Merge remote branch 'origin/4.7' into 4.7-lighthouse

Conflicts:
	src/gui/kernel/qapplication.cpp
	src/gui/kernel/qapplication_p.h
	src/gui/kernel/qwidget.cpp

1 files changed, 7 insertions, 0 deletions

diff --git a/src/declarative/qml/qdeclarativecomponent.cpp b/src/declarative/qml/qdeclarativecomponent.cpp
index 6a2d2d1..d6bb216 100644
--- a/src/declarative/qml/qdeclarativecomponent.cpp
+++ b/src/declarative/qml/qdeclarativecomponent.cpp
@@ -437,6 +437,13 @@ void QDeclarativeComponent::loadUrl(const QUrl &url)
     else
         d->url = url;
 
+    if (url.isEmpty()) {
+        QDeclarativeError error;
+        error.setDescription(tr("Invalid empty URL"));
+        d->state.errors << error;
+        return;
+    }
+
     QDeclarativeCompositeTypeData *data = 
         QDeclarativeEnginePrivate::get(d->engine)->typeManager.get(d->url);