SLF4J / SLF4J-540 [Open] Backward compatibility problem with 1.7.34 update ============================== Here's what changed in this issue in the last few minutes. This issue has been created There is 1 comment. This issue is now assigned to you. View or comment on issue using this link https://jira.qos.ch/browse/SLF4J-540 ============================== Issue created ------------------------------ Archie Cobbs created this issue on 25/Jan/22 5:59 PM Summary: Backward compatibility problem with 1.7.34 update Issue Type: Bug Affects Versions: 1.7.34 Assignee: SLF4J developers list Components: Implementations Created: 25/Jan/22 5:59 PM Environment:    MacOS 12.1 Apache Maven 3.8.4 (9b656c72d54e5bacbed989b64718c159fe39b537) Priority: Major Reporter: Archie Cobbs Severity: normal Description: I have a maven build for which logging during tests used to work. Snippets from pom.xml: {noformat} <properties> ... <slf4j.version>[1.7,1.8)</slf4j.version> ... </properties> ... <dependencies> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> <scope>test</scope> </dependency> ... <dependencies> {noformat} Dependency tree snippet: {noformat} [WARNING] The artifact org.slf4j:slf4j-log4j12:jar:1.7.34 has been relocated to org.slf4j:slf4j-reload4j:jar:1.7.34 ... [INFO] +- org.slf4j:slf4j-api:jar:1.8.0-beta4:compile [INFO] +- org.slf4j:slf4j-reload4j:jar:1.7.34:test [INFO] | \- ch.qos.reload4j:reload4j:jar:1.2.18.3:test {noformat} Nothing has changed in my configuration, but after the 1.7.34 release, logging during tests no longer works and instead I see this: {noformat} [INFO] ------------------------------------------------------- [INFO] T E S T S [INFO] ------------------------------------------------------- [INFO] Running TestSuite SLF4J: No SLF4J providers were found. SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#noProviders for further details. SLF4J: Class path contains SLF4J bindings targeting slf4j-api versions prior to 1.8. SLF4J: Ignoring binding found at [jar:file:/Users/archie/.m2/repository/org/slf4j/slf4j-reload4j/1.7.34/slf4j-reload4j-1.7.34.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#ignoredBindings for an explanation. {noformat} Is this backward-incompatibility expected? FYI I was able to workaround the issue with these changes: {noformat} - <slf4j.version>[1.7,1.8)</slf4j.version> + <slf4j.version>1.7.34</slf4j.version> ... - <artifactId>slf4j-log4j12</artifactId> + <artifactId>slf4j-reload4j</artifactId> {noformat} ============================== 1 comment ------------------------------ Ceki Gülcü on 25/Jan/22 6:01 PM Can you please try 1.7.35? ============================== This message was sent by Atlassian Jira (v8.8.0#808000-sha1:e2c7e59)