Security fix & upgrade deprecated maven dependency (backport from beta1 PR)

Author: juanjux

native/pom.xml

@@ -7,6 +7,11 @@
     <groupId>tech.sourced</groupId>
     <artifactId>javaparser</artifactId>
     <version>1.0-SNAPSHOT</version>
+         
+    <properties>
+      <maven.compiler.source>1.6</maven.compiler.source>
+      <maven.compiler.target>1.6</maven.compiler.target>
+    </properties>
 
     <distributionManagement>
         <snapshotRepository>
@@ -66,7 +71,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.8.6</version>
+            <version>2.8.11.1</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>