temporalio/sdk-java

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Temporal Java SDK

Stars: 433
Forks: 249
Open beginner issues: 0
Indexed issues: 214
Avg merge: 5d 6h
Merged PRs (30d): 26

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue

Beginner friendly Everything

Open All

214 open issues indexed

inconsistency on MaximumAttempts attribute between local activities and "normal" activities Open

good first issue

Difficulty 3/5 1-2 days Newbie friendliness 52/100

temporalio/sdk-java#1727 · 1 comment · Opened Mar 31, 2023
WorkerOptions should enforce an amount of executors to be not less than an amount of pollers Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

temporalio/sdk-java#1715 · 1 reaction · Opened Mar 24, 2023
ServiceWorkflowHistoryIterator should eagerly request the next page Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 42/100

temporalio/sdk-java#1707 · 1 comment · Opened Mar 21, 2023
WorkflowImplementationOptions.FailWorkflowExceptionTypes ignored for service failures Open

wontfix

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1698 · 7 comments · Opened Mar 14, 2023
Support listWorkflowExecutions in test server Open

enhancement test server

Difficulty 3/5 1-2 days Newbie friendliness 42/100

temporalio/sdk-java#1693 · 5 comments · 18 reactions · Opened Mar 9, 2023
Exceptions thrown from workflow executor code shouldn't be subject to failWorkflowExceptionTypes Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1681 · 2 comments · Opened Feb 28, 2023
Subsequent MutableSideEffect calls inside one Workflow Task may explode with non-determinism on replay Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1668 · Opened Feb 22, 2023
[Bug] Cancelling an activity results in `FailedPrecondition: ACTIVITY_UNKNOWN` error on time skipping server Open

bug test server

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#2391 · 2 comments · 1 reaction · Opened Feb 17, 2023
ContextPropagator redesign Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

temporalio/sdk-java#1644 · Opened Feb 8, 2023
Add history pagination to Test Server Open

enhancement test server

Difficulty 4/5 3-5 days Newbie friendliness 45/100

temporalio/sdk-java#1642 · Opened Feb 6, 2023
Allow setting *additional* memo values in ContinueAsNewOptions Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 48/100

temporalio/sdk-java#1621 · Opened Jan 25, 2023
Test server with child workflow and signal is timing out when attemping unlock-with-sleep Open

test server

Difficulty 4/5 3-5 days Newbie friendliness 38/100

temporalio/sdk-java#1618 · Opened Jan 25, 2023
Opt-in to having stack trace query use custom data converter Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

temporalio/sdk-java#1586 · Opened Jan 5, 2023
[Feature Request] Improving replay issue for Timers Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1579 · Opened Dec 22, 2022
Local Activity Execution should stop making attempts if Workflow Task or subsequent heartbeat fails Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

temporalio/sdk-java#1563 · Opened Dec 8, 2022
Metric scope for workflow instance should ignore metrics written after a destruction of the instance is requested Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1549 · Opened Nov 30, 2022
Test service time skipping broken in a child workflow Open

bug test server

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1540 · 3 comments · Opened Nov 26, 2022
Test service continue-as-new implementation is not atomic Open

bug test server

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1538 · Opened Nov 26, 2022
Improve diagnostic message printed by TestWorkflowRule on timeout. Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1535 · Opened Nov 26, 2022
Declaring ActivityStub using annotation instead of newActivityStub Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

temporalio/sdk-java#1531 · 2 comments · Opened Nov 23, 2022
State machine exception during termination Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1457 · Opened Sep 25, 2022
Reflect activity vs local activity difference in tracing spans Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

temporalio/sdk-java#1440 · Opened Sep 16, 2022
Test server does not error on already-started child workflow Open

bug test server

Difficulty 3/5 1-2 days Newbie friendliness 35/100

temporalio/sdk-java#1429 · Opened Sep 14, 2022
Test server timeouts improperly set to 10 years when not user set Open

test server

Difficulty 4/5 3-5 days Newbie friendliness 45/100

temporalio/sdk-java#1426 · 6 comments · Opened Sep 14, 2022
Deduplicate getResultAsync calls inside WorkflowClient or WorkflowStub Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

