From b7711678c276a2fd65c1e501c943d1dc6f13286a Mon Sep 17 00:00:00 2001
From: Ilya Kirillov <ilya.kirillov@jetbrains.com>
Date: Thu, 5 Dec 2019 18:22:56 +0300
Subject: [PATCH] EA-218474: fix IAE in resolving empty fqName in new J2K

---
 .../org/jetbrains/kotlin/nj2k/conversions/resolveUtil.kt    | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/resolveUtil.kt b/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/resolveUtil.kt
index 45c392fc4e1..aac5a041bbc 100644
--- a/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/resolveUtil.kt
+++ b/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/resolveUtil.kt
@@ -71,13 +71,15 @@ class JKResolver(val project: Project, module: Module?, private val contextEleme
         KotlinTopLevelPropertyFqnNameIndex.getInstance()[fqName.asString(), project, scope].firstOrNull()
 
 
-    private fun resolveFqName(fqName: FqName): PsiElement? =
-        constructImportDirectiveWithContext(fqName)
+    private fun resolveFqName(fqName: FqName): PsiElement? {
+        if (fqName.isRoot) return null
+        return constructImportDirectiveWithContext(fqName)
             .getChildOfType<KtDotQualifiedExpression>()
             ?.selectorExpression
             ?.let {
                 it.references.mapNotNull { it.resolve() }.firstOrNull()
             }
+    }
 
 
     private fun constructImportDirectiveWithContext(fqName: FqName): KtImportDirective {