Java Assertion in Try with multiple catchs

Question

Scenario:

class Assert {
    public static void main(String []args) {
        try {
            assert false;
        }
        catch (RuntimeException re) {
            System.out.println("In the handler of RuntimeException");
        }
        catch (Exception e) {
            System.out.println("In the handler of Exception");
        }
        catch (Error ae) {
            System.out.println("In the handler of Error");
        }
        catch (Throwable t) {
            System.out.println("In the handler of Throwable");
        }
    }
}

I am expecting 'In the handler of Error' because AssertionError is subclass of Error but it doesn't show anything and terminate normal. after then to check the out put I added this one catch handler before Error handler .

catch (AssertionError t) {
    System.out.println("In the handler of Throwable");
}

in know it's not a good practice to catch Error but if we does not need to catch why the program was not crashed it terminate normally?

morgano · Accepted Answer · 2015-05-02 09:51:48Z

2

By default assertions are disabled, add -ea in the command line when you execute your code with java:

java -ea Assert

answered May 2, 2015 at 9:51

morgano

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