Java

Building a web UI in plain Java using Vaadin CDI

A video version of this tutorial. There are many Java developers who’d love to build web apps, but hesitate to start as web development usually contains lot of different programming languages (Java, HTML, CSS, JavaScript), complex client-server development model and buggy browser environment. Vaadin Framework is an Apache 2.0 licensed open source library for exactly those developers. This tutorial shows how to get started with Vaadin and how to use …

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Building a web UI in plain Java using Vaadin CDI

A video version of this tutorial. There are many Java developers who’d love to build web apps, but hesitate to start as web development usually contains lot of different programming languages (Java, HTML, CSS, JavaScript), complex client-server development model and buggy browser environment. Vaadin Framework is an Apache 2.0 licensed open source library for exactly those developers. This tutorial shows how to get started with Vaadin and how to use …

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Server-side database-backed OData services with Olingo and JPA 1

This article is the third in a series of three tutorials that cover the following topics: JPA2 in SAP NetWeaver Building server-side database-backed OData services in SAP NetWeaver with JPA2 Building server-side database-backed OData services in SAP NetWeaver with JPA1 Introduction In the previous tutorials we have demonstrated how to use JPA 2 in SAP NetWeaver and build database-backed OData services with it. The main takeaway of this last tutorial …

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Passing the application context object to classes in unit testing

While writing junits for unit/integration testing, many times we come across a scenario where the application context object is required for multiple reasons like to get bean objects, to listen to context events etc. For example, a service invokes a controller which in-turn invokes a DAO class. We try to get a bean dependency by doing a look up for the beans configured in spring configuration xml files. Configuration config …

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Server-side database-backed OData services in SAP NetWeaver with JPA2

This article is the second in a series of three tutorials that cover the following topics: JPA2 in SAP NetWeaver Building server-side database-backed OData services in SAP NetWeaver with JPA2 Building server-side database-backed OData services in SAP NetWeaver with JPA1 Introduction REST services have become the de-facto standard for inter-service communication in web applications over the last years. The OData protocol simplifies the provision and consumption of RESTful APIs in …

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JPA2 in SAP NetWeaver AS Java

This article is the first in a series of three tutorials that cover the following topics: JPA2 in SAP NetWeaver Building server-side database-backed OData services in SAP NetWeaver with JPA2 Building server-side database-backed OData services in SAP NetWeaver with JPA1 Introduction The SAP NetWeaver AS Java provides a JPA2-compliant container from version 7.5 SP03 onwards according to the SAP NetWeaver 7.5 SP03 release notes. A rough outline for the necessary …

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Selenium IDE Installation – Windows

Table of Contents Pre-requisites JAVA Installation and Setup Mozilla Firefox installation Selenium IDE Selenium Add in Installation Selenium Server installation Example    Pre-requisites – Java, Mozilla Firefox Once Java is installed, under Environment variables set the following: JAVA_HOME C:Program FilesJavajdk1.7.0_51 JRE_HOME C:Program FilesJavajdk1.7.0_51jre PATH %JAVA_HOME%in;C:Program FilesJavajdk1.7.0_51; In order to ensure Java is installed successfully and the env variables are set, the java command should be successfully executed from any location …

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Load Testing with JMeter: Test Results Visualization Using Kibana Dashboards

Update on 24.06.2017 The listener plugin has been re-implemented in order to reduce number of external dependencies that are not contained in JMeter distribution and require additional libraries: HTTP client was changed from Jersey to Elasticsearch Java REST (external dependency), JSON processor was changed from Gson to json-smart (contained in JMeter distribution). Additional listener configuration parameter has been introduced to allow exclusion of specific attributes of sample result from being …

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