Merge pull request #4 from hzchenjianfei/master

fix: update default java.version from 1.6 to 1.8

Author: hzchenjianfei

pom.xml

@@ -31,8 +31,8 @@
     </scm>
 
     <properties>
-        <java.source.version>1.6</java.source.version>
-        <java.target.version>1.6</java.target.version>
+        <java.source.version>1.8</java.source.version>
+        <java.target.version>1.8</java.target.version>
         <project.build.sourceEncoding>${project.encoding}</project.build.sourceEncoding>
         <project.encoding>UTF-8</project.encoding>
     </properties>