From dc7a65287fc2ca0f8fd61f9b50a82b6088c4f9bd Mon Sep 17 00:00:00 2001
From: Sebastian Zarnekow <Sebastian.Zarnekow@itemis.de>
Date: Mon, 7 Nov 2011 19:46:14 +0100
Subject: [PATCH] [xtext] Fix: IOOBE for heavily broken Xtext grammars, e.g.
 with unclosed EPackage URIs

---
 .../src/org/eclipse/xtext/xtext/XtextLinkingService.java        | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/plugins/org.eclipse.xtext/src/org/eclipse/xtext/xtext/XtextLinkingService.java b/plugins/org.eclipse.xtext/src/org/eclipse/xtext/xtext/XtextLinkingService.java
index 47ea4779f..6594464bc 100644
--- a/plugins/org.eclipse.xtext/src/org/eclipse/xtext/xtext/XtextLinkingService.java
+++ b/plugins/org.eclipse.xtext/src/org/eclipse/xtext/xtext/XtextLinkingService.java
@@ -222,6 +222,8 @@ public class XtextLinkingService extends DefaultLinkingService {
 				return null;
 			if (uri.fragment() == null) {
 				Resource resource = resourceSet.getResource(uri, true);
+				if (resource.getContents().isEmpty())
+					return null;
 				EPackage result = (EPackage) resource.getContents().get(0);
 				return result;
 			}