Add system-rules library in Synapse core module pom
diff --git a/modules/core/pom.xml b/modules/core/pom.xml
index 2eab891..920f640 100644
--- a/modules/core/pom.xml
+++ b/modules/core/pom.xml
@@ -318,5 +318,13 @@
<artifactId>xercesImpl</artifactId>
<scope>test</scope>
</dependency>
+
+ <!-- System Rules for unit testing -->
+ <dependency>
+ <groupId>com.github.stefanbirkner</groupId>
+ <artifactId>system-rules</artifactId>
+ <version>1.19.0</version>
+ <scope>test</scope>
+ </dependency>
</dependencies>
</project>