Top "Nullpointerexception" questions

Glassfish server does not start. NullPointeException

I just downloaded the GlassFish 5.0 archive - Full Platform, unzipped it, I run it through the command line. asadmin start-domain …

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Which @NonNull Java annotation to use

What is the best 'NonNull' annotation? "Best" in the sense of Standard way e.g. future proofness (e.g. support …

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How to fix the Findbugs issue "Null value is guaranteed to be dereferenced" NP_GUARANTEED_DEREF

Hi I have got some code that is reported as having the NP_GUARANTEED_DEREF issue by Findbugs. Now looking …

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NullPointer Exception when calling method from a difference class

JAVA- Hi, I am writing a minesweeper program (first biggie) and am really stuck. The program itself is comprised of 2 …

java nullpointerexception method-call

NullPointerException while trying to access @Inject bean in constructor

I've a session scoped bean: @Named @SessionScoped public class SessionBean implements Serializable { private String someProperty; public String getSomeProperty() { return someProperty; } } …

jsf constructor nullpointerexception cdi managed-bean

Android Api 23 Change Navigation View headerLayout textview

I am testing the Navigation Drawer sample project in android and i have a problem setting the text in navigation …

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Android, How to use readTypedList method correctly in a Parcelable class?

I have two Activities, in the first one, I instanciate an ArrayList of Object myObject. In the second activity, i …

java android arraylist nullpointerexception parcelable

NPE while inflating layout (Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference)

I keep getting a java.lang.NullPointerException when I try to use ScrollView in an activity. The weird thing is …

android nullpointerexception layout-inflater android-inflate inflate-exception

Android TabHost.addTab -> Null pointer exception

Here is my code: public class Main extends Activity { @Override public void onCreate(Bundle savedInstanceState) { TabHost tabHost = new TabHost(this); …

android nullpointerexception android-tabhost

IllegalStateException: Fragment <ThisFragment> is not currently in the FragmentManager

I have trouble of tracing the cause of the crash in my app. I have a fragment that displays a …

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