Run servlet as homepage [duplicate] - servlets

Question

This question already has answers here:
Change default homepage in root path to servlet with doGet
(2 answers)
Closed 7 years ago.
I have a dynamic web project with a servlet (structure below).
When right-clicking HomeServlet.java --> Run as --> Run on Server --> Tomcat...
It runs fine with the URL: http://localhost:8080/JSTLTest/HomeServlet
When right-clicking JSTLTest --> Run as --> Run on Server --> Tomcat...
I get an error and this URL is used: http://localhost:8080/JSTLTest/
The problem is, i want to deploy it on a server like AWS elastic beanstalk and i guess it doesn't work because he won't use the servlet to start, like:
http://default-environment-9a5exxxd3z.elasticbeanstalk.com/HomeServlet
Is my web.xml wrong?
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<display-name>JSTLTest</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>Home</servlet-name>
<servlet-class>com.journaldev.servlet.HomeServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Home</servlet-name>
<url-pattern>/HomeServlet</url-pattern>
</servlet-mapping>
</web-app>
Structure:

Answer 1

Replace
<url-pattern>/HomeServlet</url-pattern>
with
<url-pattern></url-pattern>
The url pattern is the url that added to the the protocol + server + port + context (something like http://localhost:8080/myapp) can be used to access to a particular servlet.
Note the pattern must be empty. The pattern / is the default pattern. So it match all possible patterns (also what you don't like).