> For the complete documentation index, see [llms.txt](https://docs.editran.onesait.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.editran.onesait.com/documentacion-editran/publico-editranff-lite-v7-open-en/linux/instalacion/requisitos-de-instalacion/java-javafx-y-entorno-grafico.md).
# Java, JavaFX, and graphical environment
To run the signing client, Java 8 at a minimum is required, with the extension **Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files.**
To run the administrator, a graphical environment and Java 8 with JavaFX are also required.
If the Unix machine on which the product is to be deployed does not have a graphical environment, the administrator can be run from another Windows or Unix machine that does have a graphical environment and can connect to the first one via SSH. For more details, see section 3.
Not all Java virtual machines include the JavaFX module. Below are some that do have it and whose compatibility with the administrator has been verified:
* Oracle Java (****): This is the developers' Java machine, but its commercial use requires a license that must be paid for.
* Oracle Java, free version (** downloads.html**): This is the latest version of Oracle Java released under a free-use license, but since it is an older version, it lacks the most recent security patches and improvements.
* Azul Zulu Java (****): This virtual machine has a free-use license and is kept up to date at the same pace as Oracle's.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.
Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:
```
GET https://docs.editran.onesait.com/documentacion-editran/publico-editranff-lite-v7-open-en/linux/instalacion/requisitos-de-instalacion/java-javafx-y-entorno-grafico.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.