From 88dba5ecebe549578be853be4ce153629068a553 Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Thu, 8 Sep 2011 14:54:32 +0200
Subject: [PATCH] IDEA-74055 NPE at
 com.intellij.codeInsight.template.macro.DescendantClassesEnumMacro.a

---
 .../template/macro/DescendantClassesEnumMacro.java           | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/java/java-impl/src/com/intellij/codeInsight/template/macro/DescendantClassesEnumMacro.java b/java/java-impl/src/com/intellij/codeInsight/template/macro/DescendantClassesEnumMacro.java
index b9468b5ce0df..5d979038950c 100644
--- a/java/java-impl/src/com/intellij/codeInsight/template/macro/DescendantClassesEnumMacro.java
+++ b/java/java-impl/src/com/intellij/codeInsight/template/macro/DescendantClassesEnumMacro.java
@@ -68,7 +68,10 @@ public class DescendantClassesEnumMacro implements Macro {
     if (params == null || params.length == 0) return null;
     PsiManager instance = PsiManager.getInstance(context.getProject());
 
-    final String paramResult = params[0].calculateResult(context).toString();
+    Result result = params[0].calculateResult(context);
+    if (result == null) return null;
+    
+    final String paramResult = result.toString();
     if (paramResult == null) return null;
 
     final boolean isAllowAbstract = isAllowAbstract(context, params);