[MDEP-585] - Upgrade plexus-archiver to 3.5.
 - Required upgrade of JDK 7 minimum.
 - Upgrade of plexus-io to 3.0.0 is also necessary.
diff --git a/pom.xml b/pom.xml
index d2152a2..bc1b732 100644
--- a/pom.xml
+++ b/pom.xml
@@ -89,6 +89,7 @@
     <mavenVersion>3.0</mavenVersion>
     <doxiaVersion>1.4</doxiaVersion>
     <pluginTestingVersion>2.1</pluginTestingVersion>
+    <javaVersion>7</javaVersion>
   </properties>
 
   <dependencies>
@@ -178,7 +179,7 @@
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-archiver</artifactId>
-      <version>3.4</version>
+      <version>3.5</version>
     </dependency>
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
@@ -199,7 +200,7 @@
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-io</artifactId>
-      <version>2.4</version>
+      <version>3.0.0</version>
     </dependency>
 
     <!-- shared -->