Details
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Bug
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Resolution: Fixed
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Medium
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None
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None
Description
If something (for example a Bamboo plugin) declares a dependency on bamboo-web 2.3-SNAPSHOT, Bamboo web will bring in conflicting versions of slf4j components:
\- com.atlassian.bamboo:atlassian-bamboo-web:jar:2.3-SNAPSHOT:compile +- com.atlassian.bamboo:atlassian-bamboo-core:jar:2.3-SNAPSHOT:compile | \- com.atlassian.bamboo:atlassian-bamboo-api:jar:2.3-SNAPSHOT:compile | +- org.slf4j:slf4j-log4j12:jar:1.5.6:compile | \- org.slf4j:jcl-over-slf4j:jar:1.5.6:compile \- com.atlassian.profiling:atlassian-profiling:jar:1.8:compile \- org.slf4j:slf4j-api:jar:1.4.3:compile
As you can see, 1.4.3 API is imported while the implementation is 1.5.6. This causes the following error when trying to run jwebunit tests:
java.lang.IllegalAccessError: tried to access field org.slf4j.impl.StaticLoggerBinder.SINGLETON from class org.slf4j.LoggerFactory at org.slf4j.LoggerFactory.<clinit>(LoggerFactory.java:60) at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:155)
and is very strongly warned against by the slf4j FAQs.
Plugins depending on bamboo web can work around this issue by adding the following to their pom:
<dependencyManagement> <dependencies> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.5.6</version> </dependency> </dependencies> </dependencyManagement>
But really, this should be resolved at the bamboo web level.