Fail to locate the ImagePath in java

Bug tracked on Github: https://github.com/RaiMan/SikuliX1/issues/511
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Hi , i tried to locate the image path using ("someClass/images"), but fail to add it in the image path. Only target/classes folder is added. the sub folder is not added...
My Project Structure
src
-main
--java
--JarMainClass
-resources
--images
---app2
----image1.png

Code:

public class JarMainClass {
    public static void main(String[] args) throws IOException, URISyntaxException, FindFailed {
        System.out.println("Hello!");
        ImagePath.add("JarMainClass/images/app2");
        System.out.println("1: "+ImagePath.getPaths());

}

Console:

[ERROR Commons] parameter(main: JarMainClass/images/app2, sub: null)
[ERROR Commons] makeURL: file does not exist: C:\Users\winnie.choi\Documents\testproject\JarMainClass\images\app2
[ERROR Commons] parameter(main: file:/C:/Users/winnie.choi/Documents/testproject/target/classes/, sub: images/app2)
[ERROR Commons] makeURL: URL protocol not implemented
1: [null, C:\Users\winnie.choi\Documents\testproject\target\classes]

Environment
sikulixapi: 2.0.5
java: 1.8
OS: Windows Server 2012 R2
Maven

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I am able to add path by providing absolute path (e.g. src/main/resources/images/app2) or using ClassLoader.getSystemResource("images/app2").getPath() when running in the IDE. But i am unable to add the image path when running the exported jar. following is logged when trying to access the path by getResource() function
[ERROR Commons] parameter(main: file:\C:\Users\winnie.choi\Documents\jar\jar-with-dependencies.jar!\images\app2, sub: null)
[ERROR Commons] makeURL: mainFile.getCanonicalFile().toURI().toURL(): C:\Users\winnie.choi\Documents\jar\file:\C:\Users\winnie.choi\Documents\jar\jar-with-dependencies.jar!\images\app2 (The filename, directory name, or volume label syntax is incorrect)
[ERROR Commons] parameter(main: file:\C:\Users\winnie.choi\Documents\jar\jar-with-dependencies.jar!\images\app2, sub: null)
[ERROR Commons] makeURL: file does not exist: C:\Users\winnie.choi\Documents\jar\file:\C:\Users\winnie.choi\Documents\jar\jar-with-dependencies.jar!\images\app2
path:[null]