What does it mean by propagating all exceptions in Java

Question

I was told to propagate all exceptions. This sentence means active propagation such like :

public void doSomething() throws SomeException{

try{

    doSomethingThatCanThrowException();

} catch (SomeException e){

   e.addContextInformation(�more info�);
   throw e;  //throw e, or wrap it � see next line.

   //throw new WrappingException(e, �more information�);

}

or passive propagation :

public void doSomething() throws SomeException {

try{

    doSomethingThatCanThrowException();

} finally {
   //clean up � close open resources etc.
}

}

.Also what does propagating all exception mean ?

Cheers