[Ws Wiki] Update of "FrontPage/Axis2/CodeQuality" by PaulFremantle

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The following page has been changed by PaulFremantle:
http://wiki.apache.org/ws/FrontPage/Axis2/CodeQuality

New page:
=== Code Quality Principles ===

* No spelling mistakes
 - Use correct (British) English spelling
* Comment code
 - use block comments at the start of the class and before each method
 - try to think about what's obvious and what isn't obvious e.g.
   {{{ 
       /*
       ** Gets the Foo property
       ** [This comment is completely useless unless I've never read ANY Java before]
       */
       public Foo getFoo();

       /* 
       ** The Foo property is used to decide which foobar to use
       ** [This comment is trying to say something more than obvious]
       */
       public void setFoo(Foo foo);
    }}}
 - Leave a blank line before the block comment
 - Don't put author information in code. 
 - If you think people will need to contact you about the code it means you haven't put in enough doc :-)
 - Clear JavaDoc comments for each method and class
 - Interfaces in particular should have clear comments for each method
 - If you can't explain the class or method, maybe you need to refactor
* No warnings or errors in Eclipse/IDEA
 - There should be no import package.*
 - There should be no imports that aren't used
 - There should be no unused local variables
 - Serializable classes need serialVersionUIDs
 - Or better still remove java.io.Serializable unless we are actually using it
 - Don't use static methods on instances (use the class not the object)
* Don't use long lines (e.g. greater than 70 characters)
* Aim to initialize variables where they are defined
* Use curly braces on if, while statements
 - dont use the shortcut if (something) a; else b;
* If the name of an class or method isn't clear rename it
 - if in doubt ask one or two other people 
* Always comment decisions you made or didn't make
 - If you chose one of two options explain why
 - If you failed to do something add a comment {{{// TODO}}} or {{{// FIXME}}} to let other committers know
 -