Code Correctness: null Argument to equals()
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Last revision (mm/dd/yy): 04/7/2009
The expression obj.equals(null) should always be false.
The program uses the equals() method to compare an object with null. The contract of the equals() method requires this comparison to always return false.
Related Technical Impacts
- Sun JavaDoc for Object. http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html#equals(java.lang.Object)