temporalio/sdk-java#1413 · Opened Sep 10, 2022
Test Server should add warning logging if no workers listen on a task queue with tasks Open

enhancement test server

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1403 · Opened Aug 31, 2022
Predictable log statement when test server is ready for use Open

enhancement test server

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1377 · Opened Aug 18, 2022
External workflow signal from a workflow code throws incorrect exceptions Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 50/100

temporalio/sdk-java#1374 · 1 comment · Opened Aug 18, 2022
Child Workflow creation API should allow user to specify a custom data converter Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 39/100

temporalio/sdk-java#1373 · 1 comment · Opened Aug 17, 2022
Add CI testing for the native test server Open

test server

Difficulty 3/5 1-2 days Newbie friendliness 35/100

temporalio/sdk-java#1358 · 1 reaction · Opened Aug 10, 2022
Unit Test for ActivityCompletionClient methods that don't use taskToken Open

Difficulty 3/5 1-2 days Newbie friendliness 40/100

temporalio/sdk-java#1354 · Opened Aug 10, 2022
Await on Local Activities shouldn't occupy workflow executor thread Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

temporalio/sdk-java#1346 · 1 reaction · Opened Aug 4, 2022
Cancelation of Local Activities Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1303 · 2 comments · Opened Jul 11, 2022
Workflow execution with Workflow.await(condition) times out in unit tests with enabled time skipping Open

bug test server

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1291 · 3 comments · 1 reaction · Opened Jun 28, 2022
provide an option to print trace-id and span-id on java-sdk Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

temporalio/sdk-java#1273 · Opened Jun 21, 2022
Add unit test covering scenario of Server outage during Worker sending workflow task execution result Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

temporalio/sdk-java#1266 · Opened Jun 17, 2022
Make activity heartbeats more robust to network outages by retrying them Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1258 · Opened Jun 9, 2022
Cached activity heartbeat prevents worker from a quick shutdown Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

temporalio/sdk-java#1257 · Opened Jun 9, 2022
Query is not picked up by the worker executing local activity for more than a minute Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1246 · 1 comment · 1 reaction · Opened Jun 2, 2022
Revisit history pagination Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1242 · Opened Jun 1, 2022
Provide default implementation of Prometheus scrape endpoint Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

temporalio/sdk-java#1234 · Opened May 24, 2022
Log activity thread stack trace if it times out or fails to heartbeat Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1216 · Opened May 16, 2022
Cancel long poll if a Future returned from getResultAsync is not referenced anymore by the user code Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

temporalio/sdk-java#1212 · Opened May 13, 2022
MDC context logging properties not propagating inside promise.handle Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

temporalio/sdk-java#1211 · 1 reaction · Opened May 12, 2022
Revisit continue-as-new that doesn't carry over some attributes of parent run if not set explicitly Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1201 · 1 comment · 1 reaction · Opened May 11, 2022
Allow contributions of tags of root worker metricsscope per workflow execution Open

wontfix

Difficulty 5/5 Over a week Newbie friendliness 25/100

temporalio/sdk-java#1163 · 1 comment · 3 reactions · Opened Apr 21, 2022
Deadlock Detector unexpectedly firing on a cold JVM Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

temporalio/sdk-java#1141 · 1 reaction · Opened Apr 14, 2022
TestWorkflowEnvironment - add support for filtering for ListOpenWorkflowExecutions Open

enhancement test server

Difficulty 3/5 1-2 days Newbie friendliness 45/100

temporalio/sdk-java#1139 · 1 comment · Opened Apr 12, 2022
Test server does not decrement time skipping lock for outstanding activities on workflow completion Open

bug test server

Difficulty 3/5 1-2 days Newbie friendliness 35/100

temporalio/sdk-java#1138 · 1 comment · Opened Apr 12, 2022
Workflow metadata resolution code registers an overridden method from parent class as a second query Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

temporalio/sdk-java#1107 · 1 comment · Opened Mar 31, 2022

temporalio/sdk-java

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