refactor: reduce complexity of setInputClassLoader (#5242)

src/main/java/spoon/support/StandardEnvironment.java

@@ -430,25 +430,20 @@ public void setInputClassLoader(ClassLoader aClassLoader) {
 			final URL[] urls = ((URLClassLoader) aClassLoader).getURLs();
 			if (urls != null && urls.length > 0) {
 				// Check that the URLs are only file URLs
-				boolean onlyFileURLs = true;
 				for (URL url : urls) {
 					if (!"file".equals(url.getProtocol())) {
-						onlyFileURLs = false;
+						throw new SpoonException("Spoon does not support a URLClassLoader containing other resources than local file.");
 					}
 				}
-				if (onlyFileURLs) {
-					List<String> classpath = new ArrayList<>();
-					for (URL url : urls) {
-						try {
-							classpath.add(Path.of(url.toURI()).toAbsolutePath().toString());
-						} catch (URISyntaxException | FileSystemNotFoundException | IllegalArgumentException ignored) {
-							classpath.add(URLDecoder.decode(url.getPath(), StandardCharsets.UTF_8));
-						}
+				List<String> classpath = new ArrayList<>();
+				for (URL url : urls) {
+					try {
+						classpath.add(Path.of(url.toURI()).toAbsolutePath().toString());
+					} catch (URISyntaxException | FileSystemNotFoundException | IllegalArgumentException ignored) {
+						classpath.add(URLDecoder.decode(url.getPath(), StandardCharsets.UTF_8));
 					}
-					setSourceClasspath(classpath.toArray(new String[0]));
-				} else {
-					throw new SpoonException("Spoon does not support a URLClassLoader containing other resources than local file.");
 				}
+				setSourceClasspath(classpath.toArray(new String[0]));
 			}
 		}
 		this.classloader = aClassLoader;