turn on more warnings
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<compilerArgs>
- <arg>-Xlint:rawtypes</arg>
- <arg>-Xlint:unchecked</arg>
- <arg>-Xlint:deprecation</arg>
+ <arg>-Xlint:all</arg>
+ <arg>-Xlint:-serial</arg>
</compilerArgs>
</configuration>
</plugin>
