TIOBE - Java Coding Standard

Rule: Design30

Synopsis:	An instanceof check is being performed on the caught exception. Create a separate catch clause for this exception type
Language:	Java
Severity Level:	3
Category:	Design

Description:

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

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