Issues

• Allow a timer summary on Workflow.sleep and Workflow.await with timeout

  enhancement
  temporalio/sdk-java#3108 · Filter by author sangkyoonnam opened on Oct 1, 2026

• Local activity scheduleToClose budget restarts when a timer-backed retry runs on replay

  temporalio/sdk-java#3106 · Filter by author sangkyoonnam opened on Oct 1, 2026

• Warn if the SDK tried to send a payload above a specific size - Java

  temporalio/sdk-java#3059 · Filter by author jmaeagle99 opened on Sep 9, 2026
  

• Promise.get(timeout, unit) throws a misleading TimeoutException when the workflow is canceled

  temporalio/sdk-java#3026 · Filter by author antmendoza opened on Aug 21, 2026
  1

  

• [kotlin] Replaying a workflow history across different compiler versions (e.g. 2.2.0 → 2.4.0) can cause NDE

  temporalio/sdk-java#2989 · Filter by author antmendoza opened on Aug 4, 2026
  3

  

• Retry transient errors in ActivityCompletionClient.heartbeat

  enhancement
  temporalio/sdk-java#2984 · Filter by author dssysolyatin opened on Jul 31, 2026
  

• Manual completion client's recordHeartbeat swallows cancellation, reset and pause exceptions

  temporalio/sdk-java#2983 · Filter by author dssysolyatin opened on Jul 31, 2026
  

• Async.function/Async.procedure with a Kotlin method reference spawns a WorkflowThread per call instead of inlining, as it does the Java equivalent

  temporalio/sdk-java#2981 · Filter by author antmendoza opened on Jul 30, 2026
  2

  

• Jackson3JsonPayloadConverter(JsonMapper) constructor not visible to javac — only present in META-INF/versions/17/

  temporalio/sdk-java#2885 · Filter by author gauravthadani opened on May 20, 2026
  4

• SDK should log when WFT completion takes a long time - Java

  temporalio/sdk-java#2883 · Filter by author jmaeagle99 opened on May 19, 2026
  

• S3 External Storage Driver - Java

  temporalio/sdk-java#2882 · Filter by author jmaeagle99 opened on May 19, 2026
  

• workflowcheck OOM issues on large codebases

  temporalio/sdk-java#2846 · Filter by author robzienert opened on Apr 16, 2026

• Temporal SDK gRPC calls fail with DEADLINE_EXCEEDED after node restart (GraalVM / K8s)

  temporalio/sdk-java#2840 · Filter by author olegdibrov opened on Apr 14, 2026

• SDK should fail workflow task if payloads size it known to be too large - Java

  temporalio/sdk-java#2833 · Filter by author jmaeagle99 opened on Apr 7, 2026
  1

  

• Local activity executor pool exhaustion causes workflow to hang permanently — without possibility to recover without reset

  temporalio/sdk-java#2823 · Filter by author tsurdilo opened on Mar 31, 2026

• [java] Support conflict token retry loop for schedule updates

  temporalio/sdk-java#2809 · Filter by author chris-olszewski opened on Mar 16, 2026
  2

• ProtobufJsonPayloadConverter does not work correctly with shaded artifact

  temporalio/sdk-java#2792 · Filter by author rocketraman opened on Feb 19, 2026
  2

• Several workflowcheck improvement suggestions

  enhancement
  temporalio/sdk-java#2770 · Filter by author cretz opened on Jan 29, 2026
  1

• Maven plugin for workflowcheck

  enhancement
  temporalio/sdk-java#2769 · Filter by author cretz opened on Jan 29, 2026

• Gradle plugin for workflowcheck

  enhancement
  temporalio/sdk-java#2768 · Filter by author cretz opened on Jan 29, 2026

• Tests not passing: TestStatsReporter Flush not flushing

  temporalio/sdk-java#2750 · Filter by author TbirdDuncan opened on Dec 28, 2025
  2

• @WorkflowImpl(workers = "...") should support Spring property placeholders like taskQueues does

  temporalio/sdk-java#2747 · Filter by author karunagoyal opened on Dec 12, 2025

• activity_schedule_to_start_latency reports activity_type unexpectedly

  temporalio/sdk-java#2733 · Filter by author tsurdilo opened on Nov 19, 2025
  1

  

• Allow overriding of the Worker Deployment Version when invoking a Child Workflow

  enhancement
  temporalio/sdk-java#2726 · Filter by author chris-olszewski opened on Nov 12, 2025

• temporal java sdk is using an older version of grpc-netty-shaded with vulnerabilities

  temporalio/sdk-java#2676 · Filter by author susie-oracle opened on Oct 7, 2025
  8