Fix: Enable extra task fields in Java-SDK (#3009)

* Fix: Enable extra task fields in Java-SDK

* Enables `Start Delay` field for a Task.
* Enables `Optional` field for a Task.

java-sdk/src/main/java/com/netflix/conductor/sdk/workflow/def/tasks/Task.java

@@ -205,6 +205,8 @@ protected final WorkflowTask toWorkflowTask() {
         workflowTask.setWorkflowTaskType(type);
         workflowTask.setDescription(description);
         workflowTask.setInputParameters(input);
+        workflowTask.setStartDelay(startDelay);
+        workflowTask.setOptional(optional);
 
         // Let the sub-classes enrich the workflow task before returning back
         updateWorkflowTask(workflowTask);

java-sdk/src/test/java/com/netflix/conductor/sdk/workflow/def/WorkflowDefTaskTests.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2022 Netflix, Inc.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+package com.netflix.conductor.sdk.workflow.def;
+
+import org.junit.jupiter.api.Test;
+
+import com.netflix.conductor.common.metadata.workflow.WorkflowTask;
+import com.netflix.conductor.sdk.workflow.def.tasks.*;
+import com.netflix.conductor.sdk.workflow.executor.WorkflowExecutor;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class WorkflowDefTaskTests {
+
+    static {
+        WorkflowExecutor.initTaskImplementations();
+    }
+
+    @Test
+    public void testWorkflowDefTaskWithStartDelay() {
+        SimpleTask simpleTask = new SimpleTask("task_name", "task_ref_name");
+        int startDelay = 5;
+
+        simpleTask.setStartDelay(startDelay);
+
+        WorkflowTask workflowTask = simpleTask.getWorkflowDefTasks().get(0);
+
+        assertEquals(simpleTask.getStartDelay(), workflowTask.getStartDelay());
+        assertEquals(startDelay, simpleTask.getStartDelay());
+        assertEquals(startDelay, workflowTask.getStartDelay());
+    }
+
+    @Test
+    public void testWorkflowDefTaskWithOptionalEnabled() {
+        SimpleTask simpleTask = new SimpleTask("task_name", "task_ref_name");
+
+        simpleTask.setOptional(true);
+
+        WorkflowTask workflowTask = simpleTask.getWorkflowDefTasks().get(0);
+
+        assertEquals(simpleTask.getStartDelay(), workflowTask.getStartDelay());
+        assertEquals(true, simpleTask.isOptional());
+        assertEquals(true, workflowTask.isOptional());
+    }
+}