4.x

Issues

• Assertions for java.lang.reflect

  ✨ New Feature

  assertj/assertj#3130 · Filter by author wjbakker opened on Jul 31, 2023 · 4.x
  8

  

• Java Module System assertions

  theme: module system
  assertj/assertj#3521 · Filter by author xenoterracide opened on Jun 26, 2024 · 4.x
  2

• ScanCode not able to extract AssertJ license/copyright data

  status: pending investigation
  assertj/assertj#2944 · Filter by author scordio opened on Feb 4, 2023 · 4.x
  6

  

• Document how to migrate from 3.27 to 4.0

  theme: documentation
  🛠️ Task

  assertj/assertj#3852 · Filter by author scordio opened on Jun 13, 2025 · 4.x
  

• Verify version 4 with popular projects before GA

  🛠️ Task

  assertj/assertj#3860 · Filter by author scordio opened on Jun 17, 2025 · 4.x
  11

• extracting(String) eats all exceptions thrown by property getter in certain cases

  assertj/assertj#3868 · Filter by author doublep opened on Jul 18, 2025 · 4.x
  3

  

• Explicitly declare support for Kotlin 2.1 or greater only

  language: Kotlin
  💥 Breaking

  assertj/assertj#3870 · Filter by author scordio opened on Jul 23, 2025 · 4.x
  1

  

• Merge FactoryBasedAssert classes into their respective counterparts

  💥 Breaking

  assertj/assertj#4098 · Filter by author scordio opened on Jan 10, 2026 · 4.x
  

• Review of unchecked and rawtypes warnings

  ⚡Improvement

  assertj/assertj#4210 · Filter by author scordio opened on Apr 5, 2026 · 4.x

• Add assertThatCode(Callable)

  Unread
  assertj/assertj#2519·scordio opened Mar 8, 2022 · Updated Sep 30, 2026·Draft
  12

• Add Error Prone static analysis

  status: team discussion
  Unread
  assertj/assertj#2634·vlsi opened May 29, 2022 · Updated Sep 30, 2026
  5

• Map additional assertions

  Unread
  assertj/assertj#2681·groov1kk opened Jun 23, 2022 · Updated Sep 30, 2026
  3

• GH-2647 stack trace assertions skeleton base

  Unread
  assertj/assertj#2687·ascopes opened Jun 25, 2022 · Updated Sep 30, 2026
  4

• Add ClassLoader assertions

  Unread
  assertj/assertj#2973·scordio opened Mar 4, 2023 · Updated Sep 30, 2026·Draft
  1

• Add assertions for java.lang.reflect. Fix #3130

  Unread
  assertj/assertj#3131·wjbakker opened Jul 31, 2023 · Updated Sep 30, 2026
  6

  

• Support timeout assertions for lambdas

  assertj/assertj#3637 · Filter by author alkismavridis opened on Oct 16, 2024 · 4.x
  9

  

• Evaluate JSpecify annotations for nullability constraints

  ⚡Improvement

  assertj/assertj#3727 · Filter by author scordio opened on Jan 4, 2025 · 4.x
  14

  

• Add annotation Class navigation method

  Unread
  assertj/assertj#3373·michaelcowan opened Feb 22, 2024 · Updated Sep 19, 2026
  10

  

• Add architecture tests.

  Unread
  assertj/assertj#1754·fduminy opened Jan 12, 2020 · Updated Sep 30, 2026
  27

• Preliminary code to ensure AbstractMapAssert uses correct containsKey…

  status: not ready
  Unread
  assertj/assertj#2433·clouded-minds opened Dec 10, 2021 · Updated Sep 30, 2026
  1

• Evaluate dependency on java-util-diff

  assertj/assertj#3716 · Filter by author scordio opened on Dec 26, 2024 · 4.x
  1

• hasSameTextualContentAs is hanging with text file

  🐛 Bug

  assertj/assertj#2345 · Filter by author cvgaviao opened on Sep 17, 2021 · 4.x
  5

• Assert return value of callable throwing exception

  ⚡Improvement

  assertj/assertj#1652 · Filter by author t-8ch opened on Oct 25, 2019 · 4.x
  7

  

• usingRecursiveComparison() not working when Class implements Iterable

  theme: recursive comparison
  assertj/assertj#2812 · Filter by author linksblackmask opened on Oct 14, 2022 · 4.x
  7

  

• Enable new Enforcer rules that inspect the compiled output

  Unread
  assertj/assertj#4331·scordio opened Jul 20, 2026 · Updated Sep 19, 2026·Draft
  1