diff --git a/hopsworks-IT/src/test/ruby/spec/execution_spec.rb b/hopsworks-IT/src/test/ruby/spec/execution_spec.rb
index 11023a8210..f46164d303 100644
--- a/hopsworks-IT/src/test/ruby/spec/execution_spec.rb
+++ b/hopsworks-IT/src/test/ruby/spec/execution_spec.rb
@@ -189,74 +189,79 @@ def run_job_and_get_logs(project, job_name)
         before :all do
           with_valid_tour_project("spark")
         end
+        before :each do
+          $job_name = "j_#{short_random_id}"
+        end
         after :each do
           clean_jobs(@project[:id])
         end
+        it "should start a job and use default args" do
+          create_sparktour_job(@project, $job_name, type)
+          default_args = json_body[:config][:defaultArgs]
+          start_execution(@project[:id], $job_name)
+          execution_id = json_body[:id]
+          begin
+            get_execution(@project[:id], $job_name, execution_id)
+            expect(json_body[:args]).not_to be_nil
+            expect(default_args).not_to be_nil
+            expect(json_body[:args]).to eq default_args
+          ensure
+            wait_for_execution_completed(@project[:id], $job_name, execution_id, "FINISHED")
+          end
+        end
+        it "should start a job with args 123" do
+          create_sparktour_job(@project, $job_name, type)
+          args = "123"
+          start_execution(@project[:id], $job_name, args: args)
+          execution_id = json_body[:id]
+          begin
+            get_execution(@project[:id], $job_name, execution_id)
+            expect(json_body[:args]).to eq args
+          ensure
+            wait_for_execution_completed(@project[:id], $job_name, execution_id, "FINISHED")
+          end
+        end
+        it "should fail to start a spark job with missing appPath" do
+          create_sparktour_job(@project, $job_name, type)
+          config = json_body[:config]
 
+          create_sparktour_job(@project, $job_name, type, job_conf: config, expected_status: 200)
+          delete_dataset(@project, config[:appPath], datasetType: "?type=DATASET")
+          #start execution
+          start_execution(@project[:id], $job_name, expected_status: 400)
+        end
         it "should fail to start a spark job with missing spark.yarn.dist.files" do
-          $job_name_2 = "demo_job_2_" + type
-          create_sparktour_job(@project, $job_name_2, type)
+          create_sparktour_job(@project, $job_name, type)
           config = json_body[:config]
           config[:'spark.yarn.dist.files'] = "hdfs:///Projects/#{@project[:projectname]}/Resources/iamnothere.txt"
-          create_sparktour_job(@project, $job_name_2, type, job_conf: config, expected_status: 200)
+          create_sparktour_job(@project, $job_name, type, job_conf: config, expected_status: 200)
           #start execution
-          start_execution(@project[:id], $job_name_2, expected_status: 400)
+          start_execution(@project[:id], $job_name, expected_status: 400)
         end
         it "should fail to start a spark job with missing spark.yarn.dist.pyFiles" do
-          $job_name_2 = "demo_job_2_" + type
-          create_sparktour_job(@project, $job_name_2, type)
+          create_sparktour_job(@project, $job_name, type)
           config = json_body[:config]
           config[:'spark.yarn.dist.pyFiles'] = "hdfs:///Projects/#{@project[:projectname]}/Resources/iamnothere.py"
-          create_sparktour_job(@project, $job_name_2, type, job_conf: config, expected_status: 200)
+          create_sparktour_job(@project, $job_name, type, job_conf: config, expected_status: 200)
           #start execution
-          start_execution(@project[:id], $job_name_2, expected_status: 400)
+          start_execution(@project[:id], $job_name, expected_status: 400)
         end
         it "should fail to start a spark job with missing spark.yarn.dist.jars" do
-          $job_name_2 = "demo_job_2_" + type
-          create_sparktour_job(@project, $job_name_2, type)
+          create_sparktour_job(@project, $job_name, type)
           config = json_body[:config]
           config[:'spark.yarn.dist.jars'] = "hdfs:///Projects/#{@project[:projectname]}/Resources/iamnothere.jar"
-          create_sparktour_job(@project, $job_name_2, type, job_conf: config, expected_status: 200)
+          create_sparktour_job(@project, $job_name, type, job_conf: config, expected_status: 200)
           #start execution
-          start_execution(@project[:id], $job_name_2, expected_status: 400)
+          start_execution(@project[:id], $job_name, expected_status: 400)
         end
         it "should fail to start a spark job with missing spark.yarn.dist.archives" do
-          $job_name_2 = "demo_job_2_" + type
-          create_sparktour_job(@project, $job_name_2, type)
+          create_sparktour_job(@project, $job_name, type)
           config = json_body[:config]
           config[:'spark.yarn.dist.archives'] = "hdfs:///Projects/#{@project[:projectname]}/Resources/iamnothere.zip"
-          create_sparktour_job(@project, $job_name_2, type, job_conf: config, expected_status: 200)
+          create_sparktour_job(@project, $job_name, type, job_conf: config, expected_status: 200)
 
