Using External Script located inside a directory in REST Endpoint causes HTTP 500 error and Found by class scanning and can't be edited here

Using External Script located inside a directory in REST Endpoint causes:

• HTTP 500 error (error500.txt)
• Found by class scanning and can't be edited here
  

Step To Reproduce

1. In Script Editor, create a directory named test-resources.
2. Create a script in that directory with the following named doSomething.groovy:

    
   import com.onresolve.scriptrunner.runner.rest.common.CustomEndpointDelegate
   import groovy.json.JsonBuilder
   import groovy.transform.BaseScript
   
   import javax.ws.rs.core.MultivaluedMap
   import javax.ws.rs.core.Response
   
   @BaseScript CustomEndpointDelegate delegate
   
   doSomething(httpMethod: "GET", groups: ["jira-administrators"]) { MultivaluedMap queryParams, String body ->
       return Response.ok(new JsonBuilder([abc: 42]).toString()).build();
   }
   

3. Create a REST endpoint with the external script: doSomething.groovy.
4. Click on the link to test the endpoint:
   
5. You should get an HTTP 500 error in a new tab.

Notes

Looking at the error, you will notice the following:

 
Caused by: groovy.util.ResourceException: Cannot open URL: file:/Users/benzkek/JIRA_HOME/8.11.1/scripts/doSomething.groovy at groovy.util.GroovyScriptEngine.getResourceConnection(GroovyScriptEngine.java:400)

It seems that it is looking for doSomething.groovy at the root instead of /test-resources directory.
The script is located at /Users/benzkek/JIRA_HOME/8.11.1/scripts/test-resources/doSomething.groovy

Workaround

Moving the script to the root will be able to work around the bug.

OR

Use the package statement where your script is in a directory and make sure that your directory is a valid package name. For example, the script is located in $JIRA_HOME/scripts/testresources then your script should be like below:

 
package testresources

import com.onresolve.scriptrunner.runner.rest.common.CustomEndpointDelegate
import groovy.json.JsonBuilder
import groovy.transform.BaseScript

import javax.ws.rs.core.MultivaluedMap
import javax.ws.rs.core.Response

@BaseScript CustomEndpointDelegate delegate

doSomething(httpMethod: "GET", groups: ["jira-administrators"]) { MultivaluedMap queryParams, String body ->
    return Response.ok(new JsonBuilder([abc: 42]).toString()).build();
}