QuarkusEntryPoint assumes URL contains a file path

[moritz-bruder]

In

quarkus/independent-projects/bootstrap/runner/src/main/java/io/quarkus/bootstrap/runner/QuarkusEntryPoint.java

Lines 30 to 32 in cac51a6

	String path = QuarkusEntryPoint.class.getProtectionDomain().getCodeSource().getLocation().getPath();
	String decodedPath = URLDecoder.decode(path, "UTF-8");
	Path appRoot = new File(decodedPath).toPath().getParent().getParent().getParent();

it is assumed that the returned URL contains a file path. However, the class may have been loaded from another source. Unfortunately, there is no getParent in URL but perhaps you could use toURI().resolve("../../..") instead.

[jaikiran]

Hello @moritz-bruder, could you add some background context on what issue this piece of code is causing. Perhaps with a reproducible example? This code may or may not have issues and I haven't paid detailed attention to it, but knowing the context will help us understand if there are better ways to deal with it.

[moritz-bruder]

Hello @jaikiran,

We are trying to make Quarkus work on JamaicaVM. However, the code source for builtin classes is not a URL with the file protocol in our case. The code in QuarkusEntryPoint seems to get the working directory through the code source (the path of the jar in this case). Am I right in that assumption? I am afraid it may not be easy to provide an example to you.

Would it be possible to check if the protocol is file and if not use a fallback path? For example, the current working directory or a property.

[geoand]

@moritz-bruder if you have something in mind, feel free to open a PR

[geoand]

Closing as we did not get feedback