ignore intermittent test failure: AbstractAccumulatorTest::readyMaxTrigger

Change-Id: I9247f791fc36f4491697b7a278e6bf778c2eecf9
diff --git a/utils/misc/src/test/java/org/onlab/util/AbstractAccumulatorTest.java b/utils/misc/src/test/java/org/onlab/util/AbstractAccumulatorTest.java
index e3d87e2..4a7130e 100644
--- a/utils/misc/src/test/java/org/onlab/util/AbstractAccumulatorTest.java
+++ b/utils/misc/src/test/java/org/onlab/util/AbstractAccumulatorTest.java
@@ -113,6 +113,7 @@
         assertEquals("incorrect batch", "a", accumulator.batch);
     }
 
+    @Ignore("FIXME: timing sensitive test failing randomly.")
     @Test
     public void readyMaxTrigger() {
         TestAccumulator accumulator = new TestAccumulator();