From 54ff3f73fbf1999350ebec658f806e564c4411cf Mon Sep 17 00:00:00 2001
From: Andrey Breslav <andrey.breslav@jetbrains.com>
Date: Fri, 7 Dec 2012 22:06:47 +0400
Subject: [PATCH] Clarifying details added to the error message

---
 .../java/kotlinSignature/SignaturesPropagationData.java   | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/kotlinSignature/SignaturesPropagationData.java b/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/kotlinSignature/SignaturesPropagationData.java
index bf95ae98a79..d4642c12aa6 100644
--- a/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/kotlinSignature/SignaturesPropagationData.java
+++ b/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/kotlinSignature/SignaturesPropagationData.java
@@ -21,6 +21,7 @@ import com.google.common.collect.Multimap;
 import com.google.common.collect.Sets;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.diagnostic.Logger;
+import com.intellij.openapi.util.SystemInfo;
 import com.intellij.psi.HierarchicalMethodSignature;
 import com.intellij.psi.PsiClass;
 import com.intellij.psi.PsiElement;
@@ -219,7 +220,12 @@ public class SignaturesPropagationData {
                         throw new IllegalStateException(errorMessage);
                     }
                     else {
-                        LOG.error(errorMessage);
+                        if (SystemInfo.isMac) {
+                            LOG.error("Remove duplicates from your JDK definition\n" + errorMessage);
+                        }
+                        else {
+                            LOG.error(errorMessage);
+                        }
                     }
                 }
                 else {