Organize imports adding default StringTemplate imports

[danthe1st]

If default String template processors (like STR) are used, the Organize imports option creates an unnecessary static import.

Steps to reproduce

• Install Eclipse IDE for Java Developers (2024-03)
• Create a new project with Java 21
• Enable Preview features using Configure>Enable Preview Features
• Create a class like the following:

package bug;

public class Bug {
	public static void main(String[] args) {
		System.out.println(STR."");
	}
}

• Save the class
• Execute the Action Organize Imports

expected behavior

The source file doesn't change

actual behavior

A new line is added before the class:

import static java.lang.StringTemplate.STR;

Full class after Organize Imports:

package bug;

import static java.lang.StringTemplate.STR;
[installationDetails.txt](https://github.com/eclipse-jdt/eclipse.jdt.core/files/14603964/installationDetails.txt)

public class Bug {
	public static void main(String[] args) {
		System.out.println(STR."");
	}
}

System details

I am using Ubuntu 23.10 x86_64
Configuration tab of the Installation Details

[jukzi]

• Create a new project with Java 21

did you mean Java 22? STR is a preview feature of 22

[danthe1st]

@jukzi It was there in 21 (JEP here) and for me, it happens with Java 21 (In fact, I don't even have the Java 22 support plugin installed).
However, I don't know how important that is now that String templates will likely be removed in Java 23 (already integrated).

[jukzi]

note that Stringtemplates will be removed from ecj anyway #2353

[danthe1st]

Yeah when creating this issue, this looked different. I guess this could be closed when string templates are removed from EJC.

[danthe1st]

See the above comment. Closing because string templates are removed from the JDK.