Github user vrozov commented on a diff in the pull request: https://github.com/apache/apex-core/pull/364#discussion_r73437878 --- Diff: engine/src/main/java/com/datatorrent/stram/engine/OperatorContext.java --- @@ -84,12 +87,13 @@ public void setIdleTimeout(long idleTimeout) * @param attributes the value of attributes * @param parentContext */ - public OperatorContext(int id, AttributeMap attributes, Context parentContext) + public OperatorContext(int id, String operatorName, AttributeMap attributes, Context parentContext) { super(attributes, parentContext); this.lastProcessedWindowId = Stateless.WINDOW_ID; this.id = id; this.stateless = super.getValue(OperatorContext.STATELESS); + this.operatorName = Preconditions.checkNotNull(operatorName, "operator name"); --- End diff -- Check for OperatorDeployInfo not null is optional as it will be necessary to dereference OperatorDeployInfo.id and OperatorDeployInfo.name in the OperatorContext constructor, so NullPointerException will be raised anyway. Annotating OperatorDeployInfo parameter as `@NotNull` is good, but we don't follow this practice in other places.
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---