From 3a1451abf385ca75fa95e4c22f7583e11861eeba Mon Sep 17 00:00:00 2001
From: Eugene Zhuravlev <jeka@intellij.com>
Date: Fri, 13 Jul 2012 15:28:14 +0200
Subject: [PATCH] do not load snappy implementation if its usage is explicitly
 disabled via system property

---
 .../src/com/intellij/util/indexing/IOUtils.java       | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/platform/lang-impl/src/com/intellij/util/indexing/IOUtils.java b/platform/lang-impl/src/com/intellij/util/indexing/IOUtils.java
index 783c4a8cb08f..85064910d31d 100644
--- a/platform/lang-impl/src/com/intellij/util/indexing/IOUtils.java
+++ b/platform/lang-impl/src/com/intellij/util/indexing/IOUtils.java
@@ -31,9 +31,14 @@ public class IOUtils {
   private static volatile boolean canUseSnappy;
   static {
     try {
-      Field impl = Snappy.class.getDeclaredField("impl");
-      impl.setAccessible(true);
-      canUseSnappy = impl.get(null) != null && System.getProperty("idea.no.snappy") == null;
+      if (System.getProperty("idea.no.snappy") == null) { // if enabled
+        Field impl = Snappy.class.getDeclaredField("impl");
+        impl.setAccessible(true);
+        canUseSnappy = impl.get(null) != null;
+      }
+      else {
+        canUseSnappy = false;
+      }
     }
     catch (Throwable e) {}
   }