testcontainers/testcontainers-java

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Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

Stars: 8.7k
Forks: 1.9k
Open beginner issues: 0
Indexed issues: 412
Avg merge: 2d 17h
Merged PRs (30d): 9

Dominant language: Java
License: MIT
Last GitHub push: Sep 9, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted good first issue hacktoberfest

Beginner friendly Everything

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412 issues indexed so far

[Feature]: Gitlab CI Support Open

type/feature

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

testcontainers/testcontainers-java#12078 · 5 comments · 2 reactions · Opened Sep 14, 2026
[Enhancement]: duct-tape is no longer maintained and should be replaced Open

type/enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

testcontainers/testcontainers-java#12077 · 1 comment · 2 reactions · Opened Sep 14, 2026
[Enhancement]: Speed up elasticsearch module CI (22 min vs ~1 min for other modules) Open

type/enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

testcontainers/testcontainers-java#12070 · Opened Sep 9, 2026
[Bug]: Build fails with "Unknown cli flag: --scripts-prepend-node-path" due to outdated Spotless plugin Open

type/bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

testcontainers/testcontainers-java#11997 · 1 comment · Opened Aug 28, 2026
[Feature]: detect WSL Containers (wslc) as a Docker environment on Windows Open

type/feature

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

testcontainers/testcontainers-java#11987 · Opened Aug 27, 2026
[Bug]: PostgreSQLContainer skips the JDBC readiness gate, leaving host-side port reachability unverified Open

Difficulty 3/5 1-2 days Newbie friendliness 75/100

testcontainers/testcontainers-java#11981 · 5 comments · Opened Aug 25, 2026
[Bug]: `withReuse(true)` has a check-then-act race: concurrent starts with the same config create duplicate containers Open

type/bug

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

testcontainers/testcontainers-java#11979 · Opened Aug 25, 2026
[Bug]: com.github.docker-java:docker-java-transport-zerodep pulls in apache httpcomponents which was tagged in CVE-2026-54428 Open

security type/housekeeping

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

testcontainers/testcontainers-java#11973 · 1 comment · Opened Aug 19, 2026
[Enhancement]: Document why singleton containers are required under Spring's test context caching Open

type/enhancement

Difficulty 1/5 Under an hour Newbie friendliness 85/100

testcontainers/testcontainers-java#11967 · Opened Aug 14, 2026
[Bug]: Cannot reuse Selenium BrowserWebDriverContainers under Linux Open

type/bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

testcontainers/testcontainers-java#11941 · Opened Jul 23, 2026
[Bug]: PostgreSQL container intermittently fails to start with "Wait strategy failed. Container is removed" (TimeoutException) in CI environment Open

type/bug

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

testcontainers/testcontainers-java#11860 · 2 comments · 1 reaction · Opened Jun 30, 2026
[Feature]: Stabilize Reusable Containers feature and make it GA Open

type/feature

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

testcontainers/testcontainers-java#11854 · 2 comments · 2 reactions · Opened Jun 25, 2026
[Bug]: DockerDesktopClientProviderStrategy is always applicable Open

type/bug

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

testcontainers/testcontainers-java#11829 · 1 comment · Opened Jun 4, 2026
[Enhancement/Bug*]: Testcontainers does not fall back to linux/amd64 when registry returns missing architecture Open

type/bug

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

testcontainers/testcontainers-java#11782 · 2 comments · Opened May 27, 2026
[Bug]: getFirstMappedPort returns wrong port after adding secondary network Open

type/bug

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

testcontainers/testcontainers-java#11779 · 2 comments · Opened May 20, 2026
[Bug]: GenericContainer.start() and stop() are not thread-safe Open

type/bug

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

testcontainers/testcontainers-java#11719 · 1 comment · Opened Apr 19, 2026
[Bug]: Kafka container fails with 'Container exited with code 126' due to a race between command wait loop and script installation Open

type/bug

Difficulty 4/5 3-5 days Newbie friendliness 56/100

testcontainers/testcontainers-java#11682 · 2 comments · 1 reaction · Opened Apr 10, 2026
[Enhancement]: Ease the invocation of the Artemis CLI Open

type/enhancement

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

testcontainers/testcontainers-java#11589 · 3 comments · Opened Mar 30, 2026
[Enhancement]: cleanup document after removing junit4 support Open

type/enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

testcontainers/testcontainers-java#11578 · Opened Mar 23, 2026
[Bug]: Underlying NullPointerException in ContainerLessJdbcDelegate when using ScriptUtils Open

type/bug

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

testcontainers/testcontainers-java#11565 · 6 comments · Opened Mar 12, 2026
[Bug]: NullPointerException from ResourceReaper in GenericContainer.stop Open

type/bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

testcontainers/testcontainers-java#11492 · 2 comments · Opened Feb 14, 2026
[Bug]: copyFileToContainer retention of uid/gid breaks rootless Docker Open

type/bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

testcontainers/testcontainers-java#11487 · 2 comments · Opened Feb 5, 2026
[Bug]: Running testcontainers temporarily changes global uncaught exception handler Open

type/bug

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

testcontainers/testcontainers-java#11483 · Opened Feb 2, 2026
[Bug]: MalformedChunkCodingException since Update to 1.21.4/2.0.3 Open

