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Sanity4J was created to simplify running multiple static code analysis tools on the Java projects. It provides a single entry point to run all the selected tools and produce a consolidated report, which presents all findings in an easily accessible manner.

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NullAssignment

NullAssignment

Assigning a “null” to a variable (outside of its declaration) is usually bad form. Sometimes, this type of assignment is an indication that the programmer doesn’t completely understand what is going on in the code.
NOTE: This sort of assignment may used in some cases to dereference objects and encourage garbage collection.
This rule is defined by the following Java class: net.sourceforge.pmd.lang.java.rule.controversial.NullAssignmentRule
Example(s):


 
public void bar() {
  Object x = null; // this is OK
  x = new Object();
     // big, complex piece of code here
  x = null; // this is not required
     // big, complex piece of code here
}