diff -ur a/mockito/src/main/java/com/google/dexmaker/mockito/DexmakerMockMaker.java b/mockito/src/main/java/com/google/dexmaker/mockito/DexmakerMockMaker.java
--- a/mockito/src/main/java/com/google/dexmaker/mockito/DexmakerMockMaker.java	2013-01-07 11:27:13.000000000 -0800
+++ b/mockito/src/main/java/com/google/dexmaker/mockito/DexmakerMockMaker.java	2013-02-15 11:27:44.000000000 -0800
@@ -45,9 +45,10 @@
             Class[] classesToMock = new Class[extraInterfaces.length + 1];
             classesToMock[0] = typeToMock;
             System.arraycopy(extraInterfaces, 0, classesToMock, 1, extraInterfaces.length);
+            ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
             @SuppressWarnings("unchecked") // newProxyInstance returns the type of typeToMock
-            T mock = (T) Proxy.newProxyInstance(typeToMock.getClassLoader(),
-                    classesToMock, invocationHandler);
+            T mock = (T) Proxy.newProxyInstance(contextClassLoader, classesToMock,
+                    invocationHandler);
             return mock;
 
         } else {