Github user afs commented on a diff in the pull request:
https://github.com/apache/jena/pull/474#discussion_r222233579
--- Diff: jena-jdbc/jena-jdbc-core/pom.xml ---
@@ -39,17 +39,28 @@
<version>3.10.0-SNAPSHOT</version>
</dependency>
- <!-- Jena Driver configures Log4j directly -->
- <dependency>
- <groupId>org.slf4j</groupId>
- <artifactId>slf4j-log4j12</artifactId>
- </dependency>
+ <!-- Jena Driver configures Log4j directly -->
+ <dependency>
+ <groupId>org.slf4j</groupId>
+ <artifactId>slf4j-log4j12</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>log4j</groupId>
+ <artifactId>log4j</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.logging.log4j</groupId>
+ <artifactId>log4j-api</artifactId>
+ </dependency>
+
+ <!-- Intercept direct use of log4j2 -->
+ <dependency>
+ <groupId>org.apache.logging.log4j</groupId>
--- End diff --
I'm unclear here. I tried with JDK10 and had to add the log4j1 dependency
but not the log4j2 dependencies.
In the code I can only find imports of `org.apache.log4j`, which is log4j1,
not `org.apache.logging.log4j` which is log4j2.
Elasticsearch does use log4j2 and Jena adds adapters theer for that.
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