nullpointerexception 111

  1. Avoiding != null statements
  2. Is null check needed before calling instanceof?
  3. Which @NotNull Java annotation should I use?
  4. IllegalArgumentException or NullPointerException for a null parameter?
  5. Why is my Spring @Autowired field null?
  6. Why can I throw null in Java?
  7. NullPointerException in Java with no StackTrace
  8. Best explanation for languages without null
  9. What is a NullPointerException, and how do I fix it?
  10. Tricky ternary operator in Java - autoboxing
  11. Why explicitly throw a NullPointerException rather than letting it happen naturally?
  12. Android - How To Override the “Back” button so it doesn't Finish() my Activity?
  13. Java 8 NullPointerException in Collectors.toMap
  14. No Exception while type casting with a null in java
  15. Android. Fragment getActivity() sometimes returns null
  16. Converting a Date object to a calendar object
  17. Booleans, conditional operators and autoboxing
  18. Boolean.valueOf() produces NullPointerException sometimes
  19. Why does String.valueOf(null) throw a NullPointerException?
  20. Null check chain vs catching NullPointerException

  21. NullPointerException accessing views in onCreate()
  22. Eclipse / Android : “Errors running builder 'Android Pre Compiler' on project…”
  23. Why is this not throwing a NullPointerException?
  24. Why do Double.parseDouble(null) and Integer.parseInt(null) throw different exceptions?
  25. Why does int num = Integer.getInteger(“123”) throw NullPointerException?
  26. How to use @Nullable and @Nonnull annotations more effectively?
  27. Can't find @Nullable inside javax.annotation.*
  28. Filter values only if not null using lambda in Java8
  29. Is it a bad idea if equals(null) throws NullPointerException instead?
  30. Android: Pass data(extras) to a fragment
  31. Why comparing Integer with int can throw NullPointerException in Java?
  32. NullPointerException stack trace not available without debug agent
  33. ButterKnife 8.0.1 not working
  34. Selenium checkbox attribute “checked”
  35. NullPointer on toLowerCase but I don't use that method anywhere
  36. Android - NullPointerException on SearchView in Action Bar
  37. hibernate query.list() method is returning empty list instead of null value
  38. NPE while inflating layout (Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference)
  39. How come invoking a (static) method on a null reference doesn't throw NullPointerException?
  40. NullPointerException that doesn't point to any line in my code
  41. Loading image resource
  42. JavaFX Location is not set error message
  43. getActionBar() returns Null (AppCompat-v7 21)
  44. Which @NonNull Java annotation to use
  45. How to solve java.lang.NullPointerException error?
  46. Why static fields are not initialized in time?
  47. Null pointer Exception - findViewById()
  48. Android Api 23 Change Navigation View headerLayout textview
  49. Getting unwanted NullPointerException in ternary operator - Why?
  50. Java conditional operator ?: result type