When running tests this is sometimes appears in the logs.
It appears to be connected to logging framework, and connected with test containers:
> ./gradlew sdk:dependencies
+--- project :common FAILED
+--- org.jooq:jooq:3.19.7
| \--- io.r2dbc:r2dbc-spi:1.0.0.RELEASE
| \--- org.reactivestreams:reactive-streams:1.0.3
+--- com.zaxxer:HikariCP:6.2.1
| \--- org.slf4j:slf4j-api:1.7.36
+--- org.opensearch.client:opensearch-java:2.9.0
| +--- org.opensearch.client:opensearch-rest-client:2.12.0
| | +--- org.apache.httpcomponents:httpclient:4.5.14
| | | +--- org.apache.httpcomponents:httpcore:4.4.16
| | | +--- commons-logging:commons-logging:1.2
| | | \--- commons-codec:commons-codec:1.11 -> 1.15
| | +--- org.apache.httpcomponents:httpcore:4.4.16
| | +--- org.apache.httpcomponents:httpasyncclient:4.1.5
| | +--- org.apache.httpcomponents:httpcore-nio:4.4.16
| | +--- commons-codec:commons-codec:1.15
| | \--- commons-logging:commons-logging:1.2
| +--- jakarta.json.bind:jakarta.json.bind-api:2.0.0
| +--- com.fasterxml.jackson.core:jackson-core:2.16.1
| | \--- com.fasterxml.jackson:jackson-bom:2.16.1
| | +--- com.fasterxml.jackson.core:jackson-annotations:2.16.1 (c)
| | +--- com.fasterxml.jackson.core:jackson-core:2.16.1 (c)
| | \--- com.fasterxml.jackson.core:jackson-databind:2.16.1 (c)
| +--- com.fasterxml.jackson.core:jackson-databind:2.16.1
| | +--- com.fasterxml.jackson.core:jackson-annotations:2.16.1
| | | \--- com.fasterxml.jackson:jackson-bom:2.16.1 (*)
| | +--- com.fasterxml.jackson.core:jackson-core:2.16.1 (*)
| | \--- com.fasterxml.jackson:jackson-bom:2.16.1 (*)
| +--- org.apache.httpcomponents.client5:httpclient5:5.3
| | +--- org.apache.httpcomponents.core5:httpcore5:5.2.4
| | +--- org.apache.httpcomponents.core5:httpcore5-h2:5.2.4
| | | \--- org.apache.httpcomponents.core5:httpcore5:5.2.4
| | \--- org.slf4j:slf4j-api:1.7.36
| +--- org.apache.httpcomponents.core5:httpcore5:5.2.4
| +--- org.eclipse:yasson:2.0.2
| | +--- jakarta.json.bind:jakarta.json.bind-api:2.0.0
| | +--- jakarta.json:jakarta.json-api:2.0.0 -> 2.1.2
| | \--- org.glassfish:jakarta.json:2.0.0
| +--- com.google.code.findbugs:jsr305:3.0.2
| \--- org.eclipse.parsson:parsson:1.1.4
| \--- jakarta.json:jakarta.json-api:2.1.2
+--- org.opensearch.client:opensearch-rest-client:2.9.0 -> 2.12.0 (*)
+--- org.apache.httpcomponents:httpclient:4.5.13 -> 4.5.14 (*)
+--- org.junit.jupiter:junit-jupiter-api:5.12.0
| +--- org.junit:junit-bom:5.12.0
| | +--- org.junit.jupiter:junit-jupiter-api:5.12.0 (c)
| | +--- org.junit.jupiter:junit-jupiter-engine:5.12.0 (c)
| | +--- org.junit.platform:junit-platform-commons:1.12.0 (c)
| | +--- org.junit.platform:junit-platform-engine:1.12.0 (c)
| | \--- org.junit.platform:junit-platform-launcher:1.12.0 (c)
| +--- org.opentest4j:opentest4j:1.3.0
| \--- org.junit.platform:junit-platform-commons:1.12.0
| \--- org.junit:junit-bom:5.12.0 (*)
+--- org.testcontainers:junit-jupiter:1.20.6
| \--- org.testcontainers:testcontainers:1.20.6
| +--- junit:junit:4.13.2
| | \--- org.hamcrest:hamcrest-core:1.3
| +--- org.slf4j:slf4j-api:1.7.36
| +--- org.apache.commons:commons-compress:1.24.0
| +--- org.rnorth.duct-tape:duct-tape:1.0.8
| | \--- org.jetbrains:annotations:17.0.0
| +--- com.github.docker-java:docker-java-api:3.4.1
| | +--- com.fasterxml.jackson.core:jackson-annotations:2.10.3 -> 2.16.1 (*)
| | \--- org.slf4j:slf4j-api:1.7.30 -> 1.7.36
| \--- com.github.docker-java:docker-java-transport-zerodep:3.4.1
| +--- com.github.docker-java:docker-java-transport:3.4.1
| +--- org.slf4j:slf4j-api:1.7.25 -> 1.7.36
| \--- net.java.dev.jna:jna:5.13.0
+--- org.testcontainers:testcontainers:1.20.6 (*)
+--- org.testcontainers:postgresql:1.20.6
| \--- org.testcontainers:jdbc:1.20.6
| \--- org.testcontainers:database-commons:1.20.6
| \--- org.testcontainers:testcontainers:1.20.6 (*)
+--- org.opensearch:opensearch-testcontainers:2.1.3
| \--- org.testcontainers:testcontainers:1.20.6 (*)
+--- org.junit.jupiter:junit-jupiter-engine:5.12.0
| +--- org.junit:junit-bom:5.12.0 (*)
| +--- org.junit.platform:junit-platform-engine:1.12.0
| | +--- org.junit:junit-bom:5.12.0 (*)
| | +--- org.opentest4j:opentest4j:1.3.0
| | \--- org.junit.platform:junit-platform-commons:1.12.0 (*)
| \--- org.junit.jupiter:junit-jupiter-api:5.12.0 (*)
+--- org.junit.platform:junit-platform-launcher:1.12.0
| +--- org.junit:junit-bom:5.12.0 (*)
| \--- org.junit.platform:junit-platform-engine:1.12.0 (*)
\--- org.postgresql:postgresql:42.7.3
\--- org.checkerframework:checker-qual:3.42.0
testRuntimeOnly - Runtime only dependencies for source set 'test'. (n)
+--- org.junit.jupiter:junit-jupiter-engine:5.12.0 (n)
+--- org.junit.platform:junit-platform-launcher:1.12.0 (n)
\--- org.postgresql:postgresql:42.7.3 (n)
When running tests this is sometimes appears in the logs.
It appears to be connected to logging framework, and connected with test containers: