diff --git a/bundles/org.eclipse.wst.html.ui/src-html-validation/org/eclipse/wst/html/internal/validation/HTMLValidationReporter.java b/bundles/org.eclipse.wst.html.ui/src-html-validation/org/eclipse/wst/html/internal/validation/HTMLValidationReporter.java
index dc4df1f..fd1442a 100644
--- a/bundles/org.eclipse.wst.html.ui/src-html-validation/org/eclipse/wst/html/internal/validation/HTMLValidationReporter.java
+++ b/bundles/org.eclipse.wst.html.ui/src-html-validation/org/eclipse/wst/html/internal/validation/HTMLValidationReporter.java
@@ -78,15 +78,15 @@
 	public void report(ValidationMessage message) {
 		if (message == null)
 			return;
-		if (this.file == null)
-			return;
-
 		IMessage mes = translateMessage(message);
 
 		if (this.reporter != null) {
 			this.reporter.addMessage(this.owner, mes);
 		}
 		else {
+			if (this.file == null)
+				return;
+
 			// add by myself?
 			String id = HTMLValidator.class.getName();
 			String location = Integer.toString(mes.getLineNumber());
diff --git a/bundles/org.eclipse.wst.html.ui/src-html-validation/org/eclipse/wst/html/internal/validation/HTMLValidator.java b/bundles/org.eclipse.wst.html.ui/src-html-validation/org/eclipse/wst/html/internal/validation/HTMLValidator.java
index 63a98f5..ce7625d 100644
--- a/bundles/org.eclipse.wst.html.ui/src-html-validation/org/eclipse/wst/html/internal/validation/HTMLValidator.java
+++ b/bundles/org.eclipse.wst.html.ui/src-html-validation/org/eclipse/wst/html/internal/validation/HTMLValidator.java
@@ -24,6 +24,7 @@
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IConfigurationElement;
 import org.eclipse.core.runtime.IExecutableExtension;
+import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.NullProgressMonitor;
 import org.eclipse.core.runtime.OperationCanceledException;
@@ -267,16 +268,28 @@
 				document = ((IDOMModel) model).getDocument();
 			}
 
-			if (document == null || !hasHTMLFeature(document))
-				return; // ignore
+			if (document == null || !hasHTMLFeature(document)) {
+				model.releaseFromRead();
+				return; //ignore
+			}
+			
+			IPath filePath = null;
+			IFile file = null;
 
 			ITextFileBuffer fb = FileBufferModelManager.getInstance().getBuffer(fDocument);
-			if (fb == null)
-				return;
+			if (fb != null) {
+				filePath = fb.getLocation();
 
-			IFile file = ResourcesPlugin.getWorkspace().getRoot().getFile(fb.getLocation());
-			if (file == null || !file.exists())
-				return;
+				if (filePath.segmentCount() > 1) {
+					file = ResourcesPlugin.getWorkspace().getRoot().getFile(filePath);
+					if (!file.isAccessible()) {
+						file = null;
+					}
+				}
+			}
+			else {
+				filePath = new Path(model.getId());
+			}
 
 			// this will be the wrong region if it's Text (instead of Element)
 			// we don't know how to validate Text
@@ -302,7 +315,7 @@
 					rep.clear();
 					adapter.setReporter(rep);
 
-					Message mess = new LocalizedMessage(IMessage.LOW_SEVERITY, file.getFullPath().toString().substring(1));
+					Message mess = new LocalizedMessage(IMessage.LOW_SEVERITY, filePath.toString().substring(1));
 					reporter.displaySubtask(this, mess);
 				}
 				adapter.validate(ir);