Add the dependency of slf4j-log4j12 to fix the lack of log4j output
@@ -529,6 +529,10 @@
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
+ <dependency>
+ <groupId>org.slf4j</groupId>
+ <artifactId>slf4j-log4j12</artifactId>
+ </dependency>
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-solrj</artifactId>