HBASE-22651 ErrorProne issue in TestByteBufferArray

Signed-off-by: Michael Stack <stack@apache.org>

hbase-common/src/test/java/org/apache/hadoop/hbase/util/TestByteBufferArray.java

@@ -97,6 +97,7 @@ public class TestByteBufferArray {
     void run() throws IOException;
   }
 
+  @SuppressWarnings("TryFailThrowable")
   private void expectedAssert(Call r) throws IOException {
     try {
       r.run();