From c0fdff96230cef9648a61b105f60fe21fabcafb0 Mon Sep 17 00:00:00 2001
From: Dmitry Batkovich <dmitry.batkovich@jetbrains.com>
Date: Mon, 3 Oct 2016 17:46:06 +0300
Subject: [PATCH] fix npe while conversion of psi to compiler element

---
 .../compiler/CompilerReferenceServiceImpl.java        | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/java/compiler/impl/src/com/intellij/compiler/CompilerReferenceServiceImpl.java b/java/compiler/impl/src/com/intellij/compiler/CompilerReferenceServiceImpl.java
index 7abb8229bb16..5542f66ce74b 100644
--- a/java/compiler/impl/src/com/intellij/compiler/CompilerReferenceServiceImpl.java
+++ b/java/compiler/impl/src/com/intellij/compiler/CompilerReferenceServiceImpl.java
@@ -186,9 +186,14 @@ public class CompilerReferenceServiceImpl extends CompilerReferenceService {
     if (myDirtyScope.contains(vFile)) {
       return null;
     }
-    CompilerElement[] compilerElements = place == ElementPlace.SRC
-                                         ? new CompilerElement[]{adapter.asCompilerElement(element)}
-                                         : adapter.libraryElementAsCompilerElements(element);
+    CompilerElement[] compilerElements;
+    if (place == ElementPlace.SRC) {
+      final CompilerElement compilerElement = adapter.asCompilerElement(element);
+      compilerElements = compilerElement == null ? CompilerElement.EMPTY_ARRAY : new CompilerElement[]{compilerElement};
+    }
+    else {
+      compilerElements = adapter.libraryElementAsCompilerElements(element);
+    }
     if (compilerElements.length == 0) return null;
 
     synchronized (myLock) {