From f5e71dbd3660274c68599019212640c67b7ee93d Mon Sep 17 00:00:00 2001
From: Fabian Becker <halfdan@xnorfz.de>
Date: Tue, 21 Oct 2014 09:40:45 +0200
Subject: [PATCH] Fix classpath bug introduced with performance op.

---
 src/eva2/tools/ReflectPackage.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/eva2/tools/ReflectPackage.java b/src/eva2/tools/ReflectPackage.java
index 0e223e1b..5e65a93b 100644
--- a/src/eva2/tools/ReflectPackage.java
+++ b/src/eva2/tools/ReflectPackage.java
@@ -230,7 +230,8 @@ public class ReflectPackage {
             if (aDynCP.endsWith(".jar")) {
                 // Skip JARs that don't start with the EvA substring.
                 // This improves performance a lot when having a lot of JARs on the classpath
-                if (!aDynCP.substring(0, aDynCP.lastIndexOf(System.getProperty("file.separator"))).contains("EvA")) {
+                int index = aDynCP.lastIndexOf(System.getProperty("file.separator"));
+                if (index != -1 && !aDynCP.substring(0, index).contains("EvA")) {
                     continue;
                 }
                 getClassesFromJarFltr(set, aDynCP, pkg, includeSubs, reqSuperCls);