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1. In general logging is a good idea.
2. Use Commons Logging Slf4j.
3. For debug messages, call if (log.isDebugEnabled()) prior to calling log.debug().
4. The following code is usually bad. There is no need to log exception and re-throw it:

   Code Block
   try { } catch (Exception e) { logger.error(e.getMessage(), e); throw new RuntimeException(e); }

   Either log it, or re-throw.

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In a perfect world all people, who contribute code, use the same IDE with the same formatting preferences which, for example, significantly reduces a number of redundant SVN merges.

1. It should be a good idea to attach a formatter profile for Eclipse that contributors are expected to useAn Eclipse code style is attached to this page: wink-eclipse-codestyle.xml Code contributions may use other format styles but please try to use at least the following rules.
2. Anyway for people, who don't use Eclipse, or want to keep their formatting preferences, let's define some basic rules:
   1. Do not use Tab. For indentation use only spaces. Indentation size is 4 spaces.
   2. Maximum line width: 100 characters.

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