addressed comments

Author: pratapaditya04

gobblin-service/src/test/java/org/apache/gobblin/service/modules/orchestration/proc/DagProcUtilsTest.java

@@ -46,6 +46,7 @@
 import org.apache.gobblin.service.modules.spec.JobExecutionPlan;
 import org.apache.gobblin.util.ConfigUtils;
 import org.mockito.Mockito;
+import org.testcontainers.shaded.org.apache.commons.lang3.StringUtils;
 import org.testng.Assert;
 import org.testng.annotations.BeforeMethod;
 import org.testng.annotations.Test;
@@ -92,8 +93,8 @@ public void testGaaSJobExecutionIdInjection() throws URISyntaxException, IOExcep
     DagProcUtils.submitNextNodes(dagManagementStateStore, dag, dagId);
     // Assertion to test that GaaS job execution Id has been successfully injected
     for(JobExecutionPlan jobExecutionPlan : jobExecutionPlans) {
-      final String gaasJobExecutionId = ConfigUtils.getString(jobExecutionPlan.getJobSpec().getConfig(),ConfigurationKeys.GAAS_JOB_EXEC_ID,"");
-      final Long gaasJobExecutionIdHash = Long.parseLong(ConfigUtils.getString(jobExecutionPlan.getJobSpec().getConfig(),ConfigurationKeys.GAAS_JOB_EXEC_ID_HASH,""));
+      final String gaasJobExecutionId = ConfigUtils.getString(jobExecutionPlan.getJobSpec().getConfig(), ConfigurationKeys.GAAS_JOB_EXEC_ID, StringUtils.EMPTY);
+      final Long gaasJobExecutionIdHash = Long.parseLong(ConfigUtils.getString(jobExecutionPlan.getJobSpec().getConfig(), ConfigurationKeys.GAAS_JOB_EXEC_ID_HASH, StringUtils.EMPTY));
 
       Assert.assertNotNull(gaasJobExecutionId);
       Assert.assertEquals(gaasJobExecutionId.length(), 36);

gobblin-utility/src/main/java/org/apache/gobblin/util/AzkabanTags.java

@@ -38,7 +38,7 @@ public class AzkabanTags {
       .put(ConfigurationKeys.AZKABAN_FLOW_ID, "azkabanFlowId")
       .put(ConfigurationKeys.AZKABAN_JOB_ID, "azkabanJobId")
       .put(ConfigurationKeys.AZKABAN_EXEC_ID, "azkabanExecId")
-      .put(ConfigurationKeys.GAAS_JOB_EXEC_ID,"gaasJobExecId")
+      .put(ConfigurationKeys.GAAS_JOB_EXEC_ID, "gaasJobExecId")
       .put(ConfigurationKeys.AZKABAN_URL, "azkabanURL")
       .put(ConfigurationKeys.AZKABAN_FLOW_URL, "azkabanFlowURL")
       .put(ConfigurationKeys.AZKABAN_JOB_URL, "azkabanJobURL")