
4. Application Crash
   

Expected Behavior

Save Successfully

Actual Behavior

Application Crash

Debug Information