diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/pom.xml b/hyracks/hyracks-examples/btree-example/btreeclient/pom.xml
index 82919ca..ba296ac 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/pom.xml
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/pom.xml
@@ -44,6 +44,7 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>appassembler-maven-plugin</artifactId>
+        <version>1.3</version>
         <executions>
           <execution>
             <configuration>
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/InsertPipelineExample.java b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/InsertPipelineExample.java
index b6e8c72..8785f16 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/InsertPipelineExample.java
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/InsertPipelineExample.java
@@ -62,9 +62,6 @@
         @Option(name = "-port", usage = "Hyracks Cluster Controller Port (default: 1098)")
         public int port = 1098;
 
-        @Option(name = "-app", usage = "Hyracks Application name", required = true)
-        public String app;
-
         @Option(name = "-target-ncs", usage = "Comma separated list of node-controller names to use", required = true)
         public String ncs;
 
@@ -88,7 +85,7 @@
         JobSpecification job = createJob(options);
 
         long start = System.currentTimeMillis();
-        JobId jobId = hcc.startJob(options.app, job);
+        JobId jobId = hcc.startJob(job);
         hcc.waitForCompletion(jobId);
         long end = System.currentTimeMillis();
         System.err.println(start + " " + end + " " + (end - start));
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexBulkLoadExample.java b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexBulkLoadExample.java
index a6c7ea6..e9c3b1c 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexBulkLoadExample.java
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexBulkLoadExample.java
@@ -60,9 +60,6 @@
         @Option(name = "-port", usage = "Hyracks Cluster Controller Port (default: 1098)")
         public int port = 1098;
 
-        @Option(name = "-app", usage = "Hyracks Application name", required = true)
-        public String app;
-
         @Option(name = "-target-ncs", usage = "Comma separated list of node-controller names to use", required = true)
         public String ncs;
 
@@ -86,7 +83,7 @@
         JobSpecification job = createJob(options);
 
         long start = System.currentTimeMillis();
-        JobId jobId = hcc.startJob(options.app, job);
+        JobId jobId = hcc.startJob(job);
         hcc.waitForCompletion(jobId);
         long end = System.currentTimeMillis();
         System.err.println(start + " " + end + " " + (end - start));
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexSearchExample.java b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexSearchExample.java
index d24ba33..f9e567c 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexSearchExample.java
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexSearchExample.java
@@ -59,9 +59,6 @@
         @Option(name = "-port", usage = "Hyracks Cluster Controller Port (default: 1098)")
         public int port = 1098;
 
-        @Option(name = "-app", usage = "Hyracks Application name", required = true)
-        public String app;
-
         @Option(name = "-target-ncs", usage = "Comma separated list of node-controller names to use", required = true)
         public String ncs;
 
@@ -79,7 +76,7 @@
         JobSpecification job = createJob(options);
 
         long start = System.currentTimeMillis();
-        JobId jobId = hcc.startJob(options.app, job);
+        JobId jobId = hcc.startJob(job);
         hcc.waitForCompletion(jobId);
         long end = System.currentTimeMillis();
         System.err.println(start + " " + end + " " + (end - start));
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexBulkLoadExample.java b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexBulkLoadExample.java
index 5aa338a..bb3e174 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexBulkLoadExample.java
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexBulkLoadExample.java
@@ -55,9 +55,6 @@
         @Option(name = "-port", usage = "Hyracks Cluster Controller Port (default: 1098)")
         public int port = 1098;
 
-        @Option(name = "-app", usage = "Hyracks Application name", required = true)
-        public String app;
-
         @Option(name = "-target-ncs", usage = "Comma separated list of node-controller names to use", required = true)
         public String ncs;
 
@@ -81,7 +78,7 @@
         JobSpecification job = createJob(options);
 
         long start = System.currentTimeMillis();
-        JobId jobId = hcc.startJob(options.app, job);
+        JobId jobId = hcc.startJob(job);
         hcc.waitForCompletion(jobId);
         long end = System.currentTimeMillis();
         System.err.println(start + " " + end + " " + (end - start));
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexSearchExample.java b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexSearchExample.java
index 277668b..1b4bb40 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexSearchExample.java
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexSearchExample.java
@@ -59,9 +59,6 @@
         @Option(name = "-port", usage = "Hyracks Cluster Controller Port (default: 1098)")
         public int port = 1098;
 
-        @Option(name = "-app", usage = "Hyracks Application name", required = true)
-        public String app;
-
         @Option(name = "-target-ncs", usage = "Comma separated list of node-controller names to use", required = true)
         public String ncs;
 
@@ -82,7 +79,7 @@
         JobSpecification job = createJob(options);
 
         long start = System.currentTimeMillis();
-        JobId jobId = hcc.startJob(options.app, job);
+        JobId jobId = hcc.startJob(job);
         hcc.waitForCompletion(jobId);
         long end = System.currentTimeMillis();
         System.err.println(start + " " + end + " " + (end - start));