Where should I add servlets in the Eclipse IDE's new folder structure

Solution 1:

The "new" default folder structure, introduced in WTP 3.21 (Eclipse 2021-03, cf. release notes) follows Maven conventions, therefore:

1. the folder /src/main/java is a source folder and contains Java sources. Here you should put your servlets. The contents of this folder are compiled into the WEB-INF/classes folder of the WAR file,
2. the folder /src/main/resources contains files that need to be in the classpath, but are not compiled. This is also mapped into the WEB-INF/classes folder of the WAR file,
3. the folder /src/main/webapp is the root folder of the WAR file (replaces the /WebContent folder). Here (and in its subfolders) you'll usually put JSPs and static web resources.