diff --git a/pregelix/pregelix-example/pom.xml b/pregelix/pregelix-example/pom.xml
index 6b9bc89..0cda633 100644
--- a/pregelix/pregelix-example/pom.xml
+++ b/pregelix/pregelix-example/pom.xml
@@ -23,6 +23,7 @@
 			</plugin>
 			<plugin>
 				<artifactId>maven-assembly-plugin</artifactId>
+                <version>2.2-beta-5</version>
 				<configuration>
 					<descriptorRefs>
 						<descriptorRef>jar-with-dependencies</descriptorRef>
@@ -41,6 +42,7 @@
 			<plugin>
 				<groupId>org.codehaus.mojo</groupId>
 				<artifactId>appassembler-maven-plugin</artifactId>
+                <version>1.3</version>
 				<executions>
 					<execution>
 						<configuration>
@@ -76,6 +78,7 @@
 			</plugin>
 			<plugin>
 				<artifactId>maven-clean-plugin</artifactId>
+				<version>2.4.1</version>
 				<configuration>
 					<filesets>
 						<fileset>
diff --git a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/dataload/DataLoadTest.java b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/dataload/DataLoadTest.java
index 7787347..a71c7ad 100644
--- a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/dataload/DataLoadTest.java
+++ b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/dataload/DataLoadTest.java
@@ -77,7 +77,6 @@
         ClusterConfig.setClusterPropertiesPath(PATH_TO_CLUSTER_PROPERTIES);
         cleanupStores();
         PregelixHyracksIntegrationUtil.init();
-        PregelixHyracksIntegrationUtil.createApp(HYRACKS_APP_NAME);
         LOGGER.info("Hyracks mini-cluster started");
         startHDFS();
         FileUtils.forceMkdir(new File(EXPECT_RESULT_DIR));
@@ -112,7 +111,6 @@
     }
 
     public void tearDown() throws Exception {
-        PregelixHyracksIntegrationUtil.destroyApp(HYRACKS_APP_NAME);
         PregelixHyracksIntegrationUtil.deinit();
         LOGGER.info("Hyracks mini-cluster shut down");
         cleanupHDFS();
diff --git a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestSuite.java b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestSuite.java
index 8a5c34b..1253bde 100644
--- a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestSuite.java
+++ b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestSuite.java
@@ -59,7 +59,6 @@
     private static final String DATA_PATH2 = "data/webmapcomplex/webmap_link.txt";
     private static final String HDFS_PATH2 = "/webmapcomplex/";
 
-    private static final String HYRACKS_APP_NAME = "giraph";
     private static final String HADOOP_CONF_PATH = ACTUAL_RESULT_DIR + File.separator + "conf.xml";
     private MiniDFSCluster dfsCluster;
 
@@ -71,7 +70,6 @@
         ClusterConfig.setClusterPropertiesPath(PATH_TO_CLUSTER_PROPERTIES);
         cleanupStores();
         PregelixHyracksIntegrationUtil.init();
-        PregelixHyracksIntegrationUtil.createApp(HYRACKS_APP_NAME);
         LOGGER.info("Hyracks mini-cluster started");
         FileUtils.forceMkdir(new File(ACTUAL_RESULT_DIR));
         FileUtils.cleanDirectory(new File(ACTUAL_RESULT_DIR));
@@ -118,7 +116,6 @@
     }
 
     public void tearDown() throws Exception {
-        PregelixHyracksIntegrationUtil.destroyApp(HYRACKS_APP_NAME);
         PregelixHyracksIntegrationUtil.deinit();
         LOGGER.info("Hyracks mini-cluster shut down");
         cleanupHDFS();