remove AsterixThreadExecutor.shutdown() again
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
index ccbf68f..236df53 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
@@ -17,7 +17,6 @@
 import java.io.File;
 import java.util.EnumSet;
 
-import edu.uci.ics.asterix.common.api.AsterixThreadExecutor;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.hyracks.bootstrap.CCApplicationEntryPoint;
 import edu.uci.ics.asterix.hyracks.bootstrap.NCApplicationEntryPoint;
@@ -100,7 +99,6 @@
         nc2.stop();
         nc1.stop();
         cc.stop();
-        AsterixThreadExecutor.INSTANCE.shutdown();
     }
 
     public static void runJob(JobSpecification spec) throws Exception {
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixThreadExecutor.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixThreadExecutor.java
index fb87f5e..edd4b2a 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixThreadExecutor.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixThreadExecutor.java
@@ -36,8 +36,4 @@
     public Future<Object> submit(Callable command) {
         return (Future<Object>) executorService.submit(command);
     }
-    
-    public void shutdown() {
-        executorService.shutdown();
-    }
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java
index 1bcfa22..79625a6 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java
@@ -154,7 +154,6 @@
             log("\n*** Test Passed ***");
         }
         ((LogManager) txnProvider.getLogManager()).stop(false, null);
-        AsterixThreadExecutor.INSTANCE.shutdown();
     }
 
     public boolean handleRequest(LockRequest request) throws ACIDException {
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerRandomUnitTest.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerRandomUnitTest.java
index 8cdc87b..214aa35 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerRandomUnitTest.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerRandomUnitTest.java
@@ -78,7 +78,6 @@
             generateEntityLockUpgradeThread(txnProvider);
         }
         ((LogManager) txnProvider.getLogManager()).stop(false, null);
-        AsterixThreadExecutor.INSTANCE.shutdown();
     }
 
     private static void generateEntityLockThread(TransactionSubsystem txnProvider) {