surekhasaharan commented on a change in pull request #6334: make 0.13 tasks API 
backwards compatible with 0.12  (#6333)
URL: https://github.com/apache/incubator-druid/pull/6334#discussion_r219657962
 
 

 ##########
 File path: api/src/main/java/org/apache/druid/indexer/TaskStatusPlus.java
 ##########
 @@ -42,28 +47,71 @@
   @Nullable
   private final String errorMsg;
 
-  @JsonCreator
   public TaskStatusPlus(
       @JsonProperty("id") String id,
       @JsonProperty("type") @Nullable String type, // nullable for backward 
compatibility
       @JsonProperty("createdTime") DateTime createdTime,
       @JsonProperty("queueInsertionTime") DateTime queueInsertionTime,
-      @JsonProperty("statusCode") @Nullable TaskState state,
+      @JsonProperty("statusCode") @Nullable TaskState statusCode,
+      @JsonProperty("runnerStatusCode") @Nullable RunnerTaskState 
runnerStatusCode,
+      @JsonProperty("duration") @Nullable Long duration,
+      @JsonProperty("location") TaskLocation location,
+      @JsonProperty("dataSource") @Nullable String dataSource, // nullable for 
backward compatibility
+      @JsonProperty("errorMsg") @Nullable String errorMsg
+  )
+  {
+    this(
+        id,
+        type,
+        createdTime,
+        queueInsertionTime,
+        statusCode,
+        statusCode,
+        runnerStatusCode,
+        duration,
+        location,
+        dataSource,
+        errorMsg
+    );
+  }
+
+
+  @JsonCreator
+  private TaskStatusPlus(
+      @JsonProperty("id") String id,
+      @JsonProperty("type") @Nullable String type, // nullable for backward 
compatibility
+      @JsonProperty("createdTime") DateTime createdTime,
+      @JsonProperty("queueInsertionTime") DateTime queueInsertionTime,
+      @JsonProperty("statusCode") @Nullable TaskState statusCode,
+      @Deprecated @JsonProperty("status") @Nullable TaskState status,  // 
present for backwards compatibility
       @JsonProperty("runnerStatusCode") @Nullable RunnerTaskState 
runnerTaskState,
       @JsonProperty("duration") @Nullable Long duration,
       @JsonProperty("location") TaskLocation location,
       @JsonProperty("dataSource") @Nullable String dataSource, // nullable for 
backward compatibility
       @JsonProperty("errorMsg") @Nullable String errorMsg
   )
   {
-    if (state != null && state.isComplete()) {
+    if (statusCode != null && statusCode.isComplete()) {
       Preconditions.checkNotNull(duration, "duration");
     }
     this.id = Preconditions.checkNotNull(id, "id");
     this.type = type;
     this.createdTime = Preconditions.checkNotNull(createdTime, "createdTime");
     this.queueInsertionTime = Preconditions.checkNotNull(queueInsertionTime, 
"queueInsertionTime");
-    this.state = state;
+    //checks for deserialization safety
+    if (statusCode != null && status == null) {
+      this.state = statusCode;
 
 Review comment:
   ok

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