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

Go to download



AvoidInstanceofChecksInCatchClause

AvoidInstanceofChecksInCatchClause

Each caught exception type should be handled in its own catch clause.


    
//CatchStatement/FormalParameter
 /following-sibling::Block//InstanceOfExpression/PrimaryExpression/PrimaryPrefix
  /Name[
   @Image = ./ancestor::Block/preceding-sibling::FormalParameter
    /VariableDeclaratorId/@Image
  ]
    

Example(s):



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