compile src/main for java 1.6 and src/test for java 1.7

(only to convince m2e use java 1.7 as project execution env. for tests)

Author: basinilya

pom.xml

@@ -63,7 +63,8 @@
     </distributionManagement>
 
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>1.6</java.version>
+        <java.testversion>1.7</java.testversion>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <version.jackson>2.8.7</version.jackson>
         <version.slf4j>1.7.25</version.slf4j>
@@ -206,6 +207,19 @@
                     <source>${java.version}</source>
                     <target>${java.version}</target>
                 </configuration>
+                <executions>
+                    <execution>
+                        <id>test-compile</id>
+                        <phase>process-test-sources</phase>
+                        <goals>
+                            <goal>testCompile</goal>
+                        </goals>
+                        <configuration>
+                            <source>${java.testversion}</source>
+                            <target>${java.testversion}</target>
+                        </configuration>
+                    </execution>
+                </executions>
             </plugin>
 
             <plugin>