type/bug

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

testcontainers/testcontainers-java#11482 · 16 comments · 16 reactions · Opened Feb 2, 2026
[Bug]: LoggedPullImageResultCallback throws java.lang.ArithmeticException: / by zero Open

type/bug

Difficulty 2/5 1-3 hours Newbie friendliness 58/100

testcontainers/testcontainers-java#11416 · 1 comment · 2 reactions · Opened Jan 7, 2026
[Bug]: Oracle XE is not compatible substitute for Oracle Free Open

type/bug

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

testcontainers/testcontainers-java#11372 · 1 comment · Opened Dec 23, 2025
[Bug]: Can't overwrite Docker socket path with 2.0.2 / Podman stopped working Open

type/bug

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

testcontainers/testcontainers-java#11254 · 8 comments · 2 reactions · Opened Dec 1, 2025
[Bug]: TESTCONTAINERS_CHECKS_DISABLE doesn't stop alpine image from being pulled Open

type/bug

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

testcontainers/testcontainers-java#11241 · 1 comment · Opened Nov 24, 2025
[Bug]: shaded jackson databind expects jackson annotations > 2.12 on classpath Open

type/bug

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

testcontainers/testcontainers-java#11236 · 10 comments · 14 reactions · Opened Nov 21, 2025
[Enhancement]: Support the default `GO` batch separator for MSSQL Open

modules/mysql type/enhancement

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

testcontainers/testcontainers-java#11231 · Opened Nov 18, 2025
[Bug]: GenericContainer.getLogs() returns empty when container fails to start Open

type/bug

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

testcontainers/testcontainers-java#11215 · 3 comments · Opened Nov 12, 2025
[Bug]: `ScriptUtils` converts adjacent string literals to invalid syntax Open

type/bug

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

testcontainers/testcontainers-java#11206 · 1 comment · Opened Nov 4, 2025
[Bug]: Error starting container when using DIND in Kubernetes pod Open

type/bug

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

testcontainers/testcontainers-java#11139 · 1 comment · 1 reaction · Opened Oct 31, 2025
[Enhancement]: Deploy relocation artifacts Open

type/enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

testcontainers/testcontainers-java#11122 · 2 comments · 2 reactions · Opened Oct 16, 2025
[Bug]: Inconsistent "As no valid configuration was found, execution cannot continue. " on GitHub Actions runner Open

type/bug

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

testcontainers/testcontainers-java#10788 · 3 comments · 1 reaction · Opened Sep 12, 2025
[Enhancement]: Make it possible to set ``responseTimeout`` Open

type/enhancement

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

testcontainers/testcontainers-java#10725 · 1 comment · Opened Aug 29, 2025
[Bug]: Open

type/bug

Difficulty 1/5 Under an hour Newbie friendliness 52/100

testcontainers/testcontainers-java#10713 · 1 comment · Opened Aug 25, 2025
[Bug]: ResourceReaper.start hangs waiting for ReentrantLock when TLS enabled Open

type/bug

Difficulty 1/5 Under an hour Newbie friendliness 10/100

testcontainers/testcontainers-java#10454 · Opened Jul 7, 2025
[Feature]: Support InfluxDB v3 Open

modules/influx type/feature

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

testcontainers/testcontainers-java#10451 · 1 reaction · Opened Jul 4, 2025
[Bug]: testcontainers does not respect environment variable `DOCKER_HOST` on windows 11 or windows server 2025 Open

type/bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

testcontainers/testcontainers-java#10381 · 3 comments · 1 reaction · Opened Jun 29, 2025
[Bug]: k3s container is unable to start on wsl2 Open

type/bug

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

testcontainers/testcontainers-java#10375 · 1 comment · Opened Jun 27, 2025
[Bug]: dockerConfigFile property file not used Open

type/bug

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

testcontainers/testcontainers-java#10362 · 1 comment · Opened Jun 12, 2025
[Enhancement]: JdbcDatabaseContainer - Improve ``waitUntilContainerStarted`` Open

type/enhancement

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

testcontainers/testcontainers-java#10360 · 1 comment · Opened Jun 11, 2025
[Bug]: [MariaDB] getLivenessCheckPortNumbers incorrectly implemented Open

type/bug

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

testcontainers/testcontainers-java#10359 · 1 comment · Opened Jun 11, 2025
[Bug]: shading causes Gradle failure as jar and test tasks are not properly wired Open

type/bug

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

testcontainers/testcontainers-java#10353 · Opened Jun 6, 2025
[Enhancement]: apply Gradle best practices Open

type/enhancement

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

testcontainers/testcontainers-java#10286 · Opened Jun 1, 2025
[Enhancement]: migrate nullability annotations to jspecify Open

type/enhancement

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

testcontainers/testcontainers-java#10284 · Opened May 31, 2025
[Bug]: Junit5 {BrowserWebDriverContainer with VncRecordingMode.RECORD_FAILING is not recording} Open

type/bug

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

testcontainers/testcontainers-java#10270 · 1 comment · 1 reaction · Opened May 20, 2025
[Bug]: Switch docker-java transport to httpclient5 to avoid Java 24 warning Open

type/bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

testcontainers/testcontainers-java#10257 · 1 reaction · Opened May 7, 2025
[Bug]: Unable to start container with mount as GraalVM native image Open

type/bug

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

testcontainers/testcontainers-java#10191 · 3 comments · Opened Apr 22, 2025

testcontainers/testcontainers-java

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