From 3cd1af3ba11109443652639c1f1280f650a169c7 Mon Sep 17 00:00:00 2001
From: Alexey Sedunov <alexey.sedunov@jetbrains.com>
Date: Fri, 7 Mar 2014 14:15:18 +0400
Subject: [PATCH] Forbid nulls in getPackageNames() collection  #KT-4666 Fixed

---
 .../jetbrains/jet/lang/psi/JetPackageDirective.java | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/psi/JetPackageDirective.java b/compiler/frontend/src/org/jetbrains/jet/lang/psi/JetPackageDirective.java
index 8ef4442cc79..8d1efecf9a8 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/psi/JetPackageDirective.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/psi/JetPackageDirective.java
@@ -50,10 +50,19 @@ public class JetPackageDirective extends JetReferenceExpression {
         List<JetSimpleNameExpression> packageNames = ContainerUtil.newArrayList();
         while (nameExpression instanceof JetQualifiedExpression) {
             JetQualifiedExpression qualifiedExpression = (JetQualifiedExpression) nameExpression;
-            packageNames.add((JetSimpleNameExpression) qualifiedExpression.getSelectorExpression());
+
+            JetExpression selector = qualifiedExpression.getSelectorExpression();
+            if (selector instanceof JetSimpleNameExpression) {
+                packageNames.add((JetSimpleNameExpression) selector);
+            }
+
             nameExpression = qualifiedExpression.getReceiverExpression();
         }
-        packageNames.add((JetSimpleNameExpression) nameExpression);
+
+        if (nameExpression instanceof JetSimpleNameExpression) {
+            packageNames.add((JetSimpleNameExpression) nameExpression);
+        }
+
         Collections.reverse(packageNames);
 
         return packageNames;