--- old/test/gc/6941923/Test6941923.java	2015-02-24 10:31:14.195564452 -0800
+++ new/test/gc/6941923/Test6941923.java	2015-02-24 10:31:13.835547045 -0800
@@ -26,6 +26,7 @@
  * @bug 6941923
  * @summary test flags for gc log rotation
  * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
  * @run main/othervm/timeout=600 Test6941923
  *
  */