Blacklist flakey test.

bug: 70958370
Change-Id: If2007d3c44a14dc50e73c5f4927f7c0194474af8
diff --git a/tools/prebuilt_libjdwp_art_failures.txt b/tools/prebuilt_libjdwp_art_failures.txt
index 6052f23..eaa99a3 100644
--- a/tools/prebuilt_libjdwp_art_failures.txt
+++ b/tools/prebuilt_libjdwp_art_failures.txt
@@ -123,6 +123,7 @@
   description: "Test is flakey",
   result: EXEC_FAILED,
   bug: 70958370,
-  name: "org.apache.harmony.jpda.tests.jdwp.ObjectReference.EnableCollectionTest#testEnableCollection001"
+  names: [ "org.apache.harmony.jpda.tests.jdwp.ObjectReference.EnableCollectionTest#testEnableCollection001",
+           "org.apache.harmony.jpda.tests.jdwp.MultiSession.EnableCollectionTest.testEnableCollection001" ]
 }
 ]