What is a suppressed exception?

Question

A comment (by user soc) on an answer to a question about tail call optimisation mentioned that Java 7 has a new feature called \"suppressed exceptions\", because of \"the ad

Answer 1

Concedering the code below:

public class MultipleExceptionsExample {

   static class IOManip implements Closeable{
       @Override
       public void close() {
           throw new RuntimeException("from IOManip.close");
       }
   }

   public static void main(String[] args) {
       try(IOManip ioManip = new IOManip()){
           throw new RuntimeException("from try!");
       }catch(Exception e){
           throw new RuntimeException("from catch!");
       }finally{
           throw new RuntimeException("from finally!");
       }
   }
}

With all lines you will get: java.lang.RuntimeException: from finally!

Removing finally block you will get: java.lang.RuntimeException: from catch!

Removing catch block you will get:

Exception in thread "main" java.lang.RuntimeException: from try!
    Suppressed: java.lang.RuntimeException: from IOManip.close