Java Enterprise Edition (JavaEE) is a platform for enterprise computing for Java.

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How to deal with different configurations with non-overlapping properties?

I am working on a project based on the Java EE technology. First I'd like to tell you what I want to achieve, then what I already tried. Task: Imagine two types of configurations, which you want to ...
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NoSQL in Java Enterprise Application

I'm planning a large scale enterprise application that requires reliability and standardization comfort that Java EE provides. At the same time, I'm wondering if I go for Java EE, will I be able to ...
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How should a JEE application store credentials for logging in to an external system?

I am in a situation where I have a Web Application (WAR) that is accessing a REST service provided by another application. The REST service uses Basic HTTP Authentication. So that means the ...
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Embedded tomcat cold deployment without service disruption

I have the following scenario. For various reasons I chose to use embedded tomcat for my rest backend that will form a cluster of AWS machines. I will want to deploy fairly frequently updates ...
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Microservices - remove unnecessary boilerplate?

My thoughts: microservices are becoming popular for distributed architecture java is (for now) a main course in enterprise applications JEE stack too How to reduce a boilerplate (including Maven ...
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handling external events in a cluster environment

I have an app written with JSF and Spring using JPA+Hibernate which is running on a Glassfish4 server. Right now I have an Observer pattern which is listening for some Postgresql events. Let`s say ...
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How is ORB distinct from an endpoint?

What, fundamentally, am I misunderstanding about how to use appclient? The Application Client Container (ACC) includes a set of Java classes, libraries, and other files that are required for ...
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How to avoid multiple long polling request from chat app

I am building a real time chat app for eCommerce app customer-seller. As I am using long polling Technic. I need to understand how can I optimize multiple long polling request. For eg. I am a ...
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How does Hibernate Cascade on OneToOne work under the hood

I have the following entities corresponding to tables into DB: User, UserAttempt; User has a FK to UserAttempt, and UserAttempt has no knowledge of User. If I do the following inside a transactional ...
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How did “Stub” and “Skeleton” get their names?

In Java remote method invocation, the abstract method on the client-side is called "stub", which communicates with the "skeleton" on the server side and gets back the results. But why the names? For ...
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Writing test cases for another web service

I'm working in a team as a developer. We have developed a product where we generate letters by populating some XML file. This XML file ONLY contains some texts that need to show up in a pdf document. ...
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Conceptually, how should a unidirectional multivalued relationship be implemented?

Ok, I'm trying not to upset the programmers list, but not so successful so far. My apologies. I'm trying to understand, conceptually and based on experience, which is the correct way for a JPA ...
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Good structure for customizable software/framework (JavaEE) with Maven

In a way this question touches similar issues like other before, for example this one: How to maintain different, customized versions of the same software for multiple clients It's a bit different ...