--- old/test/testlibrary/com/oracle/java/testlibrary/InputArguments.java	2013-09-12 23:29:45.154070655 +0200
+++ new/test/testlibrary/com/oracle/java/testlibrary/InputArguments.java	2013-09-12 23:29:45.070070659 +0200
@@ -39,13 +39,19 @@
     }
 
     /**
-     * Returns true if {@code arg} is an input argument to the VM.
+     * Returns true if {@code prefix} is the start of an input argument to the
+     * VM.
      *
-     * @param arg The name of the argument.
-     * @return {@code true} if the given argument is an input argument,
-     *         otherwise {@code false}.
+     * @param prefix The start of the argument.
+     * @return {@code true} if the given argument is the start of an input
+     *         argument, otherwise {@code false}.
      */
-    public static boolean contains(String arg) {
-        return args.contains(arg);
+    public static boolean contains(String prefix) {
+        for (String arg : args) {
+            if (arg.startsWith(prefix)) {
+                return true;
+            }
+        }
+        return false;
     }
 }