1 files changed, 6 insertions, 1 deletions
diff --git a/src/main/java/org/junit/runners/parameterized/TestWithParameters.java b/src/main/java/org/junit/runners/parameterized/TestWithParameters.java
index 1c5abd9..1b86644 100644
--- a/src/main/java/org/junit/runners/parameterized/TestWithParameters.java
+++ b/src/main/java/org/junit/runners/parameterized/TestWithParameters.java
@@ -1,7 +1,6 @@
 package org.junit.runners.parameterized;
 
 import static java.util.Collections.unmodifiableList;
-import static org.junit.internal.Checks.notNull;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -74,4 +73,10 @@ public class TestWithParameters {
         return testClass.getName() + " '" + name + "' with parameters "
                 + parameters;
     }
+
+    private static void notNull(Object value, String message) {
+        if (value == null) {
+            throw new NullPointerException(message);
+        }
+    }
 }