Merge branch 'stable-3.4' into stable-3.5

* stable-3.4:
  Set version to v3.4.4.2
  Set source/target release based on Gerrit v3.4 specs

Change-Id: Ie57948bc695925590719797a4370c51bb50d17f6
diff --git a/pom.xml b/pom.xml
index 7fd4fa6..dec7697 100644
--- a/pom.xml
+++ b/pom.xml
@@ -81,8 +81,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.6.1</version>
                 <configuration>
-                    <source>${java.specification.version}</source>
-                    <target>${java.specification.version}</target>
+                    <source>1.8</source>
+                    <target>11</target>
                 </configuration>
             </plugin>
             <plugin>