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  1. What is a NullPointerException, and how do I fix it?

    What are Null Pointer Exceptions (java.lang.NullPointerException) and what causes them? What methods/tools can be used to determine the cause so that you stop the exception from …

  2. How do I avoid checking for nulls in Java? - Stack Overflow

    For those fast to downvote (and not so fast to read documentation) I would like to say that I've never caught a null-pointer exception (NPE) in my life. But this possibility was intentionally …

  3. Что такое Null Pointer Exception и как его исправить?

    Mar 23, 2019 · Что из себя представляет исключение Null Pointer Exception (java.lang.NullPointerException) и почему оно может происходить? Какие методы и …

  4. java - ¿Cuál es la solución a todos los errores NullPointerException ...

    En mi corta experiencia he descubierto que la solución a todos los problemas de java es saber ejecutar un debug con cualquier IDE que estés utilizando sea Eclipse, Netbeans , Android …

  5. How to solve java.lang.NullPointerException error? [duplicate]

    Sep 3, 2015 · Exception in thread "main" java.lang.NullPointerException at AnotherClassLoader.loadClass(test.java:58) at test.main(test.java:30) at …

  6. exception - java.lang.NullPointerException - Stack Overflow

    Jun 1, 2010 · It's only if you try accessing whatever a null reference points to that you get the exception. So calling methods or accessing other instance members of the object is out of the …

  7. What is a NullPointerException, and how do I fix it?

    May 8, 2023 · What are Null Pointer Exceptions (java.lang.NullPointerException) and what causes them? What methods/tools can be used to determine the cause so that you stop the exception …

  8. When is it OK to catch NullPointerException? - Stack Overflow

    Effective java recommends that we shouldn't catch NullPointerException. Is it always right? In many cases of catching NullPointerException, catch body only calls printStackTrace(). If I don't …

  9. A good way to debug nullPointerException - Stack Overflow

    Feb 19, 2017 · So once null pointer exception is thrown, you can check which variable is causing null. Other thing you can do is capture possible null pointer access while you are coding.

  10. java - Is it a bad idea if equals (null) throws NullPointerException ...

    Feb 19, 2017 · In all honesty, I would be pissed if an equals method within its body returns a null pointer exception on purpose. Equals is meant to be used against any sort of object, so it …