From c478e965e4bba1f36437c907b75acf118de3a549 Mon Sep 17 00:00:00 2001
From: konsoletyper <konsoletyper@gmail.com>
Date: Tue, 9 Sep 2014 19:37:42 +0400
Subject: [PATCH] Trying to fix bug that occurs during maven build on Max OS:
 https://github.com/konsoletyper/teavm/issues/12

---
 .../org/teavm/classlib/impl/report/JCLComparisonBuilder.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/teavm-classlib/src/main/java/org/teavm/classlib/impl/report/JCLComparisonBuilder.java b/teavm-classlib/src/main/java/org/teavm/classlib/impl/report/JCLComparisonBuilder.java
index 20232184b..38e78a6f0 100644
--- a/teavm-classlib/src/main/java/org/teavm/classlib/impl/report/JCLComparisonBuilder.java
+++ b/teavm-classlib/src/main/java/org/teavm/classlib/impl/report/JCLComparisonBuilder.java
@@ -166,7 +166,7 @@ public class JCLComparisonBuilder {
             return false;
         }
         int slashIndex = name.lastIndexOf('/');
-        return packages.contains(name.substring(0, slashIndex));
+        return slashIndex >= 0 && packages.contains(name.substring(0, slashIndex));
     }
 
     private void compareClass(InputStream input) throws IOException {