Best way to handle a NullPointerException coming from a Throwable catch? (Android)

Question

What is the best way to handle a NullPointerException coming from a Throwable catch.

public void run() {
    try{

    }catch (Throwable e){

        // e.getMessage() is equal to null 
        // and sends a NullPointerException
        if (e.getMessage().equals(“something“){

        }
    }
}

Making some research I found here that the JIT compiler will optimize away stack traces in certain exceptions if they happen enough

I thought I can throw an Exception inside the Throwable catch, but it doesn’t look clean.

Thanks!

the best way is to check if the object is actually null. Catch it, is in my opinion, *wrong and dangerous* — Blackbelt, Jul 28 '14 at 13:57

score 2 · Accepted Answer · answered Jul 28 '14 at 13:58

Don't write code that may throw NullPointerException.

public void run() {
    try {

    } catch (Throwable e){

        if (“something“.equals(e.getMessage()) {

        }
    }
}

or

public void run() {
    try {

    } catch (Throwable e){

        if (e.getMessage() != null && e.getMessage().equals(“something“) {

        }
    }
}

Best way to handle a NullPointerException coming from a Throwable catch? (Android)

1 Answers1