public String getErrorCode() {
        return this.errorCode;
    }
<p>
The error code that indicates why the target addition failed. If the value is
<code>ConcurrentModificationException</code>, too many requests were made at the same time.
</p>

@return The error code that indicates why the target addition failed. If the value is
        <code>ConcurrentModificationException</code>, too many requests were made at the same time.
aws-java-sdk-eventbridge/src/main/java/com/amazonaws/services/eventbridge/model/PutTargetsResultEntry.java