Issues

• Replace org.jetbrains:annotations with jspecify for generated Java code

  feature-requestneeds-triage
  aws/jsii#5248 · Filter by author renannprado opened on Oct 1, 2026

• go: runtime type checks for a string | Date parameter miss the "time" import

  bugneeds-triage
  aws/jsii#5246 · Filter by author udondan opened on Oct 1, 2026

• Protocol pipelining via client-allocated object refs (POC: ~17-20% faster synth)

  feature-requestp2
  aws/jsii#5167 · Filter by author mrgrain opened on Jun 16, 2026
  4

• Synth perf: wire protocol is a synchronous ping-pong (~2x headroom); JSON is not the bottleneck — pipeline via client-allocated object refs

  feature-requestp2
  aws/jsii#5166 · Filter by author mrgrain opened on Jun 16, 2026
  3

• Ruby Language Support for jsii

  feature-requestp2
  aws/jsii#5129 · Filter by author omarqureshi opened on May 23, 2026
  9

• Runbook

  effort/mediump1
  aws/jsii#5113 · Filter by author iankhou opened on May 13, 2026

• Add new Python versions to test with

  effort/mediump1
  aws/jsii#5112 · Filter by author iankhou opened on May 13, 2026

• Java: union of arrays produces a compilation failure

  bugeffort/smallneeds-triagep1
  aws/jsii#5087 · Filter by author rix0rrr opened on Apr 23, 2026

• cloudfront: Go documentation examples for optional array fields cause compilation errors

  documentationeffort/mediumlanguage/gop2
  aws/jsii#5036 · Filter by author umekikazuya opened on Jan 31, 2026
  2

• jsii kernel: method lookup logic is extremely sus

  bugp1
  aws/jsii#5028 · Filter by author rix0rrr opened on Jan 23, 2026
  3

• Go: submodules with same name are not resolving imports correctly in pacmak

  needs-triagep1
  aws/jsii#4985 · Filter by author mrgrain opened on Nov 17, 2025

• Java: Jackson-Dependencies 2.19.0-rc2 causing problems

  bugneeds-triagep1
  aws/jsii#4982 · Filter by author michaelmejaeger opened on Nov 13, 2025
  1

• Add --compile flag to jsii-rosetta markdown command

  feature-requestp2
  aws/jsii#4932 · Filter by author pahud opened on Sep 18, 2025

• Spec change breaks main pipeline build

  bugp2
  aws/jsii#4911 · Filter by author rix0rrr opened on Sep 8, 2025

• C#: System.ArgumentNullException: Value cannot be null. (Parameter 'source')

  bugp2
  aws/jsii#4894 · Filter by author rix0rrr opened on Aug 26, 2025

• Cyclic dependency issue observed for Go

  buglanguage/gop2
  aws/jsii#4843 · Filter by author kumsmrit opened on Jun 11, 2025

• Maven: pacmak uses peerDependency instead of dependency/devDependency for Maven dependency

  bugeffort/mediump2
  aws/jsii#4811 · Filter by author j5nb4l opened on Apr 2, 2025
  4

• Set Assembly version in Nuget package

  effort/mediumfeature-requestp2
  aws/jsii#4804 · Filter by author CraigBrownTN opened on Mar 25, 2025
  2

• Feature request: Cache cleanup

  feature-requestp2
  aws/jsii#4774 · Filter by author TrevorBurnham opened on Feb 20, 2025
  2

• aws-lambda-python-alpha: panic: JsiiError: @jsii/kernel.Fault Module '@aws-cdk/aws-lambda-python-alpha' not found

  bugmodule/kernelp2
  aws/jsii#4737 · Filter by author kaykhan opened on Dec 16, 2024
  14

• Disable Python Argument Lifting

  effort/mediumfeature-requestp2
  aws/jsii#4721 · Filter by author rehanvdm opened on Dec 3, 2024
  1

• (aws_cdk): Allow Python Path objects into functions that need paths

  effort/mediumfeature-requestp2
  aws/jsii#4717 · Filter by author InvincibleRMC opened on Nov 20, 2024
  4

• jsii-config produces non working configuration

  bugp1
  aws/jsii#4705 · Filter by author ganeshltimindtree opened on Nov 10, 2024
  10

• Java Transpiled Builder classes to have a method or way to copy the instance

  feature-requestp2
  aws/jsii#4679 · Filter by author bdoyle0182 opened on Oct 22, 2024

• Compiler fails when package name contains dot

  bugp2
  aws/jsii#4651 · Filter by author leevilehtonen opened on Oct 2, 2024