resources.report.rules.pmd.AvoidInstanceofChecksInCatchClause.html Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of sanity4j Show documentation

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.

The newest version!



AvoidInstanceofChecksInCatchClause


AvoidInstanceofChecksInCatchClause
Each caught exception type should be handled in its own catch clause.
      
		
		
		    
    			This rule is defined by the following XPath expression:
    			
    			
        
//CatchStatement/FormalParameter
 /following-sibling::Block//InstanceOfExpression/PrimaryExpression/PrimaryPrefix
  /Name[
   @Image = ./ancestor::Block/preceding-sibling::FormalParameter
    /VariableDeclaratorId/@Image
  ]
    
              
  
		    
		    
	    
	    
        
        
        Example:
            
                    

try { // Avoid this
 // do something
} catch (Exception ee) {
 if (ee instanceof IOException) {
  cleanup();
 }
}
try {  // Prefer this:
 // do something
} catch (IOException ee) {
 cleanup();
}