Article:		Custom PMD Rules
Subject:		Few More Rules Pls
Date:		2005-04-11 06:05:45
From:		tcopeland
Response to: Few More Rules Pls
Hi Pravin - Cool, let me post an answer to your post over on the PMD forums: http://sourceforge.net/forum/forum.php?thread_id=1264379&forum_id=188192 Yours, Tom

Showing messages 1 through 2 of 2.

• Null check for an object
  2006-03-21 23:04:26  PravinD [View]
  
  
  please help me in writing the rule for the following scenario:
  
  Before invoking any method of an object, a null check should be done.
  
  Eg:
  
  String str1 = null;
  String str2 = "ASP";
  
  str2 = str1.toUpperCase(); // Which will throw NullPointerException.
  
  So I have to ensure that this line is in the if check. Like,
  
  String str1 = null;
  String str2 = "ASP";
  
  if(str1 != null)
  {
  str2 = str1.toUpperCase();
  }
  
  Any help would be appreciated. Which would be better a Java rule or XPATH rule?
  

• Few More Rules Pls
  2005-04-11 07:27:43  PravinD [View]
  
  
  Oh okie! Shall check the thread in the pmd forums. Once again, Thanks mate!
  
  Regards,
  Pravin. D