Update pom.xml

Author: KosherJava

pom.xml

@@ -124,7 +124,7 @@
         </repository>
     </distributionManagement>
     <properties>
-        <maven.compiler.target>9</maven.compiler.target>
-        <maven.compiler.source>9</maven.compiler.source>
+        <maven.compiler.target>1.9</maven.compiler.target>
+        <maven.compiler.source>1.9</maven.compiler.source>
     </properties>
 </project>