From 8e53832b18453d2dea5c2411982d42f1f211d320 Mon Sep 17 00:00:00 2001
From: Karsten Thoms <karsten.thoms@itemis.de>
Date: Wed, 14 Nov 2018 04:36:54 +0100
Subject: [PATCH] [#959] hasAnnotation: Add null guard

Signed-off-by: Karsten Thoms <karsten.thoms@itemis.de>
---
 .../src/org/eclipse/xtext/xtext/XtextValidator.java            | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/org.eclipse.xtext/src/org/eclipse/xtext/xtext/XtextValidator.java b/org.eclipse.xtext/src/org/eclipse/xtext/xtext/XtextValidator.java
index a4f5d0e84..03e187dc8 100644
--- a/org.eclipse.xtext/src/org/eclipse/xtext/xtext/XtextValidator.java
+++ b/org.eclipse.xtext/src/org/eclipse/xtext/xtext/XtextValidator.java
@@ -1322,6 +1322,9 @@ public class XtextValidator extends AbstractDeclarativeValidator {
 	 * @since 2.14
 	 */
 	protected boolean hasAnnotation(AbstractRule rule, String annotationName) {
+		if (rule == null) {
+			return false;
+		}
 		return rule.getAnnotations().stream().anyMatch(e -> annotationName.equals(e.getName()));
 	}