In order to use Talend Component Kit, you need the following tools installed on your machine:
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Java JDK 1.8.x. You can download it from Oracle website.
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Talend Open Studio 7.0 or greater to integrate your components.
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A Java Integrated Development Environment such as Eclipse or IntelliJ. IntelliJ is recommended as a Talend Component Kit plugin is available.
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Optional: If you use IntelliJ, you can install the Talend Component Kit plugin for IntelliJ.
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Optional: A build tool:
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Apache Maven 3.5.4 is recommended to develop a component or the project itself. You can download it from Apache Maven website.
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You can also use Gradle, but at the moment certain features are not supported, such as validations.
It is optional to install a build tool independently since Maven and Gradle wrappers are already available with Talend Component Kit.  
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