When I inject an object into the class it returns null , it does not seem to be instantiated.
Exception in thread "main" java.lang.NullPointerException
at com.fercosmig.util.db.PopulaTabelaUsuario.main(PopulaTabelaUsuario.java:37)...
Hello
I am creating a very simple test application, using JPA, Wildfly as an application server and Oracle Database 11g Express Edition as a database.
The intent of the Test class is to run a People query. Whenever I run the Test class, th...
As soon as I create a Maven project with the "war" packaging, it gives the following error:
Description Resource Path Location Type web.xml is missing and <failOnMissingWebXml> is set to true pom.xml
I'm using the Spring IDE Ide...
How to make a loop to scan an array and bring its data one by one and fill in the input?
The image illustrates well the problem ... I need For For to pass several times through the method and get the data from it and fill in the input and fol...
I am putting together a generic form for registration of individuals and legal entities and the definition starts from two RadioButton's that changes the fields, after they are filled they are sent to a Servlet and then to a DAO c...
I'm studying the Jsoup library and I took the most basic example of the site and tried to build something simple, but I have this error, which does not allow me to execute the code:
Default constructor can not handle exception type IOExcep...
I can not get the value of my selectOneRadio , it comes as null :
<p:dataTable id="exibePerguntas" var="questao" paginator="true"
rowsPerPageTemplate="2,3,5,10,12" paginatorPosition="bottom"
value...
I'm not able to run my algorithms in Java through the Windows 8.1 terminal.
It happens that always gives a class error not found, I already put the .class files together with .java and still can not find.
What do I do to resolve?
Here a...
In all the examples I saw in the code below, the normal occurrence was when the xhtml page was started creating a new client-type object. Through the values entered in the inputs, set the attributes of this object and the commandbutton could use...