Questions tagged as 'nullpointerexception'

Tagged questions
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Error to play data from the search screen for registration screen for editing

Gentlemen, I'm having trouble getting the objs from my client search screen, and playing on the registration screen for editing the same. My search screen has a button with a <p:button outcome="/cliente/CadastroCliente.xhtml" icon="ui-in...
asked by 01.03.2018 / 14:54
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NullPointer Exception when inserting data into a key Estressira [closed]

I'm experiencing some problems with inserting data into my Customers table. Specifically with foreign keys fk_telefone_fisico and fk_telefone_juridico . When I register the user and it gives me a NullPointerException , but...
asked by 15.02.2018 / 13:18
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return function json object

I have a function in android that makes the connection to the server and returns me a json, that json is stored in a variable named object. But I have to make this object go to another screen via return but I'm not getting it. function...
asked by 24.01.2018 / 20:15
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Null Context When Generating PDF

I'm starting my studies on Android programming and I'm having a hard time figuring out how to correct the error presented while debugging the app to generate PDF .    E / AndroidRuntime: FATAL EXCEPTION: main                     Process: br....
asked by 03.01.2018 / 15:16
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Error: java.lang.NullPointerException in project using JDBC

Could help me with the error below, this is one, I'm having error in lines 14 of class TestaLista and error in line 32 of class ContatoDao . Exception in thread "main" java.lang.NullPointerException at br.com.caelum.jdbc.dao.Conta...
asked by 15.11.2017 / 19:37
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System.NullReferenceException

There is a webservice that I need to create which needs to have some peculiarities, among them, the information of SoapAction (as below). However, when I place and debug I already get the error when testing the contents of the variable "orderID"...
asked by 13.09.2017 / 14:39
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Null.point.exception when executing method of another class

I'm running this code: run class package aloiexecv2; import java.io.FileNotFoundException; import java.io.IOException; import java.io.RandomAccessFile; /** * * @author root */ public class test { private static Variaveis variaveis...
asked by 01.07.2017 / 23:57
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How to resolve NullPointerException error in android studio 2.3?

I'm running android studio 2.3, and since I updated it, it's giving this error: I would like to know how to revolve this. The android studio is not affected ... it continues working normal, but this is very annoying .. this error always co...
asked by 04.03.2017 / 12:48
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NullPointerException SelectOneMenu [JSF + PRIMEFACES]

In a JSF page about a car shop, first select the car brand and then choose the model. However, when selecting an item from the first menu "Hyundai", it gives NullPointerException and I can not understand. I've tried a lot, I'm a beginner...
asked by 10.01.2017 / 16:51
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Object injected but is null [duplicate]

I have an object that is injected into my converter: package br.com.pokemax.modelo.converter; import javax.faces.component.UIComponent; import javax.faces.context.FacesContext; import javax.faces.convert.Converter; import javax.faces.conver...
asked by 24.11.2016 / 22:16