Category "java"

add a serial number while performing iteration in thymeleaf

I have a senario in which i must perform iteration on a list and display result as a grid.Also include serial number in it. Now what I did for serial number is

What could be causing SMTPSenderFailedException: 501 5.1.7 Invalid address using java mail?

Unfortunately, this is at a customer site, so we can't debug. Apparently it's been verified that both the to and from emails are valid. They are apparently usin

How to create a new camera source in Java?

I am trying to create a new camera source or driver in java. There is a similar question based on python. What am trying to do is that I want a new camera sourc

How to display Arabic strings from RTL in PDF generated using itext 7 API?

I'm struggling with this problem for hours now but I can't find a way out, the problem is that: I wrote a program that generate a pdf file using itext version

Java ArrayList Copy Changing Original Value

I have copied an ArrayList as I want to keep original values of my source Arraylist. If I change first item of my source ArrayList, it automatically changes fir

Enable HTTP2 with Tomcat in Spring Boot

Tomcat 8.5, which will be the default in Spring Boot 1.4, supports HTTP/2. How can HTTP/2 be enabled in a Spring Boot application?

Print loop output horizontally?

Hey guys I have to write a program for class that asks me to produce a bar graph based on how many cars a salesperson sold for the month. An example is this: P

Java: Unable to locate status button

I am working on a feature file in Selenium and I am having issues trying to read the status button. If the status symbol is set to "Invited," it is supposed to

Java: ZipFile using Path

I have a Path to zip file on virtual filesystem (jimfs) and I need to open this zip file using ZipFile. But there is no constructor in ZipFile to get Path as

Add a Flow in OpenDaylight using Java API

I'm a newbie in opendaylight developing using the java api. I'm trying to add a simple flow but I can't do it, maybe I can't understand well the documentation.

How to enable auditing for MongoDB via Annotations in Spring

I wanted to enable some auditing features, such as @CreatedDate. I am not using Spring xml configuration file, so I cannot add mongo:auditing to Spring configur

Named Entity Graph Sub-Subgraph

I am new to JPA 2.1 and started using only recently Named Entity Graphs. For my project I am mapping the following relation in JPA 2.1: Order -> OrderDetail

Not a direct subclass of GenericTypeIndicator: class com.google.firebase.database.GenericTypeIndicator

I have Firebase App with Realtime Database, I have db.json as { "brs" : { "route": [ { "routeDestination": "DDDD1", "routeOrigin":

EJB 3.1 Binding does not work on Websphere Application Server

I want to call a local Stateless-EJB from on ejb project from another singleton-EJB in another ejb-project. Both EJB-Projects are in the same ear file. The Appl

how to call the start activity from one java class

Is it possible to start an Activty using an Intent in a general java class which extends Activity? import android.os.Bundle; import android.view.View; impor

JPA equivalent of Hibernate's @Generated(GenerationTime.ALWAYS)

When certain non key fields of a entity are generated in the database (for instance, by triggers) a call to persist will not bring back values that the database

What means 1L serialVersionUID? When could I use this default value 1L?

There are 3 ways to define the serialVersionUID : 1. private static final long serialVersionUID = 1L; (Default) 2. private static final long serialVersionUID =

Don't spring-boot-starter-web and spring-boot-starter-webflux work together?

When I start to learn the spring-webflux, I have the question about this component. I built a simple project, using maven to manage it. I addded the dependencie

Lombok not working on Eclipse Mars on Mac 10.11.3

I tried all the solutions given here on Stackoverflow regarding the same but it still won't work. Eclipse still shows compile errors on getter/setters. Steps i

JOptionPane with switch cases

Well, this code actually run but ended up with wrong output (specifically in "Randoms" cases) Note: it has a random generator for a random result or output I