           #start execution
-          start_execution(@project[:id], $job_name_2, expected_status: 400)
-        end
-        it "should start a job and use default args" do
-          $job_name_3 = "demo_job_3_" + type
-          create_sparktour_job(@project, $job_name_3, type)
-          default_args = json_body[:config][:defaultArgs]
-          start_execution(@project[:id], $job_name_3)
-          execution_id = json_body[:id]
-          begin
-            get_execution(@project[:id], $job_name_3, execution_id)
-            expect(json_body[:args]).not_to be_nil
-            expect(default_args).not_to be_nil
-            expect(json_body[:args]).to eq default_args
-          ensure
-            wait_for_execution_completed(@project[:id], $job_name_3, execution_id, "FINISHED")
-          end
-        end
-        it "should start a job with args 123" do
-          $job_name_3 = "demo_job_3_" + type
-          create_sparktour_job(@project, $job_name_3, type)
-          args = "123"
-          start_execution(@project[:id], $job_name_3, args: args)
-          execution_id = json_body[:id]
-          begin
-            get_execution(@project[:id], $job_name_3, execution_id)
-            expect(json_body[:args]).to eq args
-          ensure
-            wait_for_execution_completed(@project[:id], $job_name_3, execution_id, "FINISHED")
-          end
+          start_execution(@project[:id], $job_name, expected_status: 400)
         end
       end
       end
diff --git a/hopsworks-api/src/main/java/io/hops/hopsworks/api/jupyter/JupyterService.java b/hopsworks-api/src/main/java/io/hops/hopsworks/api/jupyter/JupyterService.java
index 4e9b257de6..7638a59f3d 100644
--- a/hopsworks-api/src/main/java/io/hops/hopsworks/api/jupyter/JupyterService.java
+++ b/hopsworks-api/src/main/java/io/hops/hopsworks/api/jupyter/JupyterService.java
@@ -334,7 +334,7 @@ public Response startNotebookServer(JupyterSettings jupyterSettings, @Context Ht
 
       //Inspect dependencies
       sparkController
-          .inspectDependencies(project, hopsworksUser, (SparkJobConfiguration) jupyterSettings.getJobConfig());
+          .inspectDependencies(project, hopsworksUser, (SparkJobConfiguration) jupyterSettings.getJobConfig(), false);
       dto = jupyterManager.startJupyterServer(project, hopsworksUser, configSecret, jupyterSettings, allowOrigin);
       jupyterJWTManager.materializeJWT(hopsworksUser, project, jupyterSettings, dto.getCid(), dto.getPort(),
           JUPYTER_JWT_AUD);
diff --git a/hopsworks-common/src/main/java/io/hops/hopsworks/common/jobs/spark/SparkController.java b/hopsworks-common/src/main/java/io/hops/hopsworks/common/jobs/spark/SparkController.java
index 278a7e8149..91f4cbccb1 100644
--- a/hopsworks-common/src/main/java/io/hops/hopsworks/common/jobs/spark/SparkController.java
+++ b/hopsworks-common/src/main/java/io/hops/hopsworks/common/jobs/spark/SparkController.java
@@ -174,7 +174,7 @@ private void sanityCheck(Jobs job, Users user) throws GenericException, ProjectE
       throw new IllegalArgumentException("Path does not point to a .jar, .py or .ipynb file.");
     }
   
-    inspectDependencies(job.getProject(), user, (SparkJobConfiguration) job.getJobConfig());
+    inspectDependencies(job.getProject(), user, (SparkJobConfiguration) job.getJobConfig(), true);
     
   }
   
@@ -214,16 +214,23 @@ public SparkJobConfiguration inspectProgram(SparkJobConfiguration existingConfig
     return sparkConfig;
   }
   
-  public void inspectDependencies(Project project, Users user, SparkJobConfiguration jobConf)
+  public void inspectDependencies(Project project, Users user, SparkJobConfiguration jobConf, boolean isJob)
     throws ProjectException, GenericException {
     DistributedFileSystemOps udfso = null;
     try {
+      if(isJob) {
+        udfso = dfs.getDfsOps(hdfsUsersBean.getHdfsUserName(project, user));
+        if (!udfso.exists(jobConf.getAppPath())) {
+          throw new ProjectException(RESTCodes.ProjectErrorCode.FILE_NOT_FOUND, Level.FINEST,
+                  "Job application file does not exist: " + jobConf.getAppPath());
+        }
+      }
+
       if (!Strings.isNullOrEmpty(jobConf.getArchives())
         || !Strings.isNullOrEmpty(jobConf.getFiles())
         || !Strings.isNullOrEmpty(jobConf.getJars())
         || !Strings.isNullOrEmpty(jobConf.getPyFiles())) {
-        
-        udfso = dfs.getDfsOps(hdfsUsersBean.getHdfsUserName(project, user));
+
         if (!Strings.isNullOrEmpty(jobConf.getArchives())) {
           for (String filePath : jobConf.getArchives().split(",")) {
             if (!Strings.isNullOrEmpty(filePath) && !udfso.exists(filePath)) {