diff --git a/azkaban-common/src/main/java/azkaban/executor/ExecutorManager.java b/azkaban-common/src/main/java/azkaban/executor/ExecutorManager.java
index fde2c6d..d1120ea 100644
--- a/azkaban-common/src/main/java/azkaban/executor/ExecutorManager.java
+++ b/azkaban-common/src/main/java/azkaban/executor/ExecutorManager.java
@@ -32,19 +32,16 @@ import java.util.Set;
import java.util.TreeMap;
import java.util.concurrent.Callable;
import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.TimeUnit;
+
import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
import org.joda.time.DateTime;
+
import azkaban.alert.Alerter;
import azkaban.event.Event;
import azkaban.event.Event.Type;
