[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[],[],null,["# Interface AckReplyConsumer (1.141.2)\n\nVersion latestkeyboard_arrow_down\n\n- [1.141.2 (latest)](/java/docs/reference/google-cloud-pubsub/latest/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.141.1](/java/docs/reference/google-cloud-pubsub/1.141.1/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.140.2](/java/docs/reference/google-cloud-pubsub/1.140.2/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.139.4](/java/docs/reference/google-cloud-pubsub/1.139.4/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.138.0](/java/docs/reference/google-cloud-pubsub/1.138.0/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.137.1](/java/docs/reference/google-cloud-pubsub/1.137.1/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.136.1](/java/docs/reference/google-cloud-pubsub/1.136.1/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.135.0](/java/docs/reference/google-cloud-pubsub/1.135.0/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.134.2](/java/docs/reference/google-cloud-pubsub/1.134.2/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.133.1](/java/docs/reference/google-cloud-pubsub/1.133.1/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.132.2](/java/docs/reference/google-cloud-pubsub/1.132.2/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.131.0](/java/docs/reference/google-cloud-pubsub/1.131.0/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.130.0](/java/docs/reference/google-cloud-pubsub/1.130.0/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.129.6](/java/docs/reference/google-cloud-pubsub/1.129.6/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.127.3](/java/docs/reference/google-cloud-pubsub/1.127.3/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.126.6](/java/docs/reference/google-cloud-pubsub/1.126.6/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.125.13](/java/docs/reference/google-cloud-pubsub/1.125.13/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.123.18](/java/docs/reference/google-cloud-pubsub/1.123.18/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.122.2](/java/docs/reference/google-cloud-pubsub/1.122.2/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.121.1](/java/docs/reference/google-cloud-pubsub/1.121.1/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.120.24](/java/docs/reference/google-cloud-pubsub/1.120.24/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.119.1](/java/docs/reference/google-cloud-pubsub/1.119.1/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.118.0](/java/docs/reference/google-cloud-pubsub/1.118.0/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.117.0](/java/docs/reference/google-cloud-pubsub/1.117.0/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.116.4](/java/docs/reference/google-cloud-pubsub/1.116.4/com.google.cloud.pubsub.v1.AckReplyConsumer)\n- [1.115.5](/java/docs/reference/google-cloud-pubsub/1.115.5/com.google.cloud.pubsub.v1.AckReplyConsumer) \n\n public interface AckReplyConsumer\n\nAccepts a reply, sending it to the service.\n\nMethods\n-------\n\n### ack()\n\n public abstract void ack()\n\nAcknowledges that the message has been successfully processed. The service will not send the\nmessage again.\n\n### nack()\n\n public abstract void nack()\n\nSignals that the message has not been successfully processed. The service should resend the\nmessage."]]