From e7d064e89cb9ede61ebaf7538dd802cc7e169d09 Mon Sep 17 00:00:00 2001
From: Alena Laskavaia <elaskavaia.cdt@gmail.com>
Date: Thu, 18 Feb 2016 12:15:52 -0500
Subject: [PATCH] qt core: prevent exceptions when deleting closed project

Change-Id: Ia2facb7682e83dc4d5023713f0d040b696f4ba6b
---
 .../cdt/internal/qt/core/build/QtBuildConfigurationFactory.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qt/org.eclipse.cdt.qt.core/src/org/eclipse/cdt/internal/qt/core/build/QtBuildConfigurationFactory.java b/qt/org.eclipse.cdt.qt.core/src/org/eclipse/cdt/internal/qt/core/build/QtBuildConfigurationFactory.java
index 5467b3d85f7..0faab232710 100644
--- a/qt/org.eclipse.cdt.qt.core/src/org/eclipse/cdt/internal/qt/core/build/QtBuildConfigurationFactory.java
+++ b/qt/org.eclipse.cdt.qt.core/src/org/eclipse/cdt/internal/qt/core/build/QtBuildConfigurationFactory.java
@@ -162,7 +162,7 @@ public class QtBuildConfigurationFactory implements IAdapterFactory {
 					|| event.getType() == IResourceChangeEvent.PRE_DELETE) {
 				if (event.getResource().getType() == IResource.PROJECT) {
 					IProject project = event.getResource().getProject();
-					if (QtNature.hasNature(project)) {
+					if (project.isOpen() && project.exists() && QtNature.hasNature(project)) {
 						try {
 							for (IBuildConfiguration config : project.getBuildConfigs()) {
 								cache.remove(config);