Fix the hardcoded path.

Change-Id: I13f47555966e9d48703f14e3e9a80e2d9af80c2b
diff --git a/test/068-classloader/src/FancyLoader.java b/test/068-classloader/src/FancyLoader.java
index 44f335b..6a153cc 100644
--- a/test/068-classloader/src/FancyLoader.java
+++ b/test/068-classloader/src/FancyLoader.java
@@ -38,7 +38,7 @@
     static final String CLASS_PATH = "classes-ex/";
 
     /* this is the "alternate" DEX/Jar file */
-    static final String DEX_FILE = "/data/run-test/068-classloader-ex.jar";
+    static final String DEX_FILE = System.getenv("DEX_LOCATION") + "/068-classloader-ex.jar";
 
     /* on Dalvik, this is a DexFile; otherwise, it's null */
     private Class mDexClass;