Java 5.0 - Ant/javac

Codes developed before Java 5.0 could be compiled under JDK 1.5. However, it could generate compile warnings. Such as unchecked, deprecated, etc.. Two ways of compile options are suggested:

• javac

  use -Xlint option

  Example:

  
  > javac -Xlint foo.java
  

• Ant

  use -Xlint in compiler argument option

  Example:

  
  <javac srcdir=sources
         destdir=classes>
  
  <compilerarg value="-Xlint">
  </